1990 Dodge Dynasty 6 cyl Front Wheel Drive Automatic 48000 miles
When started, engine (3.3 V6) dies after running 1-2 seconds. If I use some starting fluid or pour some gas in the intake, the engine will run for 3 or 4 seconds. I don't get any useful codes from the check engine light, only a " 55", which is " end of message". When I use starting fluid or pour gas in the intake, I have monitored the injectors with a noid light and I can see the injectors quit firing after 1-2 seconds, but spark firing continues as the engine runs for 3 or 4 seconds as the engine burns off the starting fluid or poured-in gas. Therefore, it seems the loss of injector signal is causing the engine to die. What faulty sensors would cause the engine control module to terminate the injector signal but still allow the spark signal to continue? Fuel pressure at the rail is ok and engine vacuum appears ok during the short run period. I have bypassed the Auto Shutdown relay and the problem is the same. This LE model does not appear to have the Anti-theft system.
Friday, July 24th, 2009 AT 3:31 PM