hey guys new to this site..ran the codes off my truck and iam getting that the EVP Sensor has under minmum voltage to it...what does this mean n how can i fix it? thanks!


-1995 f150 4.9l

 

any takers?!?!?

 

The EGR is a VALVE.


The EVP is a SENSOR reading the position of the valve in the EGR.

IT (the EVP) needs a certain minumum voltage to operate.

YOUR EVP is below that voltage. Check the connections to the EVP - clean the connections and reassemble. Start there. OR replace the EVP & EGR

 

that sensor (if its the one i am thinking of) can be disassembled and cleaned. someone correct me if im wrong but thats the one by the coil with the electrical harness and the 2 vacuum lines.
mine was dirty, i disassembled and cleaned it and it ran alot better and didnt have an idle surge anymore.

 

shoulda posted that my egr and evp sensor are both brand new...you think the connector to the evp sensor is bad?

 

Start w/ running KOEO, & specify as active or continuous memory codes & state the actual code number(s).https://www.f150forum.com/f10/heads-...05/#post623219

 

Ok, I will. Position Senor ---------->
You're refering to the EGR Regulator.

 

i did state in my orginal post that i did run codes and the problem but if it changes anything...here

code-327 active

i get the same code koeo/koer

 

I've seen this happen on aftermarket (non-mororcraft) replacement EVP sensors. What was yours? Were you getting this code before you replaced it?

However, here's some other possibilities: http://www.fordfuelinjection.com/?p=35

 

it was a knock off one like standard motors or something...i wasnt getting this code before....

i notice my egr wasnt openng or doing anything so i replaced the egr n decided just to replace the evp...

the egr is durlast from autozone

i thought changing the egr would solve my missing sound at low rpms but that didnt happen