95_stroker
Jefe
KansasDiesel said:
fyi..... thats VDC, and about roughly a hundred of them. Careful.
96 F350 Died on highway
- Thread starter KansasDiesel
- Start date
fyi..... thats VDC, and about roughly a hundred of them. Careful.
johndeerebones
GOT PMS?
Goof
Ya youre right is is DC doh. Just don't stand in a puddle of water and grab the wire, you will be fine, I have checked mine before when I had a miss, ended up being a burnt UVC harness from a glowplug gone bad.
Ya youre right is is DC doh. Just don't stand in a puddle of water and grab the wire, you will be fine, I have checked mine before when I had a miss, ended up being a burnt UVC harness from a glowplug gone bad.
KansasDiesel
fly'n low on WVO
95_stroker said:fyi..... thats VDC, and about roughly a hundred of them. Careful.
Ya, I was looking at the wiring dia and didn't see an converter, so I figured it was dc. Thanks for conferming that for me.
Haven't had time to check the voltage but have disconnected the valve cover plugs the front 2 had oil in them??? Problem???
johndeerebones
GOT PMS?
KansasDiesel said:
Doesn't neccessarily mean trouble. When the pins burn they do start to leak, but when I switched mine, my front connector my old valve cover gasket had oil in it, but it didn't have a problem electrically, was just leaking.
JOAT
I Found Nemo!
95_stroker said:fyi..... thats VDC, and about roughly a hundred of them. Careful.
good catch 
82FordTruck
SDD Junior Member
- Joined
- Aug 25, 2005
- Messages
- 24
- Reaction score
- 0
I ended up getting sent out of town today. Whoops.
Did you get anywhere? I should be back Friday, and will be in town Saturday all day mowing at work.
I am in agreement with the suggestion about the low pressure fuel side - I'd be curious to see how much fuel is coming out after the guage somewhere, as close to the injector as possible. Is it possible that thing is kinked, or the hose damaged internally while messing with the CPS? I am still struggling to make the connection here between the starting point and where we are now.
CPS controls timing of the injector, IDM tells it what to do, HPOP gives the injector juice, and the starter provides heat. I can't think of any reason that there would be no air at all.
Is there anything that could make it fire at the wrong time?
KD - I can't remember what you said. Did it die with a CEL and code thrown that you erased? Has it showed up at all since?
Did you get anywhere? I should be back Friday, and will be in town Saturday all day mowing at work.
I am in agreement with the suggestion about the low pressure fuel side - I'd be curious to see how much fuel is coming out after the guage somewhere, as close to the injector as possible. Is it possible that thing is kinked, or the hose damaged internally while messing with the CPS? I am still struggling to make the connection here between the starting point and where we are now.
CPS controls timing of the injector, IDM tells it what to do, HPOP gives the injector juice, and the starter provides heat. I can't think of any reason that there would be no air at all.
Is there anything that could make it fire at the wrong time?
KD - I can't remember what you said. Did it die with a CEL and code thrown that you erased? Has it showed up at all since?
KansasDiesel
fly'n low on WVO
82FordTruck said:
No problem about last night we had prayer meeting at church, yes prayed for a soultion for the truck. 82 Ford- I would appriciate the help Fri and Sat, If I can't get this running before Sat. I will need to barrow a truck or rent one. I have checked fuel from the heads, lots of flow.
I believe when the truck died the CEL was thrown then, but you know getting out on 24/40 hwy in the morning from my place your paying more attention to the traffic then the truck. I didn't clear the code till I replaced the CPS.
Question I have, Is there any connection to the failling to start and the CPS going out? If the truck died just because of the CPS common sence would say replace the CPS and all will be well. No so in my case. So is there anything that would make the CPS fail and I am not finding the initial problem?
JOAT
I Found Nemo!
The CPS error may or may not be related to the truck quitting. Could have been an old stored code. Or whatever caused the original stall may have looked like a CPS failure to the PCM. Since it is the way the PCM knows the engine is turning, if the engines stops without the PCM knowing why, all it sees is a loss of CPS signal.
Can't think of anything other than maybe a high voltage short to the CPS wiring that would kill it.
Once you try cranking with a DC voltmeter connected, we'll at least know if the IDM is trying to fire the injectors while cranking. Since we know it will buzz, the IDM seems OK. So could be a wiring problem to the CPS, or maybe a wiring issue causing a loss of voltage at the IDM, etc....
Can't think of anything other than maybe a high voltage short to the CPS wiring that would kill it.
Once you try cranking with a DC
voltmeter connected, we'll at least know if the IDM is trying to fire the injectors while cranking. Since we know it will buzz, the IDM seems OK. So could be a wiring problem to the CPS, or maybe a wiring issue causing a loss of voltage at the IDM, etc....
KansasDiesel
fly'n low on WVO
JOAT said:The CPS error may or may not be related to the truck quitting. Could have been an old stored code. Or whatever caused the original stall may have looked like a CPS failure to the PCM. Since it is the way the PCM knows the engine is turning, if the engines stops without the PCM knowing why, all it sees is a loss of CPS signal.
Can't think of anything other than maybe a high voltage short to the CPS wiring that would kill it.
Once you try cranking with a DC
Joat- Thanks look like you have a point, I installed the old CPS and I have a tack indication and no code on the CPS. Sounds like I had a false CPS indication because the truck stalled.
I am setting up to check for DC voltage from the IDM to the injectors now.
KansasDiesel
fly'n low on WVO
johndeerebones said:
I checked voltage at the valve cover plugs, just checked 2 of them. NO voltage. Checked the IDM relay *Good, checked Pwr and Gnd for the IDM both *Good.
How common is the failure of the IDM ? It is now pointing to the IDM isn't it?? Is there any place out there that will check the IDM? and How much do they usually run?