XFI/solenoid/knock sensors

TurboDetroit

Member
Joined
Jul 15, 2012
few questions here. I have a standalone TPI fast harness, not using an adapter. To those running a similar setup:

I have a MAC 3 port solenoid, where did you wire this to?

Are you guys using the factory knock sensor and where did you wire this up to?
 
Answered my own question. Pin c8 is for boost control on the xfi. But can I get a more clean description of the knock retard sensor?
 
Knock sensor is wired using factory knock module. It has 4 wires. Pink/blk is 12 volt, black/ white wire is ground, blue goes to sensor, yellow goes to xfi on the FP, Fan, ESC plug near the ecu

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Knock sensor is wired using factory knock module. It has 4 wires. Pink/blk is 12 volt, black/ white wire is ground, blue goes to sensor, yellow goes to xfi on the FP, Fan, ESC plug near the ecu

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Your the man thank you...
 
Thanks from me as well, can anyone tell me which wire goes to which pin on the esc? Some dummy threw away the original harness connector lol....
To confirm, knock out of the esc into c8 boost wire on the xfi? The yellow wire you mentioned Cal, is on B10 on the xfi labeled fan. (No Caspers here on my LS project). Thanks
 
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No, most of what you said is incorrect. C8 is for boost control not knock.
If you're using a FAST stand alone harness, the yellow esc wire goes to XFI pin A9 , which is on the same connector as the fan and fuel pump output labeled FP/ FAN/ ESC. You want to use the black wire in pin location C of the connector

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Thanks Cal, trying to keep everything straight on my solid grey universal harness.....
 
So I've found out that I'm far from a wiring guru lol. I'm running a magnafuel 750 and I'm not sure if I should run it to the fuse bulkhead c100 or the computer or both?
 
So I've found out that I'm far from a wiring guru lol. I'm running a magnafuel 750 and I'm not sure if I should run it to the fuse bulkhead c100 or the computer or both?
Run it off a relay triggered by the computer

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