engine troubles

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Sep 21, 2006 | 07:11 PM

banjodog

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Joined: Dec 2004

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engine troubles

Have a 96 7.3 psd and in the last month the engine just began running strange. This has happened 3 times, it only lasts about 10 - 30 seconds at a time. The check engine light comes on; engine starts idling really rough. This has only happend during the first few minutes of starting it up. Then is seems to run fine after that. I drive this truck every day. I am reluctant to take it in to a shop since it has happened only three times but I do not want it to get worse. I am getting engine codes-P0470 (exhaust pressure sensor malfunction) & P0603 (internal control module keep alive memory error). Any advice would be appreciated.

Thanks
Brent

Sep 23, 2006 | 11:39 AM

cookie88

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Joined: May 2001

Posts: 13,653

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From: Cabot, Arkansas

Well....the p0470 might be able to cause something like that, but it sounds like it could be a problem with the UVC wiring harness. Maybe a short that only shows up when the glow plugs are active?