no spark and will not start

1992 OLDSMOBILE 88
187,000 MILES • 6 CYL • FWD • AUTOMATIC
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HUSKYMAN
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  • 2 POSTS
my car told me to replace the throttle position sensor and the camshaft sensor because they were bad. i did, and the codes went away, but it still has no spark and wont start. what could still be wrong?
Oct 11, 2016 at 4:37 AM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
it could be the crank sensor or maybe the ignition module which auto parts can test. crank sensor should have 900-1200 ohms. also, if tachometer has gone bad if you have one will not let it start. it is normally the white wire.
Oct 11, 2016 at 5:43 AM
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HUSKYMAN
  • MEMBER
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the crankshaft sensor is six months old, but i was getting ready to look at here quick. the tachometer thing you said to check is completely new. have not seen that answer at all going to check now. thanks a lot bro.
Oct 11, 2016 at 5:49 AM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
also, check for a bad map sensor as that can cause it as well.
Oct 11, 2016 at 6:59 AM
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