Seemingly Random P0272 error code

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Aug 31, 2017 | 10:05 AM

SuoperDoty

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Joined: Aug 2017

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Seemingly Random P0272 error code

Hello. I'm new here. I've actually been lurking for a year or so, but finally created an account. My Dad died last year, and I was given his truck. 2006 F350 4x4 Crew Cab, 6.0 PS, ~196,000 on it at the time. I've added the oilchargesystems.com bypass filter, a coolant filter, and swapped out the CAC tubes (plastic one had a hole in it. Could only get about 10psi of boots). New brakes and calipers all around. And swapped bearings and seals in the rear. I installed the updated spring kit in the fuel filter bowl. I've got the y-pipe leak, and have the parts to swap it out, I just need to find the time. The last time my dad had it into the shop they said he needed new injectors. The truck seems to run fine, but I get a completely random P0272 (Cyl 4) code. And I mean random. The FICM is a reman that my dad had swapped it out in 2015. Monitoring the voltage with TorquePro it swings between 46-48.5

I can't seem to complete a buzz test, or contribution test with Car Gauge Pro. The error is "conditions not right". The buzz at start up even seems a little off. I'm thinking i could have a harness issue?

Can anyone steer me in the right direction?

Thanks.