randomly high idle

[88ComancheMitch]

I thought I had this fixed. I had thought it was a vacuum leak. When I replaced the header, intake etc the problem ceased.

 

 

Three times now I've gotten in the truck, after driving it, and experienced high idle around 1700 rpm.

 

My first thought it tps. When I replaced the throttle body we were testing the tps, and would randomly get high voltage readings in one position of the tps lever. Would this cause a high idle? If not, any ideas?

 

 

Thanks

Mitch

[88ComancheMitch]

So, I just picked up the wiring harness that runs parallel with the valve cover and idle went to normal. Any ideas?

[88whitemanche]

Do you have the c101?

[88ComancheMitch]

Yea. I have yet to clean it properly. Could this cause it?

[88whitemanche]

Yes...

Could also be the ground wires that they have crimped together that could not be tight enough....

You can also do the c101 delete which helped me with my comanche....

[cruiser54]

Post 27 in my tips.

 

Have you ever done post 5? 

[88ComancheMitch]

Post 27 in my tips.

 

Have you ever done post 5?

 

I thought so. But I can do it again to make sure.

[cruiser54]

I would.