The Other Shop Was Sooooo Close To Getting This One Right
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Date: 2025-01-22
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Comments and reviews: 20
ericstalker7973
Hello Mr. O this was a great educational video. Short and to the point. I guess the only thing that would have made this video cooler is if the sensor was plugged in properly and the new oxygen sensor was defective how many times have we all seen that with defective new parts. Sometimes that can cost you a lot of time and lead you down the wrong rabbit hole. So about some comment somebody said about back feeding battery positive into the computer through a test light that reminded me what happened to me years ago when I was at Alfred State college around 1995. A student had a F150 i think it was around a 1987-88 we were learning how to extract codes by jumping two of the wires together at the diagnostic connector underneath the hood and then counting the flashing of the test light. (Remember them days ) Well I did something wrong and we all seen a spark at the plug. Long story short after that happened his truck would not idle anymore without holding the throttle open a little. Well i had to buy the guy an ECM luckily Howbill junk yard had one. I think it cost me 50 or 75 bucks back then lol the first and only computer I ever fried
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Hello Mr. O this was a great educational video. Short and to the point. I guess the only thing that would have made this video cooler is if the sensor was plugged in properly and the new oxygen sensor was defective how many times have we all seen that with defective new parts. Sometimes that can cost you a lot of time and lead you down the wrong rabbit hole. So about some comment somebody said about back feeding battery positive into the computer through a test light that reminded me what happened to me years ago when I was at Alfred State college around 1995. A student had a F150 i think it was around a 1987-88 we were learning how to extract codes by jumping two of the wires together at the diagnostic connector underneath the hood and then counting the flashing of the test light. (Remember them days ) Well I did something wrong and we all seen a spark at the plug. Long story short after that happened his truck would not idle anymore without holding the throttle open a little. Well i had to buy the guy an ECM luckily Howbill junk yard had one. I think it cost me 50 or 75 bucks back then lol the first and only computer I ever fried
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windward2818
What is so surprising about the video is two previous repair shops replaced the Bank 1 Sensor 1 HEGO and the P0135 persisted, even though this is due to not properly seating a connector. But, why would the 2nd shop change the HEGO again, when the P0135 DTC indicates problems with the O2 Heater Circuit Bank 1 Sensor 1, and you have easy access at the module connector to test the circuit, and given the fact that the sensor was just replaced by the previous shop. Are we saying that the 2nd shop does not know how to test for voltage at the PCM connector
For OBD II the Ford engineers put in full diagnostic and testing for the HEGO Heater circuit as per the software requirement document to meet OBD II as Ford interpreted the directive. The exact implementation of OBD II varies slightly from OEM to OEM depending on how the directive translates into the actual system application (driven by the engineers and lawyers. Ford is perhaps better at taking the description verbatim as translated into software requirements, especially for OBD II engine controls.
The PCM connector harness wires should be covered and wrapped.
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What is so surprising about the video is two previous repair shops replaced the Bank 1 Sensor 1 HEGO and the P0135 persisted, even though this is due to not properly seating a connector. But, why would the 2nd shop change the HEGO again, when the P0135 DTC indicates problems with the O2 Heater Circuit Bank 1 Sensor 1, and you have easy access at the module connector to test the circuit, and given the fact that the sensor was just replaced by the previous shop. Are we saying that the 2nd shop does not know how to test for voltage at the PCM connector
For OBD II the Ford engineers put in full diagnostic and testing for the HEGO Heater circuit as per the software requirement document to meet OBD II as Ford interpreted the directive. The exact implementation of OBD II varies slightly from OEM to OEM depending on how the directive translates into the actual system application (driven by the engineers and lawyers. Ford is perhaps better at taking the description verbatim as translated into software requirements, especially for OBD II engine controls.
The PCM connector harness wires should be covered and wrapped.
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spelunkerd
For those following along, Eric jumped across the two heater wires at the connector to the O2 sensor heater, to see if he had voltage at the computer. It's really important to note that he used a test light to jump across that connector, not just a jumper wire. If you used a jumper wire, you're replacing the heater element with straight wire, so you've got no resistance in the circuit. In this case you'd get away with it because we know the computer ground is switched off (based on the result just after 7: 59. In other cases, you could cause a catastrophic short in the wire, possibly even frying the computer driver. Jumping with a test light is a great way to put a maximum limit on current flow, mimicking the resistance of the heater element that you are bypassing. The test light won't glow because current is not flowing, but voltage will be present in the downstream wire just fine. It's been a recurring theme that Eric consistently uses efficient work flow that is not only fast but also safe, protecting himself even if he might happen to be wrong about a conclusion along the way.
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For those following along, Eric jumped across the two heater wires at the connector to the O2 sensor heater, to see if he had voltage at the computer. It's really important to note that he used a test light to jump across that connector, not just a jumper wire. If you used a jumper wire, you're replacing the heater element with straight wire, so you've got no resistance in the circuit. In this case you'd get away with it because we know the computer ground is switched off (based on the result just after 7: 59. In other cases, you could cause a catastrophic short in the wire, possibly even frying the computer driver. Jumping with a test light is a great way to put a maximum limit on current flow, mimicking the resistance of the heater element that you are bypassing. The test light won't glow because current is not flowing, but voltage will be present in the downstream wire just fine. It's been a recurring theme that Eric consistently uses efficient work flow that is not only fast but also safe, protecting himself even if he might happen to be wrong about a conclusion along the way.
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spelunkerd
For those following along, Eric jumped across the two heater wires at the connector to the O2 sensor heater, to see if he had voltage at the computer. It's really important to note that he used a test light to jump across that connector, not just a jumper wire. If you used a jumper wire, you're replacing the heater element with straight wire, so you've got no resistance in the circuit. In this case you'd get away with it because we know the computer ground is switched off (based on the result just after 7: 59. In other cases, you could cause a catastrophic short in the wire, possibly even frying the computer driver. Jumping with a test light is a great way to put a maximum limit on current flow, mimicking the resistance of the heater element that you are bypassing. The test light won't glow because current is not flowing, but voltage will be present in the downstream wire just fine. It's been a recurring theme that Eric consistently uses efficient work flow that is not only fast but also safe, protecting himself even if he might happen to be wrong about a conclusion along the way.
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For those following along, Eric jumped across the two heater wires at the connector to the O2 sensor heater, to see if he had voltage at the computer. It's really important to note that he used a test light to jump across that connector, not just a jumper wire. If you used a jumper wire, you're replacing the heater element with straight wire, so you've got no resistance in the circuit. In this case you'd get away with it because we know the computer ground is switched off (based on the result just after 7: 59. In other cases, you could cause a catastrophic short in the wire, possibly even frying the computer driver. Jumping with a test light is a great way to put a maximum limit on current flow, mimicking the resistance of the heater element that you are bypassing. The test light won't glow because current is not flowing, but voltage will be present in the downstream wire just fine. It's been a recurring theme that Eric consistently uses efficient work flow that is not only fast but also safe, protecting himself even if he might happen to be wrong about a conclusion along the way.
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eric_seguin
I drive a 2001 Ford Ranger 4. 0/5spd. automatic. It has 230, 000 miles on it. One wiper on the driver side, color yellow with a red drivers door. Put a new radiator and thermostat housings, 3 sensors on housing, 3 hoses. Cost $793 but I am not able to wrench anymore so cool with that. I get in, turn key and it starts and goes where I want to go. Transmission was rebuilt at a junk yard because they sold me the wrong one. Kid there said he could rebuild it and he did. That was 4 yrs. ago. I tried to take it to my tranny shop of 30 yrs. They said they don't touch Rangers. Their loss. I put new tires on it in November. This is my 5th Ranger. People always hit me. Haven't been in a wreck that was my fault in over 20 yrs. You can knock them all you want. I paid $1900 for this truck about 6 yrs. ago. Keep knocking them. Keeps them cheap. LOL
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I drive a 2001 Ford Ranger 4. 0/5spd. automatic. It has 230, 000 miles on it. One wiper on the driver side, color yellow with a red drivers door. Put a new radiator and thermostat housings, 3 sensors on housing, 3 hoses. Cost $793 but I am not able to wrench anymore so cool with that. I get in, turn key and it starts and goes where I want to go. Transmission was rebuilt at a junk yard because they sold me the wrong one. Kid there said he could rebuild it and he did. That was 4 yrs. ago. I tried to take it to my tranny shop of 30 yrs. They said they don't touch Rangers. Their loss. I put new tires on it in November. This is my 5th Ranger. People always hit me. Haven't been in a wreck that was my fault in over 20 yrs. You can knock them all you want. I paid $1900 for this truck about 6 yrs. ago. Keep knocking them. Keeps them cheap. LOL
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JasonGunn418
Yep I made a 4K mistake, did not connect the battery cables on right, blew a fuse. It was the IGN 1 fuse. I then thought my transmission was bad, so I bought a GARBAGE Monster transmission. Then I found the fuse, it was a 30 amp under the hood. Truck was fine, and then the transmission started to go bad. Less than 5K on the trans.
Called Monster transmission, they gave me every excuse not to honor their warranty. They were successful. Never Buy a Monster transmission. But me not doing the basics I found a JONK replacement.
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Yep I made a 4K mistake, did not connect the battery cables on right, blew a fuse. It was the IGN 1 fuse. I then thought my transmission was bad, so I bought a GARBAGE Monster transmission. Then I found the fuse, it was a 30 amp under the hood. Truck was fine, and then the transmission started to go bad. Less than 5K on the trans.
Called Monster transmission, they gave me every excuse not to honor their warranty. They were successful. Never Buy a Monster transmission. But me not doing the basics I found a JONK replacement.
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ozzyfranf
I have the 72'' U. S. General top & bottom. And I have hit my head on the door & what I intend on doing is building a spacer of some sort probably out of square tubing. And put that between the top & bottom box. Just need to find the time to do it. Just enough to bring the top up. Probably 2x2 square tubing. Then measure cut & weld and install. Or I thought about just putting two pieces of tubing on the ends leaving the front open the you could put things between the top & bottom. Maybe pipe wrenches whatever fits.
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I have the 72'' U. S. General top & bottom. And I have hit my head on the door & what I intend on doing is building a spacer of some sort probably out of square tubing. And put that between the top & bottom box. Just need to find the time to do it. Just enough to bring the top up. Probably 2x2 square tubing. Then measure cut & weld and install. Or I thought about just putting two pieces of tubing on the ends leaving the front open the you could put things between the top & bottom. Maybe pipe wrenches whatever fits.
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macfranks2456
Spent my whole professional life monkeying around with computers and networks and software and hardware. there's a standard saying that we always swore by and it goes like this, to err is human but to really foul things up requires the use of a computer. single worst thing that has ever been done in the automotive industry is to introduce a cheap flunky twisted pair wire local area network with a dozen or more computers all trying to talk to each other in what can only be described as a harsh environment.
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Spent my whole professional life monkeying around with computers and networks and software and hardware. there's a standard saying that we always swore by and it goes like this, to err is human but to really foul things up requires the use of a computer. single worst thing that has ever been done in the automotive industry is to introduce a cheap flunky twisted pair wire local area network with a dozen or more computers all trying to talk to each other in what can only be described as a harsh environment.
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goodcitizen64
While stationed in Alaska, I had a 1987 Ford Ranger 4x4 long bed with the junk 2. 8l v-6 which I swapped in a 302 and 6 inch lift kit rinning 33x12. 50x 15 wheels and tires! That truck was a beast especially after putting on aftermarket front and rear bumpers with winches! I never got stuck but did a hundred on more recoveries! I sure wish I could have kept it when I left the Army!
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While stationed in Alaska, I had a 1987 Ford Ranger 4x4 long bed with the junk 2. 8l v-6 which I swapped in a 302 and 6 inch lift kit rinning 33x12. 50x 15 wheels and tires! That truck was a beast especially after putting on aftermarket front and rear bumpers with winches! I never got stuck but did a hundred on more recoveries! I sure wish I could have kept it when I left the Army!
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mrdfoutz
Lesson: Those ASE Certified stickers posted everywhere in a shop probably mean that the Techs are following procedures in a book, and they get locked up when the next page doesn't mention the issues encountered, and then have no point of reference of where they left the rails. Experience combined with extra-common sense seem to the the default in Dr. O's office. Well done, as always.
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Lesson: Those ASE Certified stickers posted everywhere in a shop probably mean that the Techs are following procedures in a book, and they get locked up when the next page doesn't mention the issues encountered, and then have no point of reference of where they left the rails. Experience combined with extra-common sense seem to the the default in Dr. O's office. Well done, as always.
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timothymoss6997
Look. I bought a 2000 Ranger brand new. Great truck, IF and I say IF you want it to perform like a tractor. I love Danger Rangers, because they are the last vehicle I can remember that doesn't melt down if there's a slight lack of resistance on the ECM, PCM, Computer, whatever you want to call it. It will run, even with injection, as long as it has 12V and or a steep hill.
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Look. I bought a 2000 Ranger brand new. Great truck, IF and I say IF you want it to perform like a tractor. I love Danger Rangers, because they are the last vehicle I can remember that doesn't melt down if there's a slight lack of resistance on the ECM, PCM, Computer, whatever you want to call it. It will run, even with injection, as long as it has 12V and or a steep hill.
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mattwillson8280
Have you had any rangers in with the drl's causing a dead battery yet Nan's 09 intermittently would do it, my 09 hasn't started doing that yet though. Her's broke a valve spring resulting in removing the motor. I believe I have invented new curse words aboot that process. mine is around 50, 000 miles less than hers, so I prolly get to mine in the near future as well.
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Have you had any rangers in with the drl's causing a dead battery yet Nan's 09 intermittently would do it, my 09 hasn't started doing that yet though. Her's broke a valve spring resulting in removing the motor. I believe I have invented new curse words aboot that process. mine is around 50, 000 miles less than hers, so I prolly get to mine in the near future as well.
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djsi38t
Yep it's cold -15 below zero here in Maine at 6 am. Don't go outside you will freeze up solid. I had one of the Famous Plastic Coolant system parts fail yesterday. Break right off. After 13 years the extreme cold finally snappede the plastic. Coolant wen everywhere had to limp it on home and then pay way to much for another plastic replacement part at my local advance auto.
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Yep it's cold -15 below zero here in Maine at 6 am. Don't go outside you will freeze up solid. I had one of the Famous Plastic Coolant system parts fail yesterday. Break right off. After 13 years the extreme cold finally snappede the plastic. Coolant wen everywhere had to limp it on home and then pay way to much for another plastic replacement part at my local advance auto.
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paulstandaert5709
Had a customer with a Mazda 3 that lost its fuel pump. Another shop replaced it and all was good for months, and then the symptoms returned.
I pop the back seat out in anticipation of cutting a hole and doing a pump r&r and just touched the electrical connector and it came right apart. I clicked it back in and the problem never returned.
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Had a customer with a Mazda 3 that lost its fuel pump. Another shop replaced it and all was good for months, and then the symptoms returned.
I pop the back seat out in anticipation of cutting a hole and doing a pump r&r and just touched the electrical connector and it came right apart. I clicked it back in and the problem never returned.
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jeremyg9240
I just ran into a similar issue. Looked at a Durango today with a cylinder 7 misfire. Opened the hood and found obvious signs other people had been in there. I went to swap the coil pick with cylinder 5. When I grabbed the connector it wasn't clicked. I reconnected it and BOOM. Misfire gone. I felt like superman lol
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I just ran into a similar issue. Looked at a Durango today with a cylinder 7 misfire. Opened the hood and found obvious signs other people had been in there. I went to swap the coil pick with cylinder 5. When I grabbed the connector it wasn't clicked. I reconnected it and BOOM. Misfire gone. I felt like superman lol
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johnpetersen8116
I caught the subtle HEGOS He Goes reminder that you mumbled to yourself in the beginning of the video to find Heated Exhaust Gas Oxygen Sensor list on the scan tool. Its little things like that that help us navigate this stuff just that much more efficiently. always great stuff Eric!
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I caught the subtle HEGOS He Goes reminder that you mumbled to yourself in the beginning of the video to find Heated Exhaust Gas Oxygen Sensor list on the scan tool. Its little things like that that help us navigate this stuff just that much more efficiently. always great stuff Eric!
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Ruggie1of1
In the bonus part when it was showing 0 the displayed unit was A but in bonus 2 the unit stepped down to mA for some reason. A good case for never trust your scan data (or at least trust but verify since neither reading was incorrect, but one of them was a lot more useful than the other)
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In the bonus part when it was showing 0 the displayed unit was A but in bonus 2 the unit stepped down to mA for some reason. A good case for never trust your scan data (or at least trust but verify since neither reading was incorrect, but one of them was a lot more useful than the other)
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Darkvirgo88xx
Welcome back to South Main Auto with you're guest narrator myself, Montreal. Follow along with Eric as he uses his vast automotive knowledge
and experience to properly diagnose a fix a issue on a customers vehicle in this episode, stay blessed everyone.
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Welcome back to South Main Auto with you're guest narrator myself, Montreal. Follow along with Eric as he uses his vast automotive knowledge
and experience to properly diagnose a fix a issue on a customers vehicle in this episode, stay blessed everyone.
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JPilot2
G'day, Eric! It's -5 degrees here in the Great Lakes State, MI. (Also known as Water-Winter Wonderland) Like you said. Colder Than A Well Digger’s Arse! Lol! Cheers!
P. S. I saw a sign: Rest Area 25 Miles. That's pretty big. Some people must be really tired.
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G'day, Eric! It's -5 degrees here in the Great Lakes State, MI. (Also known as Water-Winter Wonderland) Like you said. Colder Than A Well Digger’s Arse! Lol! Cheers!
P. S. I saw a sign: Rest Area 25 Miles. That's pretty big. Some people must be really tired.
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fikaround
Blessed bovine, a Very Odd Looking Vehicular Object spotted on the lift at 15: 07! Always a treat to watch Eric out of his element with the fancy imports if we get lucky in a future upload. South Main European Auto possibly incoming.
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Blessed bovine, a Very Odd Looking Vehicular Object spotted on the lift at 15: 07! Always a treat to watch Eric out of his element with the fancy imports if we get lucky in a future upload. South Main European Auto possibly incoming.
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