If you want to attempt the ICP sensor from the bottom, my suggestion would be to get your body as close to the motor as you can, it's quite a reach.

Its also possible to get it from the top. Remove the degas bottle and the FICM and you should have the clearance needed.

Sorry the pedal didn't help.

 

I will try that, I've tried from the bottom but my arm doesn't fit lol

I just disconnected the fan clutch since it doesn't work anyways, I believe something is wrong with it electrically so might as well eliminate that

 

You are an electrician, right Miles?

 

I did residential wiring for about a year and a half, now i plow snow and shovel roofs while going to school for a lineman internship. Im clueless when it comes to this truck though, not to mention i can't fit my hands anywhere. I never did too much with troubleshooting either, usually it was just blown up outlets or failed backstabs. I have a wiring diagram of the truck but im not sure what to do because it is working fine right now...

I just revved my truck up to 1200rpm with a sledgehammer and wiggled every wiring harness i could get my hands on, tapped on the pcm, anything i could think of. Nothing...

 

Aah, I was gonna give you grief and tell you to get our your Fluke and git'r'done!

Do you have any kind of a logging meter available?

 

I do not personally, my old boss might have something. I just have a fluke 373 and t5-600

 

You mean that thing is still giveing you problems?!!!!!
Fluke makes a graphing multimeter but $$$$$$$ cheaper that a occoloscope tho.

 

This thing gave me problems all last winter too haha. I thought it was done...nope. hey at least it's almost spring so maybe it'll stop again

 

I know that intense cold can make electrical devides do strange things but that has to take the cake.

 

P2104 APP Throttle Actuator Control System - Forced Idle ---APP sensor, signal circuit shorted
P2122 APP Throttle/Pedal Position Sensor/Switch D Circuit Low Input--- APP sensor, connections, open in signal circuit, signal circuit short to ground
P2123 APP Throttle/Pedal Position Sensor/Switch D Circuit High Input--- Short to voltage, signal return open, APP sensor
P2127 APP Throttle/Pedal Position Sensor/Switch E Circuit Low Input--- APP sensor, connection, open in signal circuit, signal circuit short to ground
P2128 APP Throttle/Pedal Position Sensor/Switch E Circuit High Input--- Short to voltage, signal return open, APP sensor
P2132 APP Throttle/Pedal Position Sensor/Switch F Circuit Low Input--- APP sensor, poor connection, open in signal circuit, signal circuit short to ground
P2133 APP Throttle/Pedal Position Sensor/Switch F Circuit High Input--- Short to voltage, signal return open, APP sensor
P2138 APP Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation --- Difference in sensor readings
P2139 APP Throttle/Pedal Position Sensor/Switch D/F Voltage Correlation --- Difference in sensor readings
P2140 APP Throttle/Pedal Position Sensor/Switch E/F Voltage Correlation --- Difference in sensor readings




Notice the two you are getting are the difference in circuit F whenever it's compared to one of the other 2 circuits.


Circuit F is not shorted to ground or stuck high.


.

 

So would you think circuit F would be APP 3? I see in the coffee table book there are 7 wires from the APP...APP 1 2 and 3 which go straight to pcm, vref which shares with map and baro I believe, vref 2, signal return, ground

Or am I thinking of this wrong

 

That would be my guess but not really sure what circuit # goes with what circuit letter.

That makes 7, you are thinking correctly.

Crazy as it sounds I am thinking firmware/software. There's nothing else left except for the connections from the APP to the PCM.

Has it ever acted up and/or had the codes on the stock tune?

.

 

the only thing you didn't re-construct was hitting it with snow or water , not that the engine bay would get wet but wheel wells or areas that would represent water Intrusion bottom side of Cam sensor and wires, possibly PCM and battery plate, still Brain storming

 

Yea and when I had the hood open I noticed all these wires get plastered in road crap. Don't mind the 3 wires going to my gauge sensor


Also I can't remember the last time my truck was in the srock tune

 

Miles see the two wires that are white looking right side degus Y ? In-between the Master Cylinder? pinch those.