Repair Buick LeSabre P0102 MAF Trouble
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Date: 2020-08-05
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Comments and reviews: 9
Lee
For some reason, some of these aftermarket mass airflow sensors don't like my 99 Regal. They aren't technically faulty, but the engine doesn't seem to receive them well at all. The engine still feels like its lacking power. I have a sensor from the local Buick dealer that came out of a junkyard Regal (one a few years' newer than mine) and the car flies like a rocket so long as I have it installed. If I put the Delphi mass airflow sensor in, the engine performance feels de-rated. No, there won't be an engine light or MAF sensor code, just the feeling of a de-rated engine. I can put the GM sensor back in and, lo and behold, the full performance (or really close to it) has returned. It's as if the ECM knows it's not a GM sensor, so it's not going to put out 100% power. Maybe I'm crazy but I can tell when the engine isn't as fast as it was, say, yesterday. Just did all four rotors, plus front and rear brakes, for a whopping 600. I deliver pizza for a living (yes, I drive the Regal for work) so I've gotta have brakes. Oh well, the car is highly reliable so I have no plans to junk it.
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For some reason, some of these aftermarket mass airflow sensors don't like my 99 Regal. They aren't technically faulty, but the engine doesn't seem to receive them well at all. The engine still feels like its lacking power. I have a sensor from the local Buick dealer that came out of a junkyard Regal (one a few years' newer than mine) and the car flies like a rocket so long as I have it installed. If I put the Delphi mass airflow sensor in, the engine performance feels de-rated. No, there won't be an engine light or MAF sensor code, just the feeling of a de-rated engine. I can put the GM sensor back in and, lo and behold, the full performance (or really close to it) has returned. It's as if the ECM knows it's not a GM sensor, so it's not going to put out 100% power. Maybe I'm crazy but I can tell when the engine isn't as fast as it was, say, yesterday. Just did all four rotors, plus front and rear brakes, for a whopping 600. I deliver pizza for a living (yes, I drive the Regal for work) so I've gotta have brakes. Oh well, the car is highly reliable so I have no plans to junk it.
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John
I love ur vids! Always informing! I just bought a 2003 lesabre with 98, 000 miles. Exellant condition! Runs awesome but idling about 600 or 700rpm. I thought thats a hair to low. Doesn't stall and no codes or lights. Would it be wise to just replace map, maf and air intake sensor as preventive maintenance? Can I just blow some mass air flow cleaner in the mass air flow sensor? These parts are not to expensive anyways. I did clean the iac valve with carb cln and it does seem to be a hair better. It does sometimes take 2 trys to start however, especially when cold. Also, with these types of parts, is it ok to get the off brand( non gm? Or am I being anal. Thanks much!
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I love ur vids! Always informing! I just bought a 2003 lesabre with 98, 000 miles. Exellant condition! Runs awesome but idling about 600 or 700rpm. I thought thats a hair to low. Doesn't stall and no codes or lights. Would it be wise to just replace map, maf and air intake sensor as preventive maintenance? Can I just blow some mass air flow cleaner in the mass air flow sensor? These parts are not to expensive anyways. I did clean the iac valve with carb cln and it does seem to be a hair better. It does sometimes take 2 trys to start however, especially when cold. Also, with these types of parts, is it ok to get the off brand( non gm? Or am I being anal. Thanks much!
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John
I had a driveability problem on my 2000 LeSabre 3800. Flat on acceleration, backfiring yet idled. Drove it until it was operating temp before it set a code P0101 MAF Sensor. The advice I removed was to unplug it and see if the problem resolves. I removed it and blew on it (not recommended) figuring what could it hurt; it's not working. Reset the light, cleared the codes until I can get a can of MAF sensor cleaner and a new Air filter. Once you remove the intake boot, take out the metal screen and spray it with Carb cleaner. Wipe all the passages and the air filter box before reassembly.
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I had a driveability problem on my 2000 LeSabre 3800. Flat on acceleration, backfiring yet idled. Drove it until it was operating temp before it set a code P0101 MAF Sensor. The advice I removed was to unplug it and see if the problem resolves. I removed it and blew on it (not recommended) figuring what could it hurt; it's not working. Reset the light, cleared the codes until I can get a can of MAF sensor cleaner and a new Air filter. Once you remove the intake boot, take out the metal screen and spray it with Carb cleaner. Wipe all the passages and the air filter box before reassembly.
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roadstar499
I have the PO102 on my chevy blazer. i unplugged Maf and it runs much better, but still is sluggesh low power. but stopped bucking and hesitation. I ordered a new Maf from china off of ebay and it made no difference and still get this P0102 code. i have checked fuel pressure, replaced fuel filter, new timing chain. motor idles perfect sounds tight and smooth. is there a way to test MAF sensors to make sure they are good or bad. could the cheap 25 brand new MAF sensors be bad versus 75 one at autozone? anyone have any idea how i can solve this issue. thax
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I have the PO102 on my chevy blazer. i unplugged Maf and it runs much better, but still is sluggesh low power. but stopped bucking and hesitation. I ordered a new Maf from china off of ebay and it made no difference and still get this P0102 code. i have checked fuel pressure, replaced fuel filter, new timing chain. motor idles perfect sounds tight and smooth. is there a way to test MAF sensors to make sure they are good or bad. could the cheap 25 brand new MAF sensors be bad versus 75 one at autozone? anyone have any idea how i can solve this issue. thax
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Matthew
So i have a similar vehicle im working on. Thats got me stumped eric. 05 pontiac grand am. Mass sensor keeps shorting out. Have put three in there in the same day. All short out. I have 12v signal and a good ground. Yellow wire 5v is there. The power runs to the fuse box to fuse 10a with is a shared fuse with ignition. There is also an ignition code on in scan tool. Could the ignition be causing the problem or should i look else where. Kinda at my wits end with the car now.
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So i have a similar vehicle im working on. Thats got me stumped eric. 05 pontiac grand am. Mass sensor keeps shorting out. Have put three in there in the same day. All short out. I have 12v signal and a good ground. Yellow wire 5v is there. The power runs to the fuse box to fuse 10a with is a shared fuse with ignition. There is also an ignition code on in scan tool. Could the ignition be causing the problem or should i look else where. Kinda at my wits end with the car now.
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lamfilipos
Cheers for the Video clip! Sorry for butting in, I am interested in your opinion. Have you considered - Trentvorty Safe Vehicle Theorem (erm, check it on google should be there? It is a smashing one of a kind guide for discovering how to repair your car the simple way minus the normal expense. Ive heard some decent things about it and my m8 got cool success with it.
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Cheers for the Video clip! Sorry for butting in, I am interested in your opinion. Have you considered - Trentvorty Safe Vehicle Theorem (erm, check it on google should be there? It is a smashing one of a kind guide for discovering how to repair your car the simple way minus the normal expense. Ive heard some decent things about it and my m8 got cool success with it.
reply
Steve
I currently have a Buick but I have used Dormin Products on Dodges I had in the past with great results. now days the car makers almost kill You for using any after market I want to thank the entire after market manufacturing for keeping Me up and going the past 20 years of commuting Iam almost done in a year or two no benefits though. just glad to be alive. !
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I currently have a Buick but I have used Dormin Products on Dodges I had in the past with great results. now days the car makers almost kill You for using any after market I want to thank the entire after market manufacturing for keeping Me up and going the past 20 years of commuting Iam almost done in a year or two no benefits though. just glad to be alive. !
reply
Kenneth
NO disrespect to that lady but DAMN that power steering is about to explode. I could barely hear Eric O over all that whining noise from that pump. She might want to save up some Social Security checks and get that fixed. And that noise is without even turning the wheel! Lol
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NO disrespect to that lady but DAMN that power steering is about to explode. I could barely hear Eric O over all that whining noise from that pump. She might want to save up some Social Security checks and get that fixed. And that noise is without even turning the wheel! Lol
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Jerry
My Buick 3. 8 the RPMs jump up when I'm driving down the highway then go back down doesn't happen that often so what could that be? I think it's the transmission if someone could give me an idea or two to go off of it would be greatly appreciated thanks
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My Buick 3. 8 the RPMs jump up when I'm driving down the highway then go back down doesn't happen that often so what could that be? I think it's the transmission if someone could give me an idea or two to go off of it would be greatly appreciated thanks
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