Where is my MAP?

[creekfreak]

And EBP sensors? 95. I have had a problem losing power on grades. Now if my MAP is faulty and i unplug it i should see little to no change in performance correct?

[backwoodsboy]

Unplugging the MAP sensor won't do anything for you on grades. It will give you a little more go off the line, but won't do anything for top end. Disconnecting it causes PCM to use a default value, which is somewhere in the middle of boost range. Higher MAP value will give you more fuel at first. Downside of this is the PCM needs to see boost to increase fuel at high RPM's.
Replacing it might solve your problem. Eliminating it won't.

[creekfreak]

Yeah I got that, I was thinking that if it was defective that I would not see a change in performance because its already running at that default value....no? So back to the original question....where do i find it on this rig?

[backwoodsboy]

It's possible that disconecting it will give you a performance increase. This means the sensor is bad, and giving PCM a false low.

[creekfreak]

Originally Posted by backwoodsboy

It's possible that disconecting it will give you a performance increase. This means the sensor is bad, and giving PCM a false low.

Thanks for the beta..... But wtf is it located lol?????

[jesilvas]

He posted a pic

[1Dieselman]

Map sensor is on firewall above passenger side valve cover with a hose going to it

[creekfreak]

Originally Posted by jesilvas

He posted a pic

Yeah ive been trying to edit that post as I just saw it...... Stupid iPhone.........

[1Dieselman]

Picture is a super duty anyways. close but no cigar

[creekfreak]

Ok so above and to the left of the p side valve cover and to the left of the tranny dip stick? There's a hose running to something from near the valley and there is a wiring harness with 3 wires..... Zat it?