Quote:
Originally Posted by corkscrew
Timing will definitely do that too. Happened on my sr when I had a broken knock sensor
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Knock usually retards timing/dumps fuel?
Boost leak = rich in boost
If the car is running fine but wideband is reading lean make sure you manifold isn't cracked and that your downpipe is seated/not leaking..
Then I'd start with fueling basics. I didn't see you say fuel filter was replaced. Verify pump pressure. You're sure it's a real Tomei FPR? Those were known for being knocked off.
CA is top feed? You can remove the injectors and buy a syringe, discard the plunger, stick a carb cleaner hose into the syringe nozzle/outlet and heat shrink it in place. Stick the injector in the other end. Have a friend pulse the injector while you spray carb clean through it. Only pulse them quick though don't hold them, use a resistor if necessary (I'm super unfamiliar with CA's)