Listen to what the ecu is telling you, your MAF is malfunctioning. You can test it with a multimeter, but if its throwing a code and its running like that, its a safe bet that's the problem. Plus the IAT sensor is an integral part of the MAF.
Only other thing I can think of is a clogged cat.
You said you have 2 turbo supras, so swap out the MAF.
Did you set base ignition timing to 10 degrees BTDC? Do you know how to disable the electronic advance to be able to set base ignition timing? If not, just ask I'd be more than happy to assist you.
Slight knock under load eh? *Cough* rod bearings....*Cough*
Last edited by IHateHacks; 04-30-2007 at 12:54 AM.
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