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Discussion Starter #1
hey everyone , new to the deisel world , got some codes out of my truck , need help figuring out what to do with them.sorry if i posted this in the wrong section.got a code p0541 intake air heater a ckt low,
p1211 icp press above/below desired.
p0603 internal ctrl module kam error, truck is stock 7.3 with an sct tunner and afe stage 2 inatke, mbrp exhaust going on today , hopefully!
truck also seems to not be getting up and going as good as it used to,now it's not cause i'm getting used to it. it is definatley loosing power. snap on scanner trouble shooter says one of these codes may be caused by hpop probem , not enough oil for fuel preasure requirments,if so how do i get it changed under warranty , i know there gonna say it meets stock requiremnts.


thanks for any help in advance
:smoke
 

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FRANKEN STROKE
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189 Posts
You can get the same codes just from running your truck to hard, if there is such a thing! but if your are worried just go to a shop have them hook it up, they can check your pump pressure out for you. But the p0541 is normal if you have an aftermarket intake.
 

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Senior Member
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:agreed: Also look and see if your air intake heater is unhooked, that will throw the code and is a common mod done to these trucks, AIH delete.

Air Intake heater element is located in the Y pipe and the wire goes to the tall solenoid next to the short solenoid that is your glow plug relay. If unhooked that code will always be present, otherwise test that solenoid or delete the heater.
 

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Make sure the AIT sensor is hooked up.

The internal KAM error is normal and it's from the chip, nothing to worry about and nothing you can do about it.

The 1211 code is the dreaded ICP code. This is common on trucks with chips as the stock high pressure oil pump can't keep up with what the chip asks for. It doesn't really hurt anything, but until you get big oil you'll loose a bit of HP on the top end. A switch to single shots or hybrids will help the 1211 code if you don't want to go big oil. Hook a scanner up to it and do a couple WOT runs to see what the ICP and duty cycle are, they'll help tell whether you have a bad HPOP or just the normal lack of oil w/chip.
 

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Newbie
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The KAM error stands for Keep Alive Memory is occurs when the batteries are disconnected and is no big deal. All the codes you are seeing are no big deal. The P1211 code is from you HPOP not being able to supply the injectors with adequate oil supply. A common code with chiped trucks.
 

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Discussion Starter #6
update (maybe)

got my 4 ich turbo back mbrp exhaust installed last night , took truck for a rip, truck ran awesome! tires were on fire,turck had not run all day though, beginning to wonder if it looses power when it gets hotter?i always let the temp guage come up before i drop the hammer but that can't be the same as dropping the hammer when the truck has been running for hours.does that make sense?
 

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THE PO1211 COULD ALSO BE SET FROM LOW FUEL PRESSURE CHECK FUEL PRESSURE AT THE PUMP OR CAP (IF YOU SAY ITS LOOSING POWER) BUT OTHERWISE DONT WORRY BOUT THAT 1211 IR ANY OTHER 1 OF THEM THERE NOTHIN
 

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Discussion Starter #8
how do you go about doing that?
 
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