Need help with MAT sensor! - Ford Powerstroke Diesel Forum
LinkBack Thread Tools Display Modes
post #1 of 1 Old 07-28-2009, 11:32 AM Thread Starter Rookie
Join Date: Jul 2009
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Need help with MAT sensor!

I have a 2000 7.3 and it reaches a full 15 lbs of boost but feels like it's still lacking in power. I noticed that the MAT shows consistantly 65 deg F higher then every other temp sensor on the truck. Example: The other day it was 100 deg outside. The eot, trans temp, IAT and ambient air were all within 5 deg of each other. Except the MAT said it was 165 Deg. I checked with my infered thermometer and the manifold was infact 99 deg. I first disconnected it and the MAT-V read 4.6 V and then I shorted it and it read 0 v. So I'm assuming that I have just proved out the circuit right? So I changed the sensor and it still reads high. Does this mean the PCM is bad? Does anyone have a referance value for this sensor at any given temperature? I still plan on checking the circuits with my DVOM as soon as I get a chance but if anyone has any expearience with this problem please help!

kowe69 is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome