sorry about the caps. well i have this problem with my ecu codes I DON'T HAVE ANY?? i have this wicked hesitation i was told by bonzaitoyota to read the codes to see what was up but i don't have any?? would that mean my ecu is dead or fudged up at least obviously not dead since the car runs. would this be the problem not to long ago i blew my main fuse on the engine block since the car ran after i replaced it i didn't think anything of it but this is realy perpelxing me. any advice from the gallery?

 

Do S4s even retain codes in the ECU?

 

No, the series four does not retain codes. It has no memory atall. Put your light assy on and turn the key to on. Pull the tps plug off or the boost sensor plug off. You will get codes. Darn, I don't remember if the engine has to be running or not, right now.

 

Engine ABSOLUTELY has to be running. And it needs to be running for a few minuites (IE fully warmed up). Then you should start generating codes if any. I seriously doubt that the ECU is going to flag anything if your only symptom is hesitation. Sounds like an injector/ground problem.

Rat

 

thanks guys