Possible cause:

I was driving and ran over debris at freeway speeds causing the left front tire to slam up into the wheel well.

This rubbed a hole through the liner and 6 wires in the chassis harness (one of the wires is a littler thicker than the other wires).

Symptoms:

Driver side window not working
ABS light went off
Airbag light went off

Engine was firing on one side. It appears that one of the coils that supply power to a rotor is not working and the unburnt gas was ignited by the main cat. This caused a blue torch-like effect at the Cat-back.

Repairs:

I managed to solder and wrap up the damaged wires.

The window works, ABS and airbag light is not tripping anymore.

However, the engine issue still remains.

Any idea on where else I should check?

Fuses?

Coils fried?

Or is this a coincidence that my 230k miles engine harness might have gone bad at impact?

I have the replacement engine harness, but not the chassis harness.

I like to see what other steps I could take to resolve this issue.

Thanks in advance.

BATMAN

 

Silent here......... hope my problems don't stump the smartest of members

 

id start with the simplest diagnosis first, being fuses. Check the wires with a voltimeter to ensure that they are within specs. Then if those check out, try the coils. Thats what i would do first before suspecting the entire harness going bad just by coincidence

-Zach

 

Definitely part of the ignition harness to ECU wiring path.

This route takes the driver-side harness in the bay, and then connects through the driver side portion of the firewall then heads towards the ECU.

A better mod is one Chuck Westbrook pointed out a long time ago which is to run a shorter direct path between the CAS/Igniter/Coils/etc. instead of taking a 12 ft through the car route - which is unnecessary.

 

got a link for that?

 

Nope. It requires an FSM and some shielded wire. It's not that hard to do.