P0107

[Walcott]

trouble code surfaced today P0107,translated to low voltage in map circut. I figured map sensor was bad and replaced, well didn't do the trick. So my question is where do i go from here?

 

[WalterJ]

Walcott; What did u do to fix P0107?

 

[Prairie Dog]

I see you have an 03, we had problems early on with the connectors at the ECM allowing moisture to get in and cause corrosion. I would remove them both and check for anything nasty as that would certainly cause your low signal amplitude. If there's nothing there and the wires are good to the sensor, then there's a good chance the ECM has suffered a failure. Hopefully someone else has another idea.

 

[Walcott]

CLeaned sensor and contacts,also replaced apps.

 

[LNaugle]

Is it possible a boost fooler is wired in your truck and it going bad?

 

[WalterJ]

Yes, I too replaced the sensor at the air cleaner box. A local dealer said the code remains in memory for 40 engine starts, so he cleared my memory & I was on my way.

P. S. I also coated the contacts with some dielectric grease I carry.