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DT466E / Code 333

28518 Views 5 Replies 3 Participants Last post by  carterjohn2155
I'm in deep!!! I'm working on a 2000 Int./4700 w/a DT466E. I keep getting a code 333(injection pres. above/below desired spec). I did some volt & ohms
tests on the IPR & ICP sensor,they seem to be OK.The truck already has a
new high pres. oil pump & regulator in it already. I replaced the injector seals because I thought a couple of them were leaking. Sometimes the code will
set right after startup,other times it won't set until you drive it (less than a
1/4 mi).If I hook up the Pro-Link scanner & monitor the pres. when it's cold,
it's around 1200-1300 PSI. As soon as the code sets it drops to 750(Limp Mode). The code will also set if I run the Standard Running Test.

Fault Description:
333-(1) If set during normal engine operation indicates engine is operating in open loop control & ICP pressure is above or below desired pressure.

(2) If set during engine running test, indicates ICP system failed step test & could not maintain commanded pressure.

Possible new pump is bad?

1 - 2 of 6 Posts
I was able to get it, thanks.My low oil pres. seems ok. I have 60 PSI running,approx. 20
cranking.I'm not having any problems starting.It starts fine & runs good until the light comes on.This morning I hooked up both the pro-link & a manual oil pres. gauge.
Running, the gauge is reading 700PSI,the scanner is reading 560-570PSI.I did some ohms checks on the wiring again & they seem to be ok.It has a new ICP sensor in it already.I think the 700 is where the computer wants it but it's reading that it's low so it's setting the code.:bang
1 - 2 of 6 Posts