RPM pausing @1000rpm's when down shifting...

[Fried One]

Thank you for posting,
I will try cleaning out the cylindrical sensor on the side of the throttle body and see if it helps. GettoPop you mentioned the IAC ... am not fimiliar ? What does it stand for?I have a 92 lx and I believe the TB is coated with a special coating and it needs to be cleaned a special way.Are any of you familiar with this? Hethj7 my car never use to do this before. I have had a few instances where my rpms would rev up while driving I think it would be idling at 1500rpm. I would have to pull over ,pop the hood. I would check the tps (not loose) ...eventually I would shut down the motor and it would start up and idle normally. So since it did that I now have this annoying rpm drop and stick. Gonna clean out that sensor and see. Thanks.

[GhettoPop]

Originally Posted by Fried One

Thank you for posting,
I will try cleaning out the cylindrical sensor on the side of the throttle body and see if it helps. GettoPop you mentioned the IAC ... am not fimiliar ? What does it stand for?I have a 92 lx and I believe the TB is coated with a special coating and it needs to be cleaned a special way.Are any of you familiar with this?

IAC = IAB = the thing cylinder attached to the throttle body

as far as the protective coating, i always use GUMOUT TB cleaner, works great on TB and IAC. some people say not to harm the protective coating since spray cleaners may/will remove these coatings. u know what, if the TB is gummed up the coating is obviously not working! use a rag soaked in cleaner and clean the crap out of it, then run the car and spray some more in there to get the hard to reach areas, especially where the where the moving parts are.

i would also clean the MAF with some electrical contact cleaner, some use TB cleaner as well, but i have only used elec contact cleaner.all in all, I am fairly sure your TPS is your problem.

http://www.corral.net/tech/maintenance/idlereset.html