hi i have a vauxhall astra 2.0 16v 1990 red top engine the problem i have is this the car idles up and down also there is a flat spot on pull away and the car misses back i have replaced the tps the crank sensor and tried different air mm also i changed the coil leads plugs and idle valve and ignition module even changed the distributor can you help please
harry at harrymarlowe1@fsmail.net, September 2007