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Old 03-30-2014, 08:46 PM #1
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97 4Runner ECU/ECM wiring diagram/PIN diagram
Hello all,

Im searching the net with no recent luck on finding this diagram to install a piggy back unit onto my truck.

Does anyone have a ECU/ECM diagram that you have used to install a piggy back unit such as an FTC 1, AFC/SAFC/SAFCII/NEO onto your truck to tune?

Thanks in advance to whomever can assist.


Last edited by Dawgz; 03-30-2014 at 08:48 PM.
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Old 03-30-2014, 09:15 PM #2
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Here ya go!

http://www.mr2.com/files/mr2/techinf...Runner-ECU.pdf

http://www.mr2.com/files/mr2/techinf...%204Runner.pdf
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Old 03-30-2014, 11:26 PM #3
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Thanks!
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Old 03-20-2021, 03:16 PM #4
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Thank you!
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Old 02-19-2023, 11:07 PM #5
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ECU diagram
I've got a 97 3.4L manual trans, I'm trying to find a pin diagram for the ECU because I'm pretty sure one of the wires going to my IAC valve is bad but I don't know which ones to test. I tried the links that were posted but they won't open. Any idea where to go to try and find it?
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Old 02-20-2023, 03:04 PM #6
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Quote:
Originally Posted by Ianburns8 View Post
I've got a 97 3.4L manual trans, I'm trying to find a pin diagram for the ECU because I'm pretty sure one of the wires going to my IAC valve is bad but I don't know which ones to test. I tried the links that were posted but they won't open. Any idea where to go to try and find it?
If all else fails, you can get temp membership to the Toyota TIS system and download the wiring diagrams in question...

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