P0470 code and lope mode
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Fleet Mechanic
Joined: May 2005
Posts: 1,739
Likes: 14
From: Vale, NC
P0470 code and lope mode
Hey guys - sorry I haven't been on in a while.
My truck is freaking out and I have to get to jury duty today! It started the other night. Truck was running fine and then went into limp mode with the CEL on. I put it in nuetral, turned it off and then restarted after a few seconds. The Amp gauge showed the glow plugs were on and it ran fine. As soon as the amps went back to normal, the thing went into limp mode with CEL. It did that about 4 times until I ran the snot out of it while the GPR was on and then it cleared up and ran fine all the way home. The next day was suny and nice and it ran fine. The last 2 days it has been rainy and the same thing is happening but I can't clear it up.
I replaced the GPR after talking to Bill and it didn't change anything. I also pulled the Exhaust Pressure Sensor and cleaned it out (that is the code, I believe).
Any ideas?
My truck is freaking out and I have to get to jury duty today! It started the other night. Truck was running fine and then went into limp mode with the CEL on. I put it in nuetral, turned it off and then restarted after a few seconds. The Amp gauge showed the glow plugs were on and it ran fine. As soon as the amps went back to normal, the thing went into limp mode with CEL. It did that about 4 times until I ran the snot out of it while the GPR was on and then it cleared up and ran fine all the way home. The next day was suny and nice and it ran fine. The last 2 days it has been rainy and the same thing is happening but I can't clear it up.
I replaced the GPR after talking to Bill and it didn't change anything. I also pulled the Exhaust Pressure Sensor and cleaned it out (that is the code, I believe).
Any ideas?
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Fleet Mechanic
Joined: May 2005
Posts: 1,739
Likes: 14
From: Vale, NC
It didn't seem to matter if it is warm or cold, though, if that means anything.
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Fleet Mechanic
Joined: May 2005
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From: Vale, NC
Just to be clear the pressure sensor I pulled out and cleaned is up at the front by the HPOP, not the thing I unplugged back by the turbo.
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Fleet Mechanic
Joined: May 2005
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From: Vale, NC
Thanks - I just replaced them all a few months ago so that worries me, but I will go take a good look.
Post Fiend
Joined: Dec 2009
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From: Livoina,La
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Fleet Mechanic
Joined: May 2005
Posts: 1,739
Likes: 14
From: Vale, NC
I started it and then pulled the two little wires off the gpr immediately. It didn't have any problem and I just finished driving to jury duty (the third 60 mile round trip this week!). I just taped the little wires up so they wouldn't touch anything. But I don't really understand what is going on. So any further explanation and advice is appreciated. At least they won't swear out a warrant for me!
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Lead Driver
Joined: Oct 2003
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From: Madison, WI
No, it doesn't. EBPV is controlled by the PCM, which uses TEMPERATURE (EOT and IAT) to determine when to close it.
What brand?
(That's a voltmeter on the dash BTW, not an ammeter. The oooold trucks had an ammeter.)
(That's a voltmeter on the dash BTW, not an ammeter. The oooold trucks had an ammeter.)
Logistics Pro
Joined: Oct 2008
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From: Avilla, IN
Dan, you might have a finicky CPS. I've had them act like that before. Something about the voltage draw from the GP's or something, I don't know. It doesn't make sense to me.
Post Fiend
Joined: Dec 2009
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From: Livoina,La
The pcm also uses the EBPS to open the EBPV when you accelerate
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Fleet Mechanic
Joined: May 2005
Posts: 1,739
Likes: 14
From: Vale, NC
The gaskets and pigtails were the Dorman ones. It seems to me that if they were the problem it would effect the way it runs all the time. Wouldn't burnt pins mess up the injector control? It runs fine until the GPR cycles off and runs fine if I disconnect the GPR
