OK. Here's the deal. A couple weeks ago, I did a much needed tune-up to the S. I did the oil, filter, air filter, and cleaned the throttle body and intake manifold with the proper cleaner for fuel injected engines. I also used fuel injector cleaner from lucasoil and dropped 2 tanks of 94 octane from Sunuco in it. My CEL has been on ever since. I tried resetting the ECU 3 times. I did the MAP whack twice. I had my neighbor hook up his computer. It said something about a secondary air flow? I can't remember the code it threw out. Anyways he reset the CEL, but like an hour and a half later the light came back on. Also my car still idles eratically sometimes, like today when I started it, it idled so hard for about 15 secs, the whole car shook. This is starting to upset me, and I'm ready to destroy the car. I need some help asap. Please, any help would be so greatly appreciated. Other than that, my car runs fine.

 

Post the Code #, then we can help

 

OK. I did some more researching on this lovely site, just to see what I could find. I did find this one tiny little hose unhooked ( how that happened, i have no idea). I hooked it back up. Now, if I reset my ECU,and the light goes out, will it stay out if this hose had anything to do with it? I double checked every single hose to make sure they were all hooked up. Also, could this have affected my idle?

 

Want a job?

Think you found it. Reset the ECU. If the light stays out, you fixed it

 

sure. i bet it would be better than the job i have now. and yes i did reset the ECU

 

dont you always put premium in?

 

i usually use 93 octane. people have told me sunoco 94 is actually 96 octane