fuel injector wiring harness

[dirtymike]

Ran into an issue with the wiring harness for the fuel injector,s. A lot of breaks and frayed wires have been found. The question now is a replacement available or can these connectors be rebuilt. Dirty

 

[adsm08]

The connectors themselves are easy to get and widely available.

A whole replacement harness will not be available new, but would not be terribly hard to build if you had all the connectors and the correct diagrams.

 

[dirtymike]

Any recommended source

 

[adsm08]

I believe BWD makes the fuel injector connectors, which may be the same as the SPOUT connector. They should also have the IAT connector. The IAC connector is shared with quite a few Fords. I'm not 100% sure where to source new connectors for the main harness connection, the EGR, or the TFI.

 

[dirtymike]

Well I got the injector harness fixed without to much fuss. The wire is a bit hard to solder. There are three wires for it. Brown,brown with black strip and a black one. The black Is common to all six injectors. I believe this to be ground (-). It was broke at the main connector. Its a wonder it ran at all. Dirty

 

[adsm08]

The common line is power. The computer will ground the brown wires to fire the two batches of injectors.

 

[dirtymike]

I don't know how this thing ran. I must have broke all the way when I removed it. It had rust build up in the fuel rail and the screens in the injectors were packed full. Dirty

 

[adsm08]

Rust build up in the raid clogging the injectors is a common thing to run into on the 2.9s. It was common enough before E10. The ethanol just makes it worse.

 

[dirtymike]

When I install the injectors in the manifold and the fuel do I need to lubricate them (o ring) or is it a compression fit. Looked though the manual and nothing is mentioned. Dirty

 

[adsm08]

You need to lubricate them. My preferred choices are PAG oil and WD-40 in that order. They will lube the seals, won't swell the rubber, and won't clog the injector or foul plugs.

 

[dirtymike]

I finished the injectors, The PAG oil worked perfect. They slipped right in. Now for all the sensors and EGR system. Dirty