I have been chasing a Check Engine light and Auto Stop/Start issue. It has a P0175 code. Aux battery was changed less than 4 month ago. It has a 3.6L Engine. I had injectors and gaskets changed out. We've replaced the purge canister solenoid and the pipe that feeds it, the vacuum pump, the MAF sensor. This is crazy. A smoke test didn't help much. Does anyone have any ideas? I did take it to a Dodge Service department but that did not help much either. Thank you for any assistance.
2016 Dodge Durango Citadel
MarionDawg
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I have been chasing a Check Engine light and Auto Stop/Start issue. It has a P0175 code. Aux battery was changed less than 4 month ago. It has a 3.6L Engine. I had injectors and gaskets changed out. We've replaced the purge canister solenoid and the pipe that feeds it, the vacuum pump, the MAF sensor. This is crazy. A smoke test didn't help much. Does anyone have any ideas? I did take it to a Dodge Service department but that did not help much either. Thank you for any assistance.
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EDITED: Misread the the OP.... Anyway,
What is the battery voltage when idling? Should see between 14 ~ 14.5VDC.
What is the 5V buss voltage?
Try a PCM reset and 20 minute 're-learn' to see if the code goes away on it's own.
Maybe bank2's O2 sensor?
Check the throttle position sensor voltage. If it's more than 0.9 volts with throttle closed, it's suspect.
Fuel pressure may be too high (pressure regulator).
Air filter, air box, or intake clogged anywhere?
Leaving the towels in the intake ports when reassembling (hate to admit this, but I've done that myself on an outboard motor once).
That's about all I can think of at the moment, that wouldn't ALSO throw a misfire code.
What is the battery voltage when idling? Should see between 14 ~ 14.5VDC.
What is the 5V buss voltage?
Try a PCM reset and 20 minute 're-learn' to see if the code goes away on it's own.
Maybe bank2's O2 sensor?
Check the throttle position sensor voltage. If it's more than 0.9 volts with throttle closed, it's suspect.
Fuel pressure may be too high (pressure regulator).
Air filter, air box, or intake clogged anywhere?
Leaving the towels in the intake ports when reassembling (hate to admit this, but I've done that myself on an outboard motor once).
That's about all I can think of at the moment, that wouldn't ALSO throw a misfire code.
We found ours in a suspect leaking evap hose at the engine. But that only fixed an evap code. You're start/stop issue is separate.
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