egr question
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Junior User
Joined: Oct 2007
Posts: 82
Likes: 0
From: ontario canada
egr question
Hey folks,
I noticed my truck is running rough after warm up. I checked for codes. One code came up. High voltage at the egr. I pulled the vacuum line off and plugged it. Hooked uup a manual vacuum pump and brought it up to 15.
Engine ran rough to almost stall. Does this mean it is working ok?
If so what else should i look for. There has been a repair done on the exaust tube that goes up to the back of the engine. Could this have anything to do with it
Hope someone can help.
I noticed my truck is running rough after warm up. I checked for codes. One code came up. High voltage at the egr. I pulled the vacuum line off and plugged it. Hooked uup a manual vacuum pump and brought it up to 15.
Engine ran rough to almost stall. Does this mean it is working ok?
If so what else should i look for. There has been a repair done on the exaust tube that goes up to the back of the engine. Could this have anything to do with it
Hope someone can help.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
The explanation of that code is " DPFE or EVP circuit above the closed limit of 0.67 volts". That's telling you the EGR position sensor is showing a voltage that is higher than it should be when the EGR valve should be closed(0 vacuum). So either the sensor is bad or more likely the valve isn't fully closing.... since the motor isn't running right either. I'd suggest removing the EGR valve and thoroughly cleaning it and retest.
