rpm nidle jumping

[possessedimports]

i have a 91 integra with a jdm b16 in it and last night i was driving on the parkway and when i looked at my tachometer i seen it jumping.it didnt have any effect on the way the car was driving. what can make that happen

 

[All Show]

Vacuum leak? Not sure but that is my guess.

 

[dmxbmx]

ive had that happen plenty of times...i can recally driving down rt 46 and having that happen...check all the vacume lines and even check your sensors...i had a sensor fall out once and the idle bounced

 

[liquid00meth]

how is your clutch?

 

[brian11to1]

He said it didnt effect the way his car ran, so it has to be Electronic correct? If not then Im lost, sorry if I confused everyone

 

[Iquark]

Did you hear the engine changing RPMs, or was it just the needle that was bouncing?

 

[5th gen civic]

is your car N/A?

 

[hybrid89]

Almost garaunteed that it is one of your ignitor conections inside the distributor. Rip the cap of the distro and check all the connections.

 

[Cashizslick]

Originally posted by possessedimports@Sep 13 2003, 07:21 PM
i have a 91 integra with a jdm b16 in it and last night i was driving on the parkway and when i looked at my tachometer i seen it jumping.it didnt have any effect on the way the car was driving. what can make that happen

The same thing happened to me, i replaced the igniter in my distributor and the problem was fixed.

 

[possessedimports]

where s that and yesturday i was on the highway and i seen it jumping again. it starts around 3500 and stops 4500.