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Whats wrong with my Z28?

Tiny
CO-Z28
  • MEMBER
  • 1994 CHEVROLET CAMARO
  • 193,000 MILES
Hi my name is Gary, I have a 1994 Chevy camaro with a 5.7L v8 automatic. I have an issue where the engine has no power and it backfires at high RPM and shakes a little when at a light. Parts I have changed: coil, optispark, spark plugs, fuel filter. A mechanic told me my "right bank was running rich" but said my o2 sensors are working fine. It would be great if you guys could help me. I love this car and would hate to get rid of it.
Thanks Gary.
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Thursday, July 19th, 2012 AT 3:22 AM

2 Replies

Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
I DID NOT SEE PLUG WIRES LISTED

COULD IT BE RANDOM MISFIRES CAUSING THE RICHNESS?

YOUR CAR IS OBD I....PROBABLY WOULD NOT ALERT YOU OF MISFIRES?

SEE MY ANSWER IN THIS POST

https://www.2carpros.com/questions/1997-ford-mustang-vibration-that-feel-seat-accelerate-slowly-between-60-80-km

RETURN WITH GOOD NEWS

THE MEDIC
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Thursday, July 19th, 2012 AT 3:32 AM
Tiny
CO-Z28
  • MEMBER
  • 2 POSTS
Hello again I have replaced the plug wires and the problem is still there. But now it seems to run like that after it warms up. Any ideas?
Thanks and hope to hear from you soon.
Gary
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Saturday, July 21st, 2012 AT 5:04 AM

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