|
| Search | Car Forums | Gallery | Articles | Helper | Air Dried Fresh Beef Dog Food | IgorSushko.com | Corporate |
|
|||||||
| Problem Diagnosis Got a problem you can't fix? Post here and one of our members will answer as soon as possible. |
 |
 Show Printable Version | 
Subscribe to this Thread
|
|
|
Thread Tools |
|
#1
10-05-2006, 09:35 PM
|
|||
|
|||
|
What is MAT ?
After putting on a new water pump and thermostat my check engine light comes on while ideling. It goes off after I get up to speed but comes back on if I stop and idle for a few minutes. I hooked up a code reader and it said " 25 MAT is too high". Someone said it means "manifold air temp" but I'm not sure. Any help would be appreciated.
__________________
94 Firebird: 3.4L 220,000 mi 95 Blazer: LS 2DR/2WD 210,000 mi 96 Trans Port: work in progress 97 Silverado 4X4 Ex/cab: 200,000 mi 05 Malibu: 98K mi 08 Chevy Van: Direct TV work van 
|
|
#2
10-05-2006, 10:00 PM
|
||||
|
||||
|
Re: What is MAT ?
25 – Intake Air Temperature (IAT) sensor or circuit – high temperature indicated - Inlet air temperature sensor signal showed an air temperature of over 218? F for 5 seconds when vehicle speed was greater than 35 MPH.
__________________
2000 Chevy Blazer ZR2 Performance Mods: Numerous Suspension Mods: Some, but not enough Exterior Mods: Just Right 1987 Buick Turbo T Dark Red Low 11 sec sleeper  .030 4.1 block, PT6262E, & other odds and ends.... My Cardomain
|
|
#3
10-06-2006, 12:00 AM
|
||||
|
||||
|
Re: What is MAT ?
Just had this occur with mine.
Just replug in the connector going to the air temperature sensor under the intake just before it enters the engine. You remember to plug that sensor in? Plug it in or remove and reattach. Then clear the codes and see if it some back.
__________________
1995 Factory Blazer Service Manual for sale, PM if interested.
|
|
#4
10-06-2006, 03:19 AM
|
|||
|
|||
|
Re: What is MAT ?
Thanks, oh yeah..... I forgot my serpetine belt did come off and shattered that sensor and I had to replace it. The orginal one was plastic and replacing it with another plastic one was $52, but the guy at O'Rielly's found a brass one for $12.99. I cleared the code when I scanned it so it should not be coming back on, at least not for that.
__________________
94 Firebird: 3.4L 220,000 mi 95 Blazer: LS 2DR/2WD 210,000 mi 96 Trans Port: work in progress 97 Silverado 4X4 Ex/cab: 200,000 mi 05 Malibu: 98K mi 08 Chevy Van: Direct TV work van
|
|
#5
10-06-2006, 10:27 PM
|
||||
|
||||
|
Re: What is MAT ?
Huh?
what sensor are you talking about? The one on the bottom of the intake pipe? It cost me 13 bucks to replace here at the dealer.
__________________
1995 Factory Blazer Service Manual for sale, PM if interested.
|
|
#6
10-07-2006, 11:19 AM
|
|||
|
|||
|
Re: What is MAT ?
It's the one on the bottom of the intake pipe that measures the air temp going into the intake. The oem was black plastic but the new one was brass.
__________________
94 Firebird: 3.4L 220,000 mi 95 Blazer: LS 2DR/2WD 210,000 mi 96 Trans Port: work in progress 97 Silverado 4X4 Ex/cab: 200,000 mi 05 Malibu: 98K mi 08 Chevy Van: Direct TV work van
|
|
#7
10-07-2006, 11:48 AM
|
||||
|
||||
|
Re: What is MAT ?
Quote:
Ohm out the wires a coulpe of feet back to plugin. They make rewire plugin kits. MT
__________________
Remember proper testing gives us the answer to many problems. MT
|
|
|
POST REPLY TO THIS THREAD |
 |
|
|
