Hi
Just finished my throttle body cleaning.........I took it apart , cleaned it , put a new gasket for it then returned every thing back in position perfectly....(TB butterfly was very dirty in the back of it)

Car now is with better response , jumpier than before ........But I am always suspicious about my car and always feel I missed some thing,I can't tell wether there is an air leak from the area of TB (or its new gasket) or not !!! seemed leaking when pressing the gas pedal and rev 1.5k to 2K rpm ? but afterwards , I accused myself of being paranoid
and everything is noraml ....
How can I judge there is a leak or not ?
1-Any air leak can cause CEL to light ? (it was off before the cleaning , still off now after cleaning......no problem so far about any CEL)
2-Maybe the IDLE with be higher ? (the idle is exactly like before the cleaning)
3-Leave everything and start enjoying the bit of improvment after TB cleaning ?

thanks

 

A vac leak after the MAF can cause a code, yes. It may or may not, however.

The idle would most likely be less stable, and higher.

Why do you assume there's some sort of vac leak?

 

I thought that there is a leak from the new TB gasket althought I installed it fine........How can I test that area ?

And is it possible that it leaks only when the RPM is 1400 and up ??? or it will leak all the way when the engine running ?

 

bump

 

Again, why do you assume there's a vac leak? Are you getting any sort of symptoms, or is it ESP? You never clarified.

A leak is a leak, it's going to be present whether or not you're at 1400 RPM.

Search, you'll see how to test with many things; smoke, brake parts cleaner, propane, etc.

 

we've entered a dimension not of sight nor sound, but of mind....the twilight zone!!!
or dementsia