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it is located under the passenger side dash. it has a red and white and blue connector. first remove the plastic hush pad and it is visable. the squeeze each tab on each connector and slide the pcm out.
right next to the emergency flasher It is a white three prong connector
under the glove box,white connector,rectangle
look toward the back of your engine (jack the front end up and crawl under you can't see them from above) look on you passenger side it will should be white with a green wire running to it
Pontiac sunbird-92-up-2.0l-white wire pin A6@ECU(smaller blue connector)
You can start by starting a dialogue with the gentleman at www.78ta.com He has a good help section, has links to companies that sell literature on the subject, white papers on the Pontiac 400, and is open to direct questions.
There is a junction box under the dash. It's a white thing with connectors plugging into it. Just to the left of the brake,clutch pedal. You'll see a bunch of wires containing three green and two white wires. Unplug and check that connector for looking burnt. If burnt you'll need to replace the connector and the junction box. Seems to be fairly common in these cars.
Under the dashboard on the drivers side, it is on the right side of that space. It is typically off white in color.
Check the under hood sticker for the gap specifications. They are usually white.
remove the headlight housing, its only the two bolts on top of the housing, and the turn signal is the white connector, twist it closkwise and pull it straight out, the bulb is a 3157
a white connector underneath the steering wheel
behide the consor *** EDIT *** Under the dash, drivers side almost all the way against the side of the car, tucked up next to the fuse box. It's a white connector.