2000 powerstroke trouble shooting help!
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Freshman User
Joined: Mar 2009
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From: Strasburg
2000 powerstroke trouble shooting help!
I have a 2000 powerstroke that is pouring white smoke. I have tried a LOT and even bought the autoenginuity package to read codes.
256k miles- bought as a project (...beats head against wall)
previous owner used it for plowing last year. started it back up this fall and it was smoking. Dealer told him it needed new injectors (2 injectors failed buzz test)
So far i have done...
new injectors
new gaskets/wire harness
new turbo
new ICP sensor
new fuel filter
oil change
Still POURS white smoke (smells like fuel).
codes- p1280 and p1212- which is why i changed ICP
ICP duty cycle is 14-15
Injector controll pressure- 1500-2000 at start up and runs about 800-1000 while running
MAP- 14.3
MAP Hz- 0.0 (would this mean map sensor? would a MAP cause that much white smoke??!?!)
NO mixing of fuel/coolant or oil/coolant
no loss in oil or loss of coolant
fuel pressure seems really high (100 or so while running- 40-60 before starting)
sorry for the book- tried to include everything i know. any help would be greatly appreciated to help keep my sanity.
256k miles- bought as a project (...beats head against wall)
previous owner used it for plowing last year. started it back up this fall and it was smoking. Dealer told him it needed new injectors (2 injectors failed buzz test)
So far i have done...
new injectors
new gaskets/wire harness
new turbo
new ICP sensor
new fuel filter
oil change
Still POURS white smoke (smells like fuel).
codes- p1280 and p1212- which is why i changed ICP
ICP duty cycle is 14-15
Injector controll pressure- 1500-2000 at start up and runs about 800-1000 while running
MAP- 14.3
MAP Hz- 0.0 (would this mean map sensor? would a MAP cause that much white smoke??!?!)
NO mixing of fuel/coolant or oil/coolant
no loss in oil or loss of coolant
fuel pressure seems really high (100 or so while running- 40-60 before starting)
sorry for the book- tried to include everything i know. any help would be greatly appreciated to help keep my sanity.
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
Something is seriously wrong in there:
Fuel pressure doesn't need to be much over 60 PSI to run nice - look to an out-of-place spring in the fuel pressure regulator.
ICP is just under 500 PSI at idle on a stock engine when the Engine Oil Temperature approaches 100 degrees F or so. IPR should land close to 10% on a warm engine during idle. A cold engine (while idling) will have about 700 PSI ICP - 800-1000 PSI at idle is just silly. Even with a bad ICP sensor, the ICP should never idle that high. Either you have some crazy voltage references in there, a very bad sensor, or custom tuning that had some goal in mind without considering other factors.
MAP hz serves no purpose that I know of, we need MAP PSI, EBP PSI, and BARO PSI or volts (Key On, Engine Off for the first reading).
Fuel pressure doesn't need to be much over 60 PSI to run nice - look to an out-of-place spring in the fuel pressure regulator.
ICP is just under 500 PSI at idle on a stock engine when the Engine Oil Temperature approaches 100 degrees F or so. IPR should land close to 10% on a warm engine during idle. A cold engine (while idling) will have about 700 PSI ICP - 800-1000 PSI at idle is just silly. Even with a bad ICP sensor, the ICP should never idle that high. Either you have some crazy voltage references in there, a very bad sensor, or custom tuning that had some goal in mind without considering other factors.
MAP hz serves no purpose that I know of, we need MAP PSI, EBP PSI, and BARO PSI or volts (Key On, Engine Off for the first reading).
Lead Driver
Joined: Jun 2004
Posts: 6,340
Likes: 588
From: Amarillo, TEXAS!
MAP sensor frequency doesn't apply to Super Duty trucks, as they have analog MAP sensors. The OBS trucks have digital MAP sensors, so that's where the frequency reading comes from. Any idea if the dealer the previous owner took the truck to did a compression test? Does the cranking speed sound even or uneven (like there was a low compression cylinder)?
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Freshman User
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From: Strasburg
thanks for the suggestions. i had not let the truck idle too long as i was afraid to do more damage. I went ahead and allowed the oil temp to increase and the ICP fell down below 600.
MAP PSI- 14.2
EBP PSI- 16.31
BARO PSI- 148
Baro volts- 4.49v
i knew i forgot to include something initially- compression on all 8 cylinders is over 330 so that should be fine.
did a buzz test on the new injectors to make sure they were all registering and they sounded consistent. The truck starts fairly easy and runs ok. if it wasnt for the white smoke i wouldnt necessarily think anything was wrong with it.
i had read a few forums that mentioned the fuel pressure regulator/spring. i am going to try to check that next.
Thanks again!
MAP PSI- 14.2
EBP PSI- 16.31
BARO PSI- 148
Baro volts- 4.49v
i knew i forgot to include something initially- compression on all 8 cylinders is over 330 so that should be fine.
did a buzz test on the new injectors to make sure they were all registering and they sounded consistent. The truck starts fairly easy and runs ok. if it wasnt for the white smoke i wouldnt necessarily think anything was wrong with it.
i had read a few forums that mentioned the fuel pressure regulator/spring. i am going to try to check that next.
Thanks again!
Lead Driver
Joined: Jun 2004
Posts: 6,340
Likes: 588
From: Amarillo, TEXAS!
The thing that makes no sense here is that the fuel pressure is higher when running. I can't think of a logical reason for that.
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From: Strasburg
right after i changed the injectors i ran it about 5 miles to get the oil out of the system since i read it would smoke a lot right after changing them. had it started and idling quite a few time since then as well.
i just pulled apart the fuel regulator and spring and everything looks clean. no blockage to return line or anything. im starting to wonder if the fuel pressure gauge isnt crap. it was in there when i got the truck so i cant vow its good. key on and engine off it sets like 50-60 but as soon as its running it is at 100 (which is highest reading on gauge). could be blown out
i just pulled apart the fuel regulator and spring and everything looks clean. no blockage to return line or anything. im starting to wonder if the fuel pressure gauge isnt crap. it was in there when i got the truck so i cant vow its good. key on and engine off it sets like 50-60 but as soon as its running it is at 100 (which is highest reading on gauge). could be blown out
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Thread Starter
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Freshman User
Joined: Mar 2009
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From: Strasburg
would a bad CPS possibly cause smoke? I didnt think to swap out the CPS because I usually associate that with no start or will not run scenario. Someone brought it up and said they had a smoke issue, changed the CPS and it fixed it. I already have one at the house so I hoping to get time to give it a try. I'm not too optimistic as it doesnt explain the high fuel pressure. i checked the gauge by installing it in my cummins- stayed steady and worked fine.
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