Multiple Codes 98 F-150
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Multiple Codes 98 F-150
Hi I've got a '98 F-150 4.6L 4x4 automatic transmission single cab flareside blah blah.. ran fine when I first started driving it then had some sputtering thought maybe bad gas..couple days went by and the check engine light came on. I visit my local autozone and borrow a scanner and I came up with 6 codes. One for P1000, one for P0455 and four for P0304. Basically 4 codes for misfire on cylinder 6, one for an EVAP leak and one for the PCM not completing a cycle. I first noticed this after a fillup at a gas station and my first thought was bad gas. I put some HEET in the tank and didnt notice any improvement. As far as actual performance the truck will run fine and then start losing power and sputtering and I have to step on the gas to get it back to speed. This happens a lot on hills but will happen any time. At first just stepping on the gas would clear it up but it got to a point that it just ran like crap. The last day it has been running more on the good side than bad but will still hesitate and sputter and theres a noticeable lack of power. This has been going on for a week now. I was wondering if anyone had had a similar experience or combination of codes that could give me some direction to head as tracking down every bit of the EVAP seems daunting. Thanks for any help.
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Joined: Jan 2004
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From: St Louis
Fix the misfire on #4 (P0304), ignore the rest for now. Fairly typical behavior for a bad COP. Once the misfire is repaired, reset the PCM and drive the vehicle normaly for several days to see what happens.
A P1000 code is completely normal for a period of time after the PCM has been reset. It will go away once all self-test monitors have run successfully.
The P0455 might be something as simple as a gas cap that didn't seal correctly. It has nothing to do with the misfire.
A P1000 code is completely normal for a period of time after the PCM has been reset. It will go away once all self-test monitors have run successfully.
The P0455 might be something as simple as a gas cap that didn't seal correctly. It has nothing to do with the misfire.
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