Camshaft sensor

Tiny
JOYFIXER
  • MEMBER
  • 2001 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 204,000 MILES
How does a person check a cam position sensor?
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Friday, April 8th, 2011 AT 1:11 PM

11 Replies

Tiny
JDL
  • EXPERT
I'd start by checking ref voltage--ground--signal at the sensor. Any applicable trouble codes? What makes you think there is a problem with cam sensor?
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Friday, April 8th, 2011 AT 1:33 PM
Tiny
JOYFIXER
  • MEMBER
When I changed the distributor I forgot to plug in the electrical plug going to the distributor. My car started with a miss. Then remembering I did'nt plug it, I then pluged it in, and ther ws no difference in the way it ran, it still missed.
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Friday, April 8th, 2011 AT 1:43 PM
Tiny
JDL
  • EXPERT
Terminal c should be 12 volts, key on.
Terminal A is ground.
Terminal B is signal, dc pulse, on and off.
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Friday, April 8th, 2011 AT 1:54 PM
Tiny
JOYFIXER
  • MEMBER
Thanks JDL I will check volts and let you know the results. By the way I got codes P0200 & P341. Thanks again
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Friday, April 8th, 2011 AT 2:05 PM
Tiny
JDL
  • EXPERT
The po341 is for your cam sensor. Was the vehicle missing, before you worked on the distributor?

The po200, says the computer didn't see correct voltage on command line. The command line is a ground. You could have an injector issue?
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Friday, April 8th, 2011 AT 2:28 PM
Tiny
JOYFIXER
  • MEMBER
Yes JDL that is what I was told, hopefully I dont have to go there. Thank again, you have been most helpfull.
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Friday, April 8th, 2011 AT 2:51 PM
Tiny
JDL
  • EXPERT
Let us know what you find.
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Friday, April 8th, 2011 AT 3:58 PM
Tiny
JOYFIXER
  • MEMBER
JDL Problem solved, changed the cam sensor, don't have the miss I had before, have a slight miss but thats due to a plug wire or vacuum hose. Thank you all again so much. Joyfixer
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Friday, April 8th, 2011 AT 4:02 PM
Tiny
JDL
  • EXPERT
Glad you got it going your way.
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Friday, April 8th, 2011 AT 4:14 PM
Tiny
WRENCHTECH
  • EXPERT
Are you getting a P1345 code at all.
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Friday, April 8th, 2011 AT 4:16 PM
Tiny
JOYFIXER
  • MEMBER
No I'am not getting any codes now.
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Friday, April 8th, 2011 AT 4:18 PM

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