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Discussion Starter · #1 ·
I had a p0281 fault telling me the #7 injector was bad. I replaced it and everything was fine for about a half hour. I was driving it when it developed a miss. I drove it home and checked fault codes. It said I was now having a #1 and #5 contribution error.

I cleared the codes and let it sit for a few minutes. It started up like everything was fine. I drive it for a few blocks and it started missing again. This time it came up with #1,#3 and #7 contribution fault.

the ficm voltage is staying at a constant 48.5. Could I still have air in the injector line? Any other things to check before I start tearing it apart again?

Thanks in advance
 

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Check the plugin's on the ficm are fully seated and latched in. Also check the wireing harness for chafes or broken wires.
 

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Either your ficm logic board is shot, your plugs are not seated well, or you may have combustion gas in your fuel from leaking injector.

Sent from my phone that somebody didn't help me get.
 
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