Knock in 1st gear

[xveganxcowboyx]

Completely lacking in tuning hardware right now. Just bought an evo 8 fuel pump and injectors. Will be looking for an AFC right away. Until then....

I don't think this has anything to do with tuning though. It just started recently without any major changes. I mention the O2, because it does it at partial throttle as well, when the O2 actually means something to the ecu.

Unless I'm running rediculously lean I think it's a false reading, because it starts at anything above 0psi or even slightly in vacuum.


It's also worth mentioning that my mileage dropped about 5-6mpg around the same time, but I think that's just due to pulled timing.

[94talonawd]

It would help if you tell us what has been done to your car.

Have you tried diagnosting it yourself first? What all did you check already?