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Old 04-13-2018, 08:11 PM   #6
unicoder
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When you had it wired backwards, how much driving did you do that way? How long was it wired backwards?

You can fry the ECU if its hooked up backwards. (dont freak out. I had mine wired backwards a whole hour and it was fine after switching it back)

Hook the maf up, and crank the car, force your multimeter prong in the back of the plug connector where the harness goes in and make sure you are getting 12v and 0-5v on the correct wires. Do the same to test your grounds

Make sure your chassis ground is done correctly.

TIP: I soldered mine and it was cold, so although it was stuck together it didnt work. ended up just using crimp connectors and heat shrink tubing and it started working.
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