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05 legacy gt stumble/hard on gas no codes


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  • 4 weeks later...

pops at idle runs super rich and afr spikes from 14.3 to 13.5. Thinking I got a bad injector on cyl 4 as the plug is black new plug and coil,  as my oil level has risen and is thinned so amybe one is leaking / oring are new . only thing i am stumped about is when I unplug the Ovcs or the Tvgs I get no DTC ? Can someone confirm the voltage at harness for the ocvs an tgvs thanks { and no I was not just unplugging things, I changed out the ovcs for new ones and started the car and forgot to plug them in ran rough but never got a code. And the Tgvs well I was just testing them to see if the flapper wasnt stuck by powering it directly with a power supply

Edited by LegacyLGT05
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