1997 Buick Lesabre Repair Question
Buick Lesabre Spark Problem
Use a gage and check fuel pressure. Did you visually check for spark at the plugs, engine cranking? Did you check for spark at more than one spark plug, engine cranking? Engine cranking, do you have injector pulse? What about security system?
Used the pressure tester from Auto-Zone for the new fuel pump. Tested only one plug. engine cranks. How do you check injector pulse? Do not think it is security system since it was running and the just stopped.
If your system lost battery voltage, it could have went into theft lock? You could use a noid lite to check fuel injector pulse. The autostore sells noid lites. You could probably use an led testlite between voltage and ground at the injector electrical connector.
Car stopped running on the freeway. Pulled over and it turned over but did not start. Going to get test light.
Noid light came on and the second spark plug is working. How bright should the spark be? I could see the spark but it was not very bright. This was during the day.
The noid lite should pulse.
the light turned on and off as the car cranked over,
Some possibilities, contaminated fuel-- Issue with tps sensor or circuit-- Egr system-- check coolant temp sensor--- restricted exhaust--- check idle air system and check for vacuum leak--- check map and maf where applicable--- check pcv system--- Do a compression test, if you haven't already.