I have a broken wire some in the main harness. I dont think it is at the connectors cause I have wiggled them but no change. Its one of the wires that run from the cam position sensor to the ecu. Now my question is, are there any specific place on the main harness where it's likely to have broken?

Other wise I'm must run a new wire from ecu to cmps, but that probably is not a nice job....

 

Need more info dude, is the car not running? missing, stumbling? intermittent stalling issues?

??

It is highly unlikely that a wire simply broke inside the main harness without some outside help, like a motor swap(pinched the harness) or a major accident.

 

The car have a bit of a stumble under acceleration. Pulled codes and got 11- cmps. Disconnected the cmps plug, disconnected the ecu plug and tested for continuety, and it is open circuit on the 1 degree signal wire. The 120 degree signal wire is fine.

No motor swap or anything. But now that you mentioned that, my car got a new cam belt not so long ago at a place where I normally took my car. When I got it back, the was a bad noise. took it back and it was the belt was not tensioned correctly. then when got it back my distributor cap cover was broken. Maybe the idoit pulled and bent my harness with the work.

 

Maybe the rtardy pulled the cable, then wire is probably broken at distr. Follow the wire/color half meter towards ECU, open the harness, push a needle into the wire like a student nurse and test continuity in both directions...

New wire isnt too bad either if its not a fashion birdie.

 

If wiring looks in good shape, (inspect the harness carefully) if no breaks in the harness, i would look at the cmps itself being faulty.

 

I have opened a bit of the harness. The cmps wires run inside a braided ground shield tube cover in insulation that that in turn is in the main harness. thus it's not possible to poke it. the shield runs from cmps plug to ecu.

Like i said, I know the wire is broken somewhere. plus I replace the cmps few weeks ago, and the sensor is working, I tested it yesterday.


I'm also thinking that maybe(long shot) when my cmps got screwed it somehow screwed the wires too.

 

That wont block the test.

The shield is like a net: take small (real tiny) screwdriver, poke inside the mesh and push sideways in all directions. Now u see the signal wire via the created hole. Poke now a needle through the plastic jacket of the wire, or gouge first the wire out from the mesh shielding (for better handling). You may also cut the mesh and/or the wire as necessary...

Later solder them together maybe using extra bits of wire (Dont worry how the mesh looks, I guess nobody will know even if shield remains totally disconnected). Tape it closed, use first self vulcanizing rubber tape.

 

This information would have been helpful in your original post.


It's remotely possible it may have shorted/burned out the harness wiring, but yeah, a long shot for sure.

Question, was the car doing the exact same thing before you replaced the cmps?