Hi. I posted a couple of months ago that a wiring harness on my D2 came in contact with the exhaust manifold, and started a small fire. It was quickly extinguished, and I’ve had the wiring fixed, as well as a new alternator and battery that were shot. Everything seems to be working, but the engine isn’t running quite as smoothly post-fire, missing or hesitating occasionally upon acceleration. I also have a few codes that won’t go away once I read/reset them:

62 Cannister purge valve fault
60 Purge cannister vent valve / DMTL power stage fault
73 MAF sensor fault
70 Camshaft sensor fault / valve timing error

i should mention that I read these with my Foxwell scanner so the code numbers may be funky...

The latter seems like a likely culprit for the hesitation. Seems to me I had an issue with this camshaft sensor in the distant past - is that the sensor that’s such a bear to get to and can cause the truck to shut off intermittently?

The others may be due to discharging a dry chemical fire extinguisher under the hood. Even though these modern extinguishers are supposed to be safe for electrical components, I am skeptical. Any ideas?

Thanks,

DRW

 

What part of the harness got burned? Have any pics? What is a 'small' fire? Was the knock sensor wiring damaged?