AE works, codes found....
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AE works, codes found....
Finally made some sense of the AE reader-my fault not the AE-and pulled these codes:
P1316 (IDM codes detected)
P1670 (Electronic feed back signal not detected)
P1876 (Transfer case 2 WD solenoid circuit failure)
P1812 (4 WD mode select circuit failure)
Can anyone point me where to go at this point? I know that throwing a code does not always mean replace, what should my plan be?
P1316 (IDM codes detected)
P1670 (Electronic feed back signal not detected)
P1876 (Transfer case 2 WD solenoid circuit failure)
P1812 (4 WD mode select circuit failure)
Can anyone point me where to go at this point? I know that throwing a code does not always mean replace, what should my plan be?
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The problem continues-if I put the truck in gear with the brake on, it will idle fine for a while then the CEL will come on and it will stall badly, usually for a short time, then the light goes off and smooth idle returns.
Post Fiend
Joined: Sep 2003
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From: Mesa AZ
When you say "stall badly" does it feel like the engine is running on 4 cylinders?
Now would be a good time to run a buzz test. This test is done with the engine off. You will hear a loud extended initial buzz which is all injectors at once....then it will be followed by 8 individual pulses. The order will be #1, #2, #3 etc.
The symptom you describe kinda sounds like a burned center pin in the under valve cover harness area or a sticky IPR. I didn't see any ICP codes so I am leaning towards the UVCH at the moment...
Now would be a good time to run a buzz test. This test is done with the engine off. You will hear a loud extended initial buzz which is all injectors at once....then it will be followed by 8 individual pulses. The order will be #1, #2, #3 etc.
The symptom you describe kinda sounds like a burned center pin in the under valve cover harness area or a sticky IPR. I didn't see any ICP codes so I am leaning towards the UVCH at the moment...
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I did run a buzz test and have replaced the UVCH on the drivers side (when the truck was stalling, I pulled each harness connector and the truck would die when the passenger side was pulled but no change when the drivers side was pulled so I was looking in that direction) I would like to know what direction to head in before I start replacing a bunch of parts. When it stalls, the fuel bowl is full as is the HPOP. Will the CPS ever cause issues like this or is it a go-no go thing?
Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 26
From: Mesa AZ
I did run a buzz test and have replaced the UVCH on the drivers side (when the truck was stalling, I pulled each harness connector and the truck would die when the passenger side was pulled but no change when the drivers side was pulled so I was looking in that direction) I would like to know what direction to head in before I start replacing a bunch of parts. When it stalls, the fuel bowl is full as is the HPOP. Will the CPS ever cause issues like this or is it a go-no go thing?
So, you pulled the connector on the driver's side while the engine was running and there was no change and THEN you replaced the UVCH? Or the other way around? When you changed the UVCH, did you just replace the harness or the gasket or both?
When you ran the buzz test, were there any codes returned? You should be seeing more specific IDM codes besides the P1316. Have you run the KOER (Key On Engine Running) test yet?
Do you have an EGT gauge? If so, where is the thermocouple located?
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I replaced the gasket and harness on the driver's side because the stalling did not change when I disconnected that side. The buzz test showed #6 injector circuit low even after the UVCH replacement and the stalling continues. I have done the KOER test and the other codes it shows are:
P1536 parking brake switch circuit
P0220 throttle/pedal position sensor/switch b circuit
P1780 trans. contr. switch (OD cancel) circuit out of test range
P0571 CC/brake switch A circuit
P0703 torque converter/brake switch B circuit
P0565 CC on signal
P0566 CC off signal
P0567 CC reume signal
P0568 CC set signal
P0569 CC coast signal
Is the EGT gauge the exhaust gate or waste gate?
P1536 parking brake switch circuit
P0220 throttle/pedal position sensor/switch b circuit
P1780 trans. contr. switch (OD cancel) circuit out of test range
P0571 CC/brake switch A circuit
P0703 torque converter/brake switch B circuit
P0565 CC on signal
P0566 CC off signal
P0567 CC reume signal
P0568 CC set signal
P0569 CC coast signal
Is the EGT gauge the exhaust gate or waste gate?
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Post Fiend
Joined: May 2009
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From: Pea Ridge, AR
When you did KOER, did you perform all of the functions it was asking to be completed? I.E...depress brake pedal, cycle CC, cycle 4hi...etc.
EGT would be an aftermarket gauge.
EGT would be an aftermarket gauge.
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Post Fiend
Joined: May 2009
Posts: 5,470
Likes: 3
From: Pea Ridge, AR
Also check the wiring going across the driver's side valve cover to the 42 pin connector, it is known to chafe on the valve cover.
GB_Tech_Bulletin_103_Ford IDM_Module_Replacement (1).pdf
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