need help with 99 7.3 p0107 code
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need help with 99 7.3 p0107 code
so im fairly new to power strokes and I just bought a 99 7.3. it is throwing the code p0107 and I have been doing a lot of reading and have not found much. the guy I bought it from says he changed the MAP sensor and it didn't change anything, I changed the pcm and that didn't fix it either. where I live I need it to pass echeck to get plates for it, and it wont pass with a check engine light on. if any one can help me I would much appreciate it.
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From: Amarillo, TEXAS!
P0107 - Barometric pressure sensor, Low Input
Assuming you have an early '99 (I believe the sensor became internal to the PCM as of '99.5), there's a barometric pressure sensor under the instrument panel on the left hand side, next to the steering column. It may have gone bad, or there may be a problem with the wiring. The sensor looks more like a relay than a sensor, and has a round connector on it with three wires. Gray with red tracer, brown/white tracer and dark blue/light green tracer. I'd go try to get a pic of it for you, but it's dark here now
Assuming you have an early '99 (I believe the sensor became internal to the PCM as of '99.5), there's a barometric pressure sensor under the instrument panel on the left hand side, next to the steering column. It may have gone bad, or there may be a problem with the wiring. The sensor looks more like a relay than a sensor, and has a round connector on it with three wires. Gray with red tracer, brown/white tracer and dark blue/light green tracer. I'd go try to get a pic of it for you, but it's dark here now
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From: Amarillo, TEXAS!
What is the build date on the door sticker? Through 12/6/98 is early '99. If the door sticker is missing, how many bolts are in the compressor housing of the turbocharger (assuming it's the original type)? 4 bolts is early '99, 5 bolts is '99.5 and up.
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From: Amarillo, TEXAS!
Here's a pic. It's the square, black one with the Ford logo, next to the brown connector. I guess I should have said it's on the left side of the truck, but to the right side of the steering column. Sorry if I made that confusing.
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Lead Driver
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Well, that's odd. If it is in fact internal, the PCM is faulty. Do you have the Ford part number or the code (something like XLE4, PMT2 or the like) from the PCM you installed?
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Lead Driver
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From: Amarillo, TEXAS!
I just looked it up, and what I thought about the build date appears to be correct. If it was built before 12/7/98, it should have the external sensor. If it was built on 12/7/98 or later, the sensor is in the PCM.
Lead Driver
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From: Amarillo, TEXAS!
That doesn't look like a PCM part number for a Super Duty. I can't find it anywhere; not even Google turns up a valid result. A PCM part number, or at least all the ones I'm aware of, have 3F as the third and fourth digits, i.e. XC3F, YC3F, etc.
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From: Amarillo, TEXAS!
Don't give up just yet, lol. I'm sure someone here can get this worked out, even if I can't take it any further. There are a few people here who work with PCMs and tuning a lot. Is the truck an F250/350 model, or is it a 450/550?
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From: Amarillo, TEXAS!
OK. If the door sticker is there, double check the build date, too. That could shed some light on this pretty quickly. I did find some PCM update codes that start with F81F. Is the truck a 6 speed?