'00 GT PCM readout

Take it back to autozone & tell them to clear the codes :P. Some "code readers" (no buttons, just reads codes) require that you cycle through the codes 4-5 times and then it'll clear the codes. That's how mine works. Picked it up off eBay for around $40.

-Mike

-- A happy kid behind the wheel of a 98 Mustang GT Cold air intake FRPP 3.73 gears Steeda Tri-Ax Shifter Full Boar turbo mufflers Hi-speed fan switch

You can reset the PCM by disconnecting the battery, then turning on the headlights and pressing the brake pedal (while the battery is disconnected) for about 30 seconds. This drains the power in the system and resets the DTC storage in the PCM.

Dan

Or, if the gas cap is sealing properly and there is no leak in the system you can ignore it. The code will clear itself after the appropriate drive cycles have completed.

Thanks for all the suggestions. Hopefully, it is not a real issue.

I just had my '00 GT inspected (105K miles) and the gas cap failed emissions (I watched.) The tester commented that the style used seems to fail frequently as they replace several...the '89's 15 yo cap passed so there may be a grain of truth in this.

bradtx

I did this and it worked. The light has not come back on. Thanks for the tip.

Musty.