Quote:
Originally Posted by thesauce
I've read that o2 sensor isn't always caught in ECU diagnostics, perhaps try replacing it? Should only be a few bucks and one less thing to troubleshoot down the road.
Vac leaks can cause the MAF to tell ECU to dump fuel and can adversely affect your AFRs depending on the severity of the leak, look into those next!
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And as far as the leaks i've done alot to make sure that there aren't any behind the intake mani or in the engine bay as i've had the car for 3-4 years now and i'm a perfectionist lol. The hoses near the EGR valve and on the back of the intake mani are old but none seem to be leaking any air.
Yeah, when i cranked it it smelled like gas. It has to be something simple because i'd be getting a code if it was a sensor for the most part like you said. But i did notice the 02 sensor when unplugged made the car run better and with it plugged in it didnt run at all.