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1998 Chevrolet Cavalier wont start

Tiny
MICHELLE39
  • MEMBER
  • 1998 CHEVROLET CAVALIER
  • 2.2L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 200,283 MILES
My car wont start and is backfiring through throttle body. I already checked the timing. I replaced the crank sensor. I replaced the ignition control module and coil. I checked the plugs and wires and they are firing. If I spray starting fluid in the throttle body it back fires and catches fire. What could be the problem. I'm lost and don't know what else to look for.
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Monday, June 22nd, 2015 AT 4:34 PM

9 Replies

Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
How did you check timing? It sounds like its out of time like the chain tensioner is bad and jumped.
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Tuesday, June 23rd, 2015 AT 7:13 AM
Tiny
MICHELLE39
  • MEMBER
  • 5 POSTS
Yes I already said I checked the timing. That was the first thing I did. It's not the timing.
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Tuesday, June 23rd, 2015 AT 9:02 AM
Tiny
MICHELLE39
  • MEMBER
  • 5 POSTS
My dad and I opened it up and checked the timing. Gears and chain are fine and timing marks are on point.
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Tuesday, June 23rd, 2015 AT 9:05 AM
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Thank you that's what I needed to know. I read that you checked didn't say how. Now I would like to know if you unplugged the mass air flow sensor and tried to start it, if not please do if it starts it won't have any throttle response I just need to know if it will start ok.
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Tuesday, June 23rd, 2015 AT 9:15 PM
Tiny
MICHELLE39
  • MEMBER
  • 5 POSTS
Where is the mass air flow sensor. I don't think it has one.
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Tuesday, June 23rd, 2015 AT 9:25 PM
Tiny
MICHELLE39
  • MEMBER
  • 5 POSTS
I checked and it doesn't have a mass air flow sensor.
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Tuesday, June 23rd, 2015 AT 10:05 PM
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Ok didn't think it did but don't have the car ok then. I will do some research and see what I can figure out to do next. Have you done any tune up stuff? For some reason its not timing correctly so do you have a digital multi meter? I think we need to do some pin tests on the computer.
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Tuesday, June 23rd, 2015 AT 10:09 PM
Tiny
MICHELLE39
  • MEMBER
  • 5 POSTS
No I do not. But every light on the dash is on. The last thing we did to it was a few months ago and we put a new head gasket in it and it ran fine til a couple weeks ago
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Tuesday, June 23rd, 2015 AT 10:14 PM
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
So that means the engine light is on, would you get me those codes so I can go through them and see if any make sense to the problem so we can figure this out? In the mean time I will go through things and see what I can find ok. Thanks
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Wednesday, June 24th, 2015 AT 7:00 AM

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