Quote:
Originally Posted by steve shadows
The afc is going to throw everything off on our cars. It's a hot wire maf so it's very dependent on having the correct voltage and resistance down the line to the ECU to feed back the right fuel input to the motor.
I would also check for vacuum leaks. This will cause a lean condition in lower throttle conditions but not so much under load as the FPR loads up and sprays more pressure behind the injectors under load.
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so obviously the afc is questionable considering there are mixed reviews right now lol, also if that were true under load then why at part throttle boost is it still in the 16's and 17's?
what would i need to do to pull codes off this j4 ecu, if it doesnt have a cel light screw?
i have a fuel lab fpr that im going to be putting on next week hopefully, that might help, but i do have an safc coming in as well.. ive been thinking that maybe the resistence becomes a bit much under heat and the injectors arent firing at the correct duty cycle? idk im probably thinking way to far into it.