Causes of erratic idle on carbed car
Posted: Wed May 13, 2009 6:00 am1. Vac leaks 2. Leaking EGR or plugged PVC valve 3.Air filter plugged 4. Low fuel pres. 5. Carb out of adjustment 6. Leaking head gasket 7. Timing belt worn out ( out of adjustment ) 8. Camshaft lubes worn This info from a Haynes service manual. Also check out....http://www.aa1car.com/library/carburetor.htm