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View Full Version : Pulling code 77 1990 XR7



90redsc
09-03-2017, 11:49 AM
What part might this be?

KMT
09-03-2017, 12:27 PM
Nothing - that code is simply a complaint by the system during testing/code reading that the process wasn't followed correctly - at the point where you're supposed to give it full throttle, it means to the floor...goose the heck out of it - put your foot in it - don't be shy. Otherwise, you'll get a fail/code 77 & not collect all the info available.

When pulling codes (always a good thing), be sure the engine is fully warmed up, full throttle, 1/2 turn on the steering wheel wheel, and hard on the brakes when indicated.

See: http://www.njtacc.com/tech/eec_codes.html

90redsc
09-03-2017, 01:34 PM
Thanks you very much