Cant get a RPM signal

[Quad150db]

Well I just bought a my first DSM a couple months ago and after only 3 months of work its running.. these cars can be a PITA!! but still fun to drive when working. I am in the middle of installing a APEXI AVCR boost controller and cant get any signal for RPM I have tapped it at ECU pin number 58 I beleave the all white one. Then after that I tried under the hood just after the fuel rail the 4th wire also all white and still no signal. Please if anyone has any suggestion let me know

 

[turboholic]

-What year is the car? if it's a 1g, there's a RPM signal connector directly behind the throttle body on the firewall, beside the one you ground to by pass the ECU for timing adjustment.

 

[Quad150db]

Its a 95 GST I also tried to tap for RPM behind the guage cluster no luck...

 

[Quad150db]

Please if anyone has any information please let me know.....

 

[luv2rallye]

ECM pin 58 should be the correct one (2nd pin in on bottom left of connector B-55). This is the one that goes to the tach. You do know that this is on the return to ground side right? So your +12 goes to your guage and the minus of the gauge goes to pin 58.