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Engine Management, Fuel, Spark, EGTs, and Air/Fuel Ratios This forum includes general electrical, modification, tuning, repair, replacement, identification and restoration of all components mentioned above including SMEC, SBEC, Logic Modules, aftermarket engine management, etc. Nitrous oxide posts go in here. This is the place

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Old 01-27-2013, 05:40 PM   #1
Fuel injector wiring harness  
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Hello all TDer's. I tore my car apart to do a rebuild. Now its time to put it back together and I'm not 100% certain on the sequence for the fuel injector wiring harness.

I notice each injector connector on the harness is numbered (1-4), but its impossible to install them to the matching corresponding cylinder because the wiring isnt long enough.

I need to know what number injector connector connects to what particular cylinders' injector.

Thanks in advance peeps.
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Old 01-27-2013, 07:18 PM   #2
Re: Fuel injector wiring harness  
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The wiring came off the car and it should go right back on. You can't really plug the connector into the wrong injector as there is barely long enough for each injector.

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Old 01-27-2013, 07:22 PM   #3
Re: Fuel injector wiring harness  
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Thank you for the response but, I don't want to assume how it was before is correct (I bought the car on the verge of death).

Additionally, it is possible to hook it up a couple different ways with the amount of wire in the factory harness...
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Old 01-28-2013, 08:19 AM   #4
Re: Fuel injector wiring harness  
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The injectors are fired in batches 1/2 and 3/4.
As tryingbe stated the "factory" harness injector connectors when wired correctly will only reach to the individual injector it is supposed to connect to but....
If someone repaired the harness and made the wiring longer....
I rebuilt my injector harness with all new pigtails but made the new pigtails about the same length as the factory then soldered them in.

PM being sent with wiring.



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Old 01-28-2013, 10:49 AM   #5
Re: Fuel injector wiring harness  
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Old 01-28-2013, 05:11 PM   #6
Re: Fuel injector wiring harness  
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Harness definetely appears to be "factory".

Where does it ground exactly??
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