check engine codes

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Sep 1, 2008 | 12:09 PM

silver05fx4

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From: altoona

check engine codes

well check engine light came on today and got 3 codes with a very rough ide
po172 bank 1 system too rich
po301 cylinder1 missfire
po316 misfire detected on startup first revolution under 1000rpm

I'm thinkin its a injector but not sure

Sep 1, 2008 | 12:15 PM

screwy

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From: Over Yonder, MN

I'd check for spark first.

Sep 1, 2008 | 12:30 PM

silver05fx4

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From: altoona

how do u think i should go about check for spark same a the old motor with wires and a distbuter

Sep 1, 2008 | 02:02 PM

Wilber15

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From: Duluth, MN

I'm willing to bet injector stuck open. Pull the fuel rail up(removed 4 8mm bolts on the rail) and put rags under the injectors. have someone turn the key to run(not start) and check for any injectors leaking.