Hey org peeps! I want to let you guys know that a friend of mine and I have just fixed a problem that I've had for about 2 months now. I'm sure we all have read the threads about the loss in power while acceleration as well as the "coughing" sound when idle. There have been many suggestions about replacing the fuel filter, cleaning the throttle body, sparks plugs, fuel coils, etc. Well I had this problem and I replaced the fuel filter, pumped a higher octane gas and used fuel injector cleaner, and needless to say none of these worked at all. The car still had the problems after all of these. Well, I took it to a shop and he said that it threw the code for the thottle body sensors and that they may need replacing, also he said that it may be a fuel coil. Well tonight My boy and I decided to clean more. I'm here to tell people that if you have this problem, cleaning the throttle body may not help. We took off the entire throttle body and we cleaned the entrance to the intake manifold as well as the throttle body again. When I took it for a test spin the rough idle was gone, and when I floored it there was no lag at all. With the problem I could floor it but feel a tremendous lag, now it's gone. My advice to people is to clean more than the throttle body and clean out the intake manifold as well, it helped me, hope this can help some other people as well.

-Geoff

 

Cleaning the t-body alone does VERY little. If you are having idle problems, along with cleaning the t-body, you should clean the IACV. And the proper way to do that is to draw an intake cleaner through the vaccuum of the idle before the IACV.

To clean the rest of the intake, the running engine should be injesting the cleaner. After running a good amount through the t-body with the engine running, shut the car down, and let the cleaner sit for about 20 minutes. This gives the solvents (primarily toluene) time to dissolve the varnishes and carbon build up. Then start the car up, drive the car gently just to suck any pre combustion chamber solvent through, then change the oil because some of the cleaner will have made it past the piston rings.

If you don't think this works, take a scope and check the intake manifold before and after. Also, look at the combustion chamber through the spark plug hole before and after.