2207 Non turbo 2.5
So still fighting the P0171 DTC. Repairs so far:
Plugs and wires (fixed misfire DTC)
New air intake as it was leaking smoke with smoke machine hooked up (Someone put wood screws into it since baffle inside came loose)
New upstream O2 sensor
2 new MAF/IAT sensors (original had corrosion on wires and capacitor)
This fixed the issue for ~9 months. Then started again. Looks like cheap MAF replacement had cracked/broken wires to capacitor. Replaced with better brand. Was great for ~6 months. Cleaned as I thought maybe hi flow air filter was depositing oil on it (even though it is a non oiled element) Still getting code. Car starts hard and stumbles after sitting for 30+ minutes. Wondering if I have an injector leaking into cylinder. No misfire DTCs. Guess I need to check fuel pressure at key off and see if it dissipates. Any other suggestions???
Scott
So still fighting the P0171 DTC. Repairs so far:
Plugs and wires (fixed misfire DTC)
New air intake as it was leaking smoke with smoke machine hooked up (Someone put wood screws into it since baffle inside came loose)
New upstream O2 sensor
2 new MAF/IAT sensors (original had corrosion on wires and capacitor)
This fixed the issue for ~9 months. Then started again. Looks like cheap MAF replacement had cracked/broken wires to capacitor. Replaced with better brand. Was great for ~6 months. Cleaned as I thought maybe hi flow air filter was depositing oil on it (even though it is a non oiled element) Still getting code. Car starts hard and stumbles after sitting for 30+ minutes. Wondering if I have an injector leaking into cylinder. No misfire DTCs. Guess I need to check fuel pressure at key off and see if it dissipates. Any other suggestions???
Scott
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