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Dvorak
Senior Member

United States
95 Posts
Posted - 08/06/2015 :  07:55:17 AM  Show Profile  Reply with Quote
I have an 03 International with a 466 that keeps coming up with a low icp code (333) but only when the engine is warm and under a load. When desired ICP is 3200 I'm only getting around 2900. I tested the pump and regulator and it creates around 4500 when cranking. That told me the problem is under the valve cover. After replacing the injector o-rings with OEM, it still has the same issue. Could an injector cause low ICP and if so, how do you find out which one? Anything else I should be looking for?

bfaulkner
Senior Member

168 Posts
Posted - 08/06/2015 :  08:07:16 AM  Show Profile  Visit bfaulkner's Homepage  Reply with Quote
You could hook shop air to the oil fitting and inspect the injectors. Look for air leaking from one of the injector heads.
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Dvorak
Senior Member

United States
95 Posts
Posted - 08/06/2015 :  11:10:06 AM  Show Profile  Reply with Quote
I tried that. No leaks.
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krmvcs
Advanced Member

362 Posts
Posted - 08/06/2015 :  1:00:17 PM  Show Profile  Reply with Quote
no oil transfer to the fuel or coolant? just thinking out loud...
-Ken-
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mhernandez73
Senior Member

124 Posts
Posted - 08/07/2015 :  04:31:57 AM  Show Profile  Visit mhernandez73's Homepage  Reply with Quote
we took a porta power filled with cj oil fitted it to a guage and connected to high pressure line going to head. pressure up to 800 psi. check for leaks.we added dye to oil. hope this helps.we went through several hit and miss with shop air
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got a min
Active Member

31 Posts
Posted - 08/07/2015 :  4:23:01 PM  Show Profile  Visit got a min's Homepage  Reply with Quote
Did you check icp voltage should be .24 v key on engine off.
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