b18a1

[keith605]

I have a b18a1 in my integra and sometimes when i stop and im just ideling my rpm's jump all over its none consistant what would cause this to happen?

 

[phyregod]

Is the tach jumping or is the motor actually revving up and down/spitting?

 

[keith605]

its will be @ like 2k and drop to almost dead and just come back up to like 1.5-2k

 

[phyregod]

Sounds like you have a vacuum leak! Check that out first. After that I would suspect the IACV is faulty or dirty or disconnected. Is it throwing any codes at all?

 

[keith605]

im not sure it done happen all the time but it just started happening alot yesterday