P2290 in an '08 E-450 on a reman engine

GregH · April 8, 2011

Not long after I installed the engine into this vehicle, the fleet manager called me up and told me the check engine light was on. He finally brought it to me this morning to check. It's got a P2290 in memory and pending. Snapshot shows it happened after it had been running for 9 hours, and it was under a high load situation running at highway speed.

I take it out on the road - runs nicely. Starts good hot, runs out with plenty of power. Monitor ICP, ICPV, ICP_DES, and IPR. ICP and ICPV track together - KOEO ICPV is .24, hot idle is around .8. Rolling into the throttle all the way to the floor shows an increase in IPR up to 84%. ICP_DES increases from 580psi or so to 3700psi. ICP ramps right up with the rest from around 580psi up to 3700psi. Once it reaches 3700psi, it holds there for about a half a second, then drops to 3000psi. It remains at 3000psi until I ease off the throttle.

As long as ICP_DES remains below 3000psi, the ICP system keeps up just fine. When demand goes over that, the ICP system stays on it's ceiling of 3000psi, and the P2290 sets.

I'm probably going to drop an IPR onto it just to check, but I'm thinking it's going to require a high pressure pump to fix the concern.

This is a 6007 assembly that was installed 4000 miles ago. What is your opinion?

Keith Browning · April 8, 2011

I would verify fuel pressure first then proceed if okay.

Mbl35 · April 9, 2011

I just had to go over a rebuilt engine a dealer recently put in for us, it was smoking out the tailpipe like crazy.Fuel pressure was up to 60 psi and the needle was fluctuating. Had 2 cyls missing intermitantly, took off both valve covers and i found cyls 2,4,6,8 and 3 all loose, so loose i turned the torx socket by hand to get the injectors out. Cyl 6 injector compression washer disintegrated and burned up the cup. When i put in a rebuilt i check to make sure the injectors were installed properly. and we had a few other engine installs done at the dealer where it came in shotly after with a mis on more than 1 cyl due to loose injectors.

I wouldnt be surprised if the high pressure pumps are loose or over tight on these rebuilds. I have seen that cause premature pump failures on recently installed pumps from other tecss, but i got my suspiscions with these rebuilds.

GregH · April 13, 2011

Fuel pressure under load was 50psi, so I dropped an IPR into it before going further into the high pressure system. The IPR fixed it. Nothing obviously wrong with the IPR, either.

Time will tell if anything else is wrong..