My 99 sl1 seems to have a miss at idle. I have changed plugs,wires,coil and cleaned T body. Has no noticable power loss. Most noticable when it is warmed up and rpms drop. No service engine light has come on. Any help would be great.

 

Intake gasket. Spray carb cleaner on the intake gasket and listen for RPM change. they usually fold and leak between cyl 1 and 2.

 

Thank you i will try that

 

Hey that was it. Now to r & r an intake gasket. Thanks a bunch for the insight.