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No or very erratic engine acceleration, cannot drive the car

Tiny
I'MPATIENT
  • MEMBER
  • 2001 CHEVROLET BLAZER
  • 4.3L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
My wife’s car will start but skips very bad, engine RPM all over the place and if you hit the throttle the rpm hand hits 6000 back and forth to idle. The code reader gave 6 codes B0036 U1096, C0237, C0265, P0335, P0341. I changed the camshaft and the crankshaft sensors with no difference in the problem. What do you think is the problem?
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Saturday, March 25th, 2017 AT 2:24 AM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check connections on crank sensor like bent pins or shorted wires. For cam sensor do same but make sure routing of harness is not near coil wires as that screws it up. There is no code U1036 C0236 is rear speed sensor for abs. It can be a bad connection at pcm/vbm ther rear speed sensor is on the trans maybe or on top of diff case. Last one is air bag code make sure battery is disconnected an dwait a 20 minutes at least so you dont' explode air bags.
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Saturday, March 25th, 2017 AT 6:44 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
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Saturday, March 25th, 2017 AT 6:46 AM

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