I keep getting this damn code 43 **** and its really making me angry, but i think its a small part of the whole problem. I seem to have three, possibly related, problems.
#1. SOMETIMES the car wont start. I can hold it with gas, but it wont idle. If I hold it for a minute, and restart, everything is fine. No light.
#2. The car knocks, audibly, on occasion. Most often when giving it gas at low RPM (1500ish) in OD and also at around 3000 when getting frisky. No light. I hear it, and get the hell off the gas. I use 93.
#3. The light. I punch it from about 25mph and when it hits 3000-3500 rpm the light comes on. Code 43. Power gone (tire roast test, not too noticable otherwise but real power loss). I rev the car in neutral to 5000, light goes off, power still gone. Im left clueless.

It also has a tendency to backfire at low rpms, usually when the engine is cold, but I doubt this is unsusal.

Its an L98 to the best of my knowledge.

I dont know if these problems are related or not, but i surely have no clue whats going on except that it isint right. I have access to a scanner computer if need be. Please help me.

 

Habib,

Start looking at your knock sensor, sensor wiring, and ESC connections.