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Old 11-29-2017, 01:10 PM
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Default P0404 and P2552

I know P0404 is probably a dirty EG R. Runs a little rough occasionally and dad just puts his foot on the floor to "try to clear it out." I shake my head, but it's his truck. Any chance the P2552 is caused by that, or am I looking at two different issues? He's going to stop and either get a new valve, or just a seal kit. I'll clean it out once he gets the parts.

05 with roughly 150,000 miles, bone stock.
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Old 11-29-2017, 01:40 PM
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unsure of the p2552 but all he needs is the o ring kit and to clean it out. should be good for the egr code
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Old 11-29-2017, 04:53 PM
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Quote:
Originally Posted by 046.ohBills View Post
unsure of the p2552 but all he needs is the o ring kit and to clean it out. should be good for the egr code
That's what I'm hoping. The P2552 is "throttle/fuel inhibit," which searching has only brought up FICM problems, and seems to be mostly after replacement.
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Old 11-30-2017, 05:05 AM
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Exactly, either that or wiring that deals with the ficm or injectors. Could try cleaning the ficm connectors and see if that helps.
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Old 12-03-2017, 10:53 AM
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Might check to see if the FICM connectors are full ‘clicked in’.


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