So I've been looking to find a canopy for my truck and took a trip to our local Coeur d'Alene to meet up with a guy that had a canopy. Unfortunately it wasn't what I was looking for but when I left, pulled out on the main drag and was starting to accelerate up to the speed limit of 35mph and my truck died, no sputter, just a jolt from the engine dying.
I pushed the clutch in and made it into a parking lot, turned the key off then started her back up again and without problems the rest of the trip. The only light that came on was the SES light.

Does anyone have any ideas as to what the problem may be?

I know my EBPS is stuck at 24#'s and I'm ordering a replacement right now. Could it be ICP?

I know this one will be a bugger to troubleshoot since it's not consistant.

I nthe past 6 months I have put on a 6637 air filter, changed the oil twice (every 5K), installed the .50 cent mod and a HPOP cross over tube.

 

The code would be helpful, but on these trucks the first thing we usually think of with the truck dying is the CPS. Do you have a spare? Most of us carry a spare CPS in the glove box to be on the safe side.

 

Yea, I put a black one on earlier this year as well and I do have a spare grey in the glove box just incase. I'm wondering if it is the IPR or ICPS.

Edit: oh and as a side note, I'll be pulling my codes tonight and see if the PCM has anything of use to say.

 

I'd say it's worth checking the wiring on both the IPR and ICP since if the insulation on those wires becomes brittle and they short together, they can cause problems. As I mentioned, if we knew the code things would be easier.

Since you have a spare CPS, I'd start by inspecting the wires on the IPR & ICP. If that looks good, swap the CPS, but hang onto the black one in case that's not the issue. Checking the things that don't cost any money is always a good place to start.

 

OK, so I just pulled the data from my truck and got a lot of info. I collected data, logged data, ran tests, all sorts of stuff and here is what I have........

P0470 - Exhaust pressure Sensor
P0478 - Exhaust pressure Control Valve High
P1211 - Injector Pressure Higher/Lower Than Desired (engine running)
P1249 - Wastgate Control Valve Performance
P0605 - Internal Control Module Read Only Memory (ROM) Error
P1298 - Injector Driver Module Failure

Now I know that my exhaust pressure sensor is bad and I already plan on replacing it. I did some data logging with a buddy in the passenger seat and we noticed that the pressure sensor would fluctuate around 20 to 40 but when the exhaust pressure went above that it would 0 out.

I think the P1211 and P1249 came up because at times when running down the highway (75MPH) I'd bump it to 90 or so just screwing around or to pass someone. That is when the SES light would typically come on.

Regarding the P0605 error, I think this is caused because I have a SuperChip on it. This is a chip that came with the truck and I did pull it during the logging to see if some of my sensors would come back online.

Regarding the P1298, this started accuring (to my knowledge) after doing the IDM Mod. Maybe I should replace my IDM?

Now to get to the sensors that are reading "0"......

Fuel Pessure (PSI) 0-0psi and only ever read 0
Gear Commanded (State) 0-8 and only ever read 0 or 2
Accelerator Pedal Pos (%) 0.00 - 100.00 and only ever read 11.37 but the truck seems to drive fine.
Injector Control Pressure (PSI) 0.00 - 5076.32 and seemed to always be about 400 to 600

I will pull some more data and log it to a excel sheet as the one I was reading from seemed to be missing quite a bit of data but this is what I have thus far.

I will inspect those wires and let you know what I find....

 

I uploaded the excel log file here........... MEGAUPLOAD - The leading online storage and file delivery service
It is a short clip of the logging that I have done but it is very accurate in its information, much more then before as my buddy was flipping through sensors, looking at which ones were reading and which ones were not.

Also, this log file was done with the SuperChip in but the data seems to be the same.

Maybe I should run without the SuperChip for a while but when I did I definitely noticed a difference and HP, not near as much power without that little chunk of junk.

 

We need input from others who have done the IDM mod to see if they're getting this code. Your sig says a IDM 75k mod? Most mod their IDM up from 120 to 140. Why do you have 75k listed?

 

that's because that is the resistor that you replace to take the IDM on these early trucks from 110v to 140v

 

That makes sense then. I'd still check the wires.

 

Oh yea, forgot about that. I checked the wires, they look pretty around the engine area but maybe I should pull the wheel well again and check under there more thoroughly. It was raining and dark when I checked so it was a quick check.