Madwolf sent me another PCM and all the cold start hesitation I had before is gone, but the SES light was still on. and it is not related to the PCM. Now I have narrowed it down. There is a fuse in the underhood fuse/relay box entitled engine sensor that keeps blowing. What does this power. I looked up from underneath last night and it appears that my passenger side O2 sensor wires may be kinked pretty good against the heat sheild. If one of these wires rubbed through and is touching or grounding out would it cause the fuse to blow? I am going to check it out a little more when I get home tonight.

TIA

 

If you have a short in the O2 wiring it would cause the fuse to blow.

 

That is what I figured. The car runs great though so that is what threw me. Guess I will be laying under there tonight. for a while.



Thanks a ton

 

Did this situation get resolved? I have the same problem.

 

Yes it was the wires on the O2 sensors rubbing the heat sheild and shorting out. Seems the headers put the O2 sensor too close to the body so the heat sheild had to be removed to accomodate.

No more blown fuses or SES light since this.

Hope this helps
Good luck with yours
John