High RPM between shifts

[ryan2009]

2002 3.8 68k Car runs great and idles good. I replaced IAC and it still has hi RPM. I have not checked the TPS yet for idle V. It should be .5 to 1V , is that correct? I ran the car with IAC disconnected and it did not do it. Any help would be GREAT Thanks.

 

[NYstang]

how high RPM? what exactly is it doing?

clean the MAF, or it may be an IMRC problem.

 

[ryan2009]

Thanks for the reply. The RPM will stay at 2 or 3K if you are in first or second gear. I checked the idle V on the TPS it was ok .7V . I have not cleaned the MAF yet. Thanks for the help.

 

[ryan2009]

Thanks for the help I have been working way to much. The MAF is clean, I checked the IMRC and it works and has no codes. The gromets are good 2. I checked the stop idle and set it at 500 w/IAC off. Still NG. The car runs to good for a vac leak and it is not lean.

 

[stangman1995gt]

Auto im taking it? OverDrive stuck on?

 

[marcom]

I used to have the same problem on my 01 v6. I found that the MAF sensor gets dirty and causes this issue, especially due to oil coming off my K/N filter. Here is what i have to do once a year to keep it under control.


1. disconnect your negative battery terminal.
2. buy a can of electronics cleaner, take the MAF out of the car, and spray the MAF sensor heavily to make sure you get it thoroughly clean.
3. let everything sit for a while to make sure the ECU resets, and that the MAF dries out.
4. reconnect everything and your cars rpm should no longer hang up between shifts.