1989 Buick Century Catalytic Converter/Oxygen Sensor/Spark

205,023 MILES • 6 CYL • FWD • AUTOMATIC
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RANDIWINIARSKI1983
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  • 3 POSTS
I have a problem with my car, I was driving yesterday when it began to sputter and tried to stall, I applied the gas to it and it stopped. I went to the auto parts store for some oil and coolant, tried to start it up and had to crank it over six times. It would stay running for about three seconds or so. I got it home, after the Service Engine Soon light came on. And opened the hood up, unplugged the spark plug wires, re attached them all, and started up, the light then went out for about five minutes. I idled the motor back up and the car acted like it was gonna stall out again, I got out and all i could smell was raw gas in the exhaust. Then today we check the spark plugs out again. Unplugged the spark plug wire from the bottom of the front of the motor, and the car stayed running, all the others when unplugged made it stall out. Any suggestions? This vehicle is a 1989 Buick Century Custom 3.3L V6 Motor, with 205,000 miles on it. Please help.
Apr 24, 2008 at 1:51 PM
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LEGITIMATE007
  • ✓Experienced Mechanic
  • 5,121 POSTS
first , lets check fuel pressure
go here:

https://www.2carpros.com/car_repair_video/test_fuel_injection_pressure.htm
Apr 26, 2008 at 6:57 AM
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RANDIWINIARSKI1983
  • MEMBER
  • 3 POSTS
I checked the fuel pressure and it all seems to be okay. What else could it be.
Apr 26, 2008 at 10:57 AM
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LEGITIMATE007
  • ✓Experienced Mechanic
  • 5,121 POSTS
ok lets make sure you are getting good spark.
go here for an easy way to check
Apr 26, 2008 at 2:22 PM
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LEGITIMATE007
  • ✓Experienced Mechanic
  • 5,121 POSTS
https://www.2carpros.com/car_repair_video/test_engine_ignition_system.htm

check your ignition/spark here
Apr 26, 2008 at 2:22 PM
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