Hello, I have a 1999 Prelude thats I'm having problem with... It has a JDM H22A in it with a cold air intake and header. Its like when ever I go onto the freeway my car starts sputtering and everytime I let off the gas it starts to jump, it does it in cruise control, and also in town, but when I get off the freeway sometimes when I come to a complete stop and put it in first gear when I let the clutch out at about 1500 RPM's it starts to jump uncontrolably... It just rocks the car back and forth. I have taken my car to Honda and they just said it was the vaccum hoses.. and also to Max RPM a local shop and just spent a bunch of money for them to check it out and they found nothing. It is an intermittant problem, it only does this sometimes. Could somebody help me out here.

Thanks.

 

Man thats gonna be hard to diagnose over the net. Are you getting any CEL codes?

Anything recently done / changed to the car?

 

The check engine light does come on when it does it I'm not sure what codes, how can I find out what the codes are? Nothing has been changed recently to the car that I can recall..