1995 Oldsmobile Achieva Engine Light, Code 77

1995 OLDSMOBILE ACHIEVA
70,000 MILES • 6 CYL • FWD • AUTOMATIC
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ACSACHIEVA
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  • 1 POST
Hello,
Below 60mph the engine light does not come on. Above, it comes on and trips a code 77.
I replaced the EGR, replaced the tube, reset by disconnecting the battery, then through dealer.

It still triggers the code and can not figure it out.
Feb 27, 2009 at 1:19 AM
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BILLYMAC
  • CERTIFIED EXPERT
  • 2,204 POSTS
do you have vacum at the egr valve when you accell
Feb 28, 2009 at 8:19 PM