it is deleted and the valve is stil there?
i guess i am ignorant of what an EGR delete consists of ...hhhmmm
mine is a sinister brand delete kit...looks like a flat blue anodized plate bolted down on the intake manifold. so i am reasonably sure there is no valve on mine...and i found the empty plug where the EGR would have been attached
Depends on the strategy. Seems the earlier trucks don't have much of an issue, at least not throwing a CEL. They may set a soft code for Insufficient flow though. Others don't seem to even notice it's gone. For safety's sake on mine, I leave it plugged in since there is also the possibility of affecting cooling fan function. I've got a BPD cooler with a spool plug in the EGR hole and the valve bolted beside it.
Depends on the strategy. Seems the earlier trucks don't have much of an issue, at least not throwing a CEL. They may set a soft code for I n sufficient flow though. Others don't seem to even notice it's gone. For safety's sake on mine, I leave it plugged in since there is also the possibility of affecting cooling fan function. I've got a BPD cooler with a spool plug in the EGR hole and the valve bolted beside it.
I throw a soft code if it's not plugged in. But now that I think about it I have the 7.3 manual fan clutch so I don't even need to to have the valve plugged in anymore...lol
"We cannot solve our problems with the same thinking we used when we created them."
I guess I'm a little concerned with that. I bought this truck 2 months ago, EGR delete, studded, blah blah blah
I've got no P-codes in memory, which I guess means I've got a tune.... but no tuner.
Does that mean I have no stock file to go back to, should I buy a tuner?
I should say that my EGR is turned off with tuning and I've never received a code for it. I put the spool in as extra insurance in case the valve ever stuck or blew open under boost.
Yes, p0401 can be caused by anything that causes less of a drop in maf and ebp when the egr valve is commanded open. That is what the PCM monitors when determining egr flow
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