injection pressure too low, code p2290 - Ford Powerstroke Diesel Forum
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post #1 of 40 Old 11-14-2012, 11:11 PM Thread Starter
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injection pressure too low, code p2290

Truck starts ok and runs ok but when accelerating fast code p2290 comes up. what could it be? I just bought the truck a month ago. I am new to the diesel world. can someone please help me

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post #2 of 40 Old 11-15-2012, 07:10 PM
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What year is your truck? Do you have a monitor? It could be hpop leak, or hpop failing, bad icp, failing ipr. How does it run, cold/hot?

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post #3 of 40 Old 11-15-2012, 08:59 PM Thread Starter
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It is an 04 f-250 I don't run it much til it heats up sometimes it runs really good and sometimes it doesn't all the work was done before I got it. What would be the best way to pinpoint the cause for the code?

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post #4 of 40 Old 11-17-2012, 03:02 PM
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Generally,if she runs good,starts good hot and cold,it is likely the wiring pigtail is worn,or has broken clips.,try there first.

2004.5 F-550,4x4,6.0,auto,CTS monitored,
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post #5 of 40 Old 11-17-2012, 08:32 PM Thread Starter
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I will look at it and check the pigtails, if I drive it easy the code doesn't come up only when I run it hard. Where can I get the pigtails at?

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post #6 of 40 Old 11-18-2012, 03:39 AM
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Put a new ICP sensor in and go on. My 04 was doing the same thing. Ran and started fine, just sets the code.

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post #7 of 40 Old 11-18-2012, 04:16 AM
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I put a sensor in mine,it was the pigtail,clips were broken,wasn't on there snug,about $12 @ Ford. I have a good used sensor,as I bought that first.

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post #8 of 40 Old 11-30-2012, 08:09 PM Thread Starter
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I have purchased a Snap-on Modis scan tool what should the injection pressure be at WOT.

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post #9 of 40 Old 11-30-2012, 08:14 PM Thread Starter
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I monitored it while driving. the inj press and inj dsd stayed very close to the same until hard acceleration there was a 1600 psi difference.

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post #10 of 40 Old 11-30-2012, 09:32 PM
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what's important here is viewing and deciphering the ipr duty cycle while the actual icp and desired icp delta is at its highest. basically, if the ipr duty cycle is high while the icp pressure is much lower than desired, then the ipr is either stuck (attempting to close), the pump is failing, or there is a leak in the hpo system. since you say there are no problems starting, that should rule out a leak. which would leave either a weak pump or a sticking ipr. being that it's an 04, i wouldn't be surprised if it ended up being the sign of a pump on the way out

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