ICP above/below desired?
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Senior User
Joined: Jun 2006
Posts: 136
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From: Gaylord, Michigan
ICP above/below desired?
On occassion when I start my truck, the check engine light comes on. So when I check it with my Edge programmer, it reads: P1211 Injection Control Pressure above/ desired. What does this mean? how to fix it?
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Senior User
Joined: Jun 2006
Posts: 136
Likes: 0
From: Gaylord, Michigan
Hey Coonhunterjoe, I think you mave have solved the problem. I took a look at the connections, and on the pigtail to the IPC the three individual wires with plugs all had damaged insulation! So I just got done soldering in some good wire. and in a little bit, Im gonna give it a try.
Cargo Master
Joined: Jul 2006
Posts: 2,756
Likes: 38
From: Nampa, ID
If the ICP connections are good, check the oil level. If the oil level is too low (or the oil is old) the HPOP can't build up enough pressure to fire the injectors reliably. It just gets worse when it's colder outside.
Did you clear the codes after the ICP was 'rehabbed'?
Did you clear the codes after the ICP was 'rehabbed'?
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 103
From: Ashland City, TN
Mine was at the top when i checked my HPOP..
So it should be somewhere up there close.
The ICP connector is fragile too I noticed.
Typical crappy automotive design. It looks like you could pull the wires right outa the connector when I was dorking with it.
Yea, make sure you clear codes. You might have just re-read the hung code.
So it should be somewhere up there close.
The ICP connector is fragile too I noticed.
Typical crappy automotive design. It looks like you could pull the wires right outa the connector when I was dorking with it.
Yea, make sure you clear codes. You might have just re-read the hung code.
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