alternator voltage
Hotshot
Joined: Apr 2010
Posts: 19,056
Likes: 235
From: Saratoga Springs,UT
Basicaly IAT2 is a temp sensor in the intake manafold
the PCM will monitor it to verify operation of EGR Valve
IAT2= Intake Air Tempiture 2
IAT1 is with the MAF sensor right after the Air filter
the PCM will monitor it to verify operation of EGR Valve
IAT2= Intake Air Tempiture 2
IAT1 is with the MAF sensor right after the Air filter
Fleet Owner
Joined: Nov 2003
Posts: 27,893
Likes: 3,611
You have electrical issues, sensor issues, control module issues. I know the batteries are fairly new, but I would load test them just the same. I would also probably have the alternators tested - just to be sure.
IMO - you need to start tackling them or take it into the dealership. I would start w/ the cheap and easy-to-do code (like IAT2), do the FICM repair, and then see what codes you still have. Swapping out with known good parts is a good strategy also. Then, if you still have injector codes, replace them.
IMO - you need to start tackling them or take it into the dealership. I would start w/ the cheap and easy-to-do code (like IAT2), do the FICM repair, and then see what codes you still have. Swapping out with known good parts is a good strategy also. Then, if you still have injector codes, replace them.
Hotshot
Joined: Apr 2010
Posts: 19,056
Likes: 235
From: Saratoga Springs,UT
It could have some affect on your issue
If its not reporting a change in temp as the EGR Valve opens then the PCM might not think egr valve is opening and then in turn opening the EGR Valve to much causing it to run Poor and powerless.
But like Mark said its a electrical code so its a bad sensor or short in the wire harness maybe not plugged in fulley. So check it out and if nothing stands out replace it
You have a Ton of codes so gotta start somwhere as I think that you have Multiple Problems going on here Time to start ruling things out
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Mountain Pass
Joined: May 2011
Posts: 222
Likes: 11
From: Strasburg,CO
2500rpm HPOP/1601.1 PSI
IPR/38.7 & MAP/136 that's all I got I need to get a new obd2 wireless monitor, the on I have now has a problem and can't keep up with the truck.
IPR/38.7 & MAP/136 that's all I got I need to get a new obd2 wireless monitor, the on I have now has a problem and can't keep up with the truck.
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Hotshot
Joined: Apr 2010
Posts: 19,056
Likes: 235
From: Saratoga Springs,UT
The P0098 for IAT2 is a electrical code for the sensor or wirire harness issue itself not from the EGR Deleate
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