Check engine light is on--code reader displays codes $7EA and $7E8, but states no codes are stored.
SOURCE: Check engine light is on, reduced power displayed on dash, code P2122 and code P2127 comes up
its a problem with the pedal and throttle position corilation
Testimonial: "Thanks, I replaced the throttle positioning sensor (had to buy a whole new gas pedal as the sensor is in the pedal. Pretty easy fix, two 10 mm bolts and used a small screw driver to release the wiring harness. Replaced in about 10 mins. "
SOURCE: PCM Troubleshooting Check light on with no code reader power
You can't jump the connector to get codes on OBD II. (Pre 1996) Try hooking back up you code reader. If it doesn't communicate, check the fuse for the cig lighter. This fuse should also power up the diagnostic plug.
SOURCE: 2005 Chevrolet Equinox OEM Radio/CD Player bypass
Unless you have the code you have to go to the dealer to get it reset
SOURCE: Service engine code indicates EGR valve.
You could have a restriction in the egr ports. remove the valve. Plug the holes, start engine. 1 hole will be blowing out exhaust, the other will have large vacuum.
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