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Subject A Note on pin 58 in certain EFI Harnesses
     
Posted by mjm0771 on May 23, 2008 at 7:46 AM
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In Reply To The simplest mod so far... switched power injector rewire. posted by NobleZ on December 21, 2006 at 10:54 AM
     
Message Hi everyone,
I recently replaced my EFI harness in my 91 TTZ. I followed this writeup, but when I broke open the pouch next to the ECU, I could not find the bundle of injector wires on pin 58. There was only a single 12 gauge wire joined to a 18 - 20 gauge wire that went to pin 58.
HOWEVER,
I found the injector wire bundle on the other side of the Harness! It looks exactly like the one near the ECU side.
To be absolutely sure that was it, I measured Volts when the car was off (you should get +12V)
then I disconnected the #1 injector connector and tested continuity between the connector and the bundle.
I did this to eliminate any doubt.
See pics below.

I ended up using a relay, but I'm sure you can route a wire back through the firewall to pin 45.
-mike

     
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