Super Duty & Heavy Duty1999 to current Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines
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I have 02 F250 7.3 diesel. Recently installed K and N intake. Runs great fuel mileage improved however after having it on for about a week my emission light is now on. I read many threads talking about oil getting on MAF and creating this problem...where can I find the MAF? Does anyone have a picture to post showing what and where it is? Any help will be appreciated!
Welcome to FTE. Having the exact code would be helpful. Not all code readers are compatible with the 7.3 (ignore all those 96 and up claims). Maybe you mean the MAP instead of the MAF?
Also, pay very, very close attention to the inside of the intake tube between your new K&N and the turbo. The first time you see any signs of dust in there, switch to a different filter. We've read about several dusted turbos and even dusted engines because the K&N does not filter well enough in front of our turbo.
I wouldn't think this code would set off an Emissions light, but....
I second the motion to put the K&N on Craigslist.
__________________ Bunky Jones, retired AF mechanic, New Jersey escapee
'02 F350 PSD 2WD Crew Cab, SRW, Short Bed, PHP tuner, 4" turboback exhaust, AEM intake, Firestone air bags, Tru Cool 4739, tranny, water and exh temp guages.
2008 Cameo 35SB3 5th wheel, our retirement condo on wheels. Happiness doesn't come from getting what you want, it comes from appreciating what you have!
So do you have an Excursion or a California emissions package truck? Glow plug #6 is the 3rd one back on the driver side. To see if it's actually a glow plug issue, find the long flat connector on the inboard side of the driver side head and unplug it (engine off). Grab a multi meter and set it to read ohms. There will be 9 flat pins inside the connector at the valve cover. Counting from the front, test pin #8 (2nd to last) against a battery ground. A reading of less than 2 ohms means a good glow plug.
If the glow plug reads good, then you've got either a wiring or GPCM issue. If the glow plug tests bad, you've got either a wiring or a glow plug issue. The GPCM is more expensive, but much easier to replace.
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