> > coil? ECU? It could even be a bad contact in the ignition switch itself > > -- I've had that happen to me, and the exhaust would bang so loud, > > people were diving for cover :-) Try wriggling all the connectors while > > the car is idling. > > A bad ignition switch caused backfiring?? How did u determine this? What
Well, if the engine is running under load and open throttle, and the ignition cuts out momentarily, it's going to flood the exhaust with a lot of unburned fuel. Then when the ignition cuts back in... BOOM! At idle, you would just notice a bit of a stumble, because there's very little fuel going in. Now that I'm recalling details, I've realized that my oil & temp lights would start flashing (like they do when you tun on the ignition) whenever it happened, which led me to suspect the switch. So if your lights don't flash, then forget the switch... I'd still look for a loose contact somewhere. > tests did u use? I would think a bad ignition switch would cause > backfiring on a regular basis while the car is running, depending on where > the keys swayed to. Was this the case w/u? Or did u just get one and that > was it? It was very occasional for a few weeks, then slowly deteorated... What you say is quite reasonable, but in my experience, VW electrical gremlins are not reasonable creatures. Cheers, Oleg _____________ List Sponsor: http://www.netsville.com To remove yourself from this list, send mail to [email protected] with 'unsubscribe a2_16v' in the body of your message See us on the web at http://www.a2-16v.com Visit the 16V Homepage at http://www.gti16v.org
