My Red Hondoo Has A P0128 (and it's not the thermostat)
video description
Date: 2020-08-05
Related videos
Comments and reviews: 10
autos
A thermistor is essentially a substance that changes resistance as temperature changes. And a sudden loss in reading can generally be traced to the connections opening up at specific temperatures/humidity level. Other factors that can cause failure are openings of the shell of the thermistor where moisture can infiltrate and alter the thermistor's chemical substance thereby causing failure. Generally though, such infiltration/failure will not be short lived. That leaves connections as the most likely culprit. I'd check the connector(s) first ahead of condemning the thermistor.
reply
A thermistor is essentially a substance that changes resistance as temperature changes. And a sudden loss in reading can generally be traced to the connections opening up at specific temperatures/humidity level. Other factors that can cause failure are openings of the shell of the thermistor where moisture can infiltrate and alter the thermistor's chemical substance thereby causing failure. Generally though, such infiltration/failure will not be short lived. That leaves connections as the most likely culprit. I'd check the connector(s) first ahead of condemning the thermistor.
reply
Feeney's
Last week I had a PO128 code on a 06 chevy impala. Temp gauge was on the money at like 206 degrees. The outside temperature was 58 degrees Fahrenheit. But the iat sensor was reading 115 degrees Fahrenheit. Unplugged the maf sensor and it dropped to -40. Ordered a new maf sensor and plugged it in before installation. It read 65 degrees. Which was good enough for the chics I run with. Install maf sensor cleared code and shipped
reply
Last week I had a PO128 code on a 06 chevy impala. Temp gauge was on the money at like 206 degrees. The outside temperature was 58 degrees Fahrenheit. But the iat sensor was reading 115 degrees Fahrenheit. Unplugged the maf sensor and it dropped to -40. Ordered a new maf sensor and plugged it in before installation. It read 65 degrees. Which was good enough for the chics I run with. Install maf sensor cleared code and shipped
reply
Strahinja
as far as i know it could indicate these possible problems leaking or stuck open thermostat, low engine coolant level, insufficient warm up time, faulty engine coolant temperature sensor, engine coolant temperature sensor harness is open or shorted, or engine coolant temperature sensor circuit poor electrical connection
reply
as far as i know it could indicate these possible problems leaking or stuck open thermostat, low engine coolant level, insufficient warm up time, faulty engine coolant temperature sensor, engine coolant temperature sensor harness is open or shorted, or engine coolant temperature sensor circuit poor electrical connection
reply
Breanne
never caught on why u call it hondoo. it seems like a negative name when in my experience they're the most reliable and what breaks in them is less expensive to repair. ive never had blown head gaskets in hondas. every ford ive owned always resulted in at least one blown head gaskets even with recommended maintenance.
reply
never caught on why u call it hondoo. it seems like a negative name when in my experience they're the most reliable and what breaks in them is less expensive to repair. ive never had blown head gaskets in hondas. every ford ive owned always resulted in at least one blown head gaskets even with recommended maintenance.
reply
GNX157
Back in the late 80s and early 90s had a few of these, and much tougher to catch and diagnose since we didn't have the graphing or the ffd to look at. Mostly is was a digital readout of live stream data and if you weren't watching closing, sometime you'd miss the drops or spikes.
reply
Back in the late 80s and early 90s had a few of these, and much tougher to catch and diagnose since we didn't have the graphing or the ffd to look at. Mostly is was a digital readout of live stream data and if you weren't watching closing, sometime you'd miss the drops or spikes.
reply
Mike
COOL ENDING! Good tech tip about testing the CTS system VS using the parts cannon, starting with the t'stat. Sometimes OBDII Generic testing gets results. I don't know what tester you used, but the software layout is a lot like the Matco MaxMe. Is that a Launch Diagnostic tablet?
reply
COOL ENDING! Good tech tip about testing the CTS system VS using the parts cannon, starting with the t'stat. Sometimes OBDII Generic testing gets results. I don't know what tester you used, but the software layout is a lot like the Matco MaxMe. Is that a Launch Diagnostic tablet?
reply
Robert
Whatever happened to the engine teardown/rebuild/swap? We go from 3 out 4 bad cylinders and massive blow by to driving home with a wonky coolant temp gauge. Was looking forward to fix of your own car.
reply
Whatever happened to the engine teardown/rebuild/swap? We go from 3 out 4 bad cylinders and massive blow by to driving home with a wonky coolant temp gauge. Was looking forward to fix of your own car.
reply
Peter
Very interesting issue - as always.
BUT - what happened with the engine on the Hondoo? You went from head gasket and possible rings to programming a key fob and adding tuner lights in the trunk.
reply
Very interesting issue - as always.
BUT - what happened with the engine on the Hondoo? You went from head gasket and possible rings to programming a key fob and adding tuner lights in the trunk.
reply
Randy
had a dodge neon setting code for high and low coolant temp it happend at 178f it was bad ecm. not the same as you but you need to now what scale computer changes readings
reply
had a dodge neon setting code for high and low coolant temp it happend at 178f it was bad ecm. not the same as you but you need to now what scale computer changes readings
reply
Adam
Nice catch! I'm glad you brought up the dual stage ECTs. If a tech has never seen 1 in action before, it'll really make them think something is wrong, when it's not.
reply
Nice catch! I'm glad you brought up the dual stage ECTs. If a tech has never seen 1 in action before, it'll really make them think something is wrong, when it's not.
reply
Add a review, comment
Other channel videos
