1992 Cadillac won't start

Tiny
SEAN03
  • MEMBER
  • 1992 CADILLAC DEVILLE
  • 135,000 MILES
My 1992 cadillac deville wont start. I have spark and I changed out my fuel filter. The engine turns over but doesn't start. I changed out the engine control computer out last year. When I pulled it out this morning it smelled like it was burnt. Could thisbe the reason it won't start.
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Thursday, April 5th, 2012 AT 4:41 PM

3 Replies

Tiny
SATURNTECH9
  • EXPERT
Have you checked the actual fuel pressure and for injector pluse?
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Thursday, April 5th, 2012 AT 4:50 PM
Tiny
SEAN03
  • MEMBER
I checked the fuel pressure yesterday before I changed the fuel filter. It was a little above 40. Yesterday when I pressed the valve for the fuel pressure no fuel would come out. Once I changed the filter and pushed the valve fuel came out really good. So the pressure is probably better now. A friend of mine gave me his fuel pressure gauge to use yesterday. Also yesterday when the old fuel filter was on the engine wouldn't even turn over. Once I put the new fuel filter on it started to turn over. How do you check for injector pluse. My friend also came over and tried turning the crankshaft wheel with the belt on it. He turned it as if he was tighting it. When he turned it it was going good then it stopped to where it wouldn't turn anymore. He had to loosen it up as if he was taking the crankshaft pulley off. Then he took off the belt and im not sure if it seized up on it either. He checked the rotor and the distributor cap and said everything looked good their to. He also poured gas in the carberator and the engine would crank but didnt fire off.
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Thursday, April 5th, 2012 AT 6:04 PM
Tiny
SATURNTECH9
  • EXPERT
To check for injector pluse you unplug all the injectors and plug in a noid light into each injector connector one at a time. The light should never be on solid. Then when you crank the engine over the light should flash. Check every injector connector.
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Friday, April 6th, 2012 AT 2:57 AM

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