codes p2138 p2139 p2140 help!!
Elder User
Joined: Sep 2007
Posts: 803
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From: S CAL
Well in that case I do not believe I have helped very much. Just keep on searching there has to be a logical explanation for your problem. I will look at my prints again and see if a light bulb comes on.
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Freshman User
Joined: Jun 2011
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From: Oshkosh
was going down the road and it slowly snubbed its self out as if it ran out of fuel (was low but not out) pushed to gas station put fuel in pulled fither to make sure was primed cycled key few times got it to kind fire up would barly run wot would barly idle but just chugged the blackes smoke you ever seen so much the attendent came running out got it to clear up drove about 2 blocks did it again did same thing 3 times till the last time it wouldnt start again i did notice the bk/pk and dg/lg (power and ground for ficm) in connector c1282 were so hot including connector was hard to hold in hand pushed to parking lot and its still sits there any ideas or help would be great
would the ebp cause a symptom like this?
would the ebp cause a symptom like this?
Tuned
Joined: Sep 2011
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Hmm - Under-hood air. That may affect things (wiring).
With a stock 6.0L in an F-series:
There is a harness crossover under the air filter, at a stud on the corner of the valve cover that can cause problems if the clip on the harness is missing and the stud is poking the bundle. Also, near the steering column, where it goes through the firewall, or at the accelerator pedal pivot point, lastly the PCM harness can chafe at/near the PCM or at Connector C145 or C1010. Also, can get this code from a shorted out EBP sensor (along w/ an EGR code and possible ICP, Baro, and MAP codes) due to shorted out v-reference circuit 351.
Monitor v-reference voltage! Post back what it is.
You can disconnect many v0reference sensors and see if it helps (EBP, ICP, EGR valve are the most failure prone)
With a stock 6.0L in an F-series:
There is a harness crossover under the air filter, at a stud on the corner of the valve cover that can cause problems if the clip on the harness is missing and the stud is poking the bundle. Also, near the steering column, where it goes through the firewall, or at the accelerator pedal pivot point, lastly the PCM harness can chafe at/near the PCM or at Connector C145 or C1010. Also, can get this code from a shorted out EBP sensor (along w/ an EGR code and possible ICP, Baro, and MAP codes) due to shorted out v-reference circuit 351.
Monitor v-reference voltage! Post back what it is.
You can disconnect many v0reference sensors and see if it helps (EBP, ICP, EGR valve are the most failure prone)
Last edited by bismic; May 18, 2026 at 03:58 PM.
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