Idle is reving up then going down constantly any ideas?

Bigmeech45

New Member
ok first off i did an oil change on my 95 dx hatch before i did the oil change it wasnt smoking after i did the oil change it smokes when reving id say about 4/10 smoke. I just added my new catalytic converter on my car and started it up it was idling fine and smoking on rev i did a little test drive all was good when i got back to the house and let the car idle it would go up down up down any ideas? would this be related to possible smoke coming out of exhaust? also my check engine light came on
 

RonJ

Banned
Pull the CEL code and clean both the IACV and FITV.
 


TheJuan&Only

New Member
RPM going up and down problem

Had this same problem. Was very annoying. I have a 92 lx Sedan. I cleaned out my IACV, put a new fuel filter, and cleaned out my injectors, because I thought at first this was a fuel problem. Turned out, it was my distributor. Got a brand new distributor, and car runs great, and car never had the idle or rpm problem again.
 


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