ICP no start?
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More Turbo
Joined: Jun 2007
Posts: 537
Likes: 3
From: Carvel, AB, Canada
ICP no start?
Still working on my intermittent no hard/no start. Got the truck hooked up to a Ford IDS unit right now and was able to duplicate it after a few tries. Only difference I'm seeing is the ICP not jumping during cranking. IPR is good. So, will a faulty ICP sensor cause a no start? If so, can you bypass it by unplugging it and make the truck go into a default strategy?
Hotshot
Joined: Apr 2010
Posts: 19,072
Likes: 242
From: Saratoga Springs,UT
Still working on my intermittent no hard/no start. Got the truck hooked up to a Ford IDS unit right now and was able to duplicate it after a few tries. Only difference I'm seeing is the ICP not jumping during cranking. IPR is good. So, will a faulty ICP sensor cause a no start? If so, can you bypass it by unplugging it and make the truck go into a default strategy?
also check IPR
mine runs at hot idel
640 ICP
22.5% IPR
if the IPR is like 30% or more at hot Idel you have a HPO leak
It must be checked while HOT like 190 ECT
Its got to running smoother since you got that plastic peice out of the injector???
Thread Starter
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More Turbo
Joined: Jun 2007
Posts: 537
Likes: 3
From: Carvel, AB, Canada
yes unplug the ICP truck will use a default stratigy
also check IPR
mine runs at hot idel
640 ICP
22.5% IPR
if the IPR is like 30% or more at hot Idel you have a HPO leak
It must be checked while HOT like 190 ECT
Its got to running smoother since you got that plastic peice out of the injector???
also check IPR
mine runs at hot idel
640 ICP
22.5% IPR
if the IPR is like 30% or more at hot Idel you have a HPO leak
It must be checked while HOT like 190 ECT
Its got to running smoother since you got that plastic peice out of the injector???
Cranking IPR 84.76% peak, ICP peak 15.62 MPa (2265 psi) @ 2.16 v.
When I was able to duplicate it, ICP dropped way down. While IPR was 20.05.
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More Turbo
Joined: Jun 2007
Posts: 537
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From: Carvel, AB, Canada
Ok, new ICP installed. Still cranks too much and has me worried that it will let me down again. Anyone have any thoughts on the readings? New ICP, new batteries, newer alternator, new injector o-rings, new IPR, newer STC etc....
Hotshot
Joined: Apr 2010
Posts: 19,072
Likes: 242
From: Saratoga Springs,UT
did you do anything with the standpipes and dummy plugs when you reringed the injectors
Its best to take ICP and IPR readings at hot idel 190 ect its hard to tell anything during crank
I know I said 30% IPR at hot idel thats a pretty good leak though
I think 26.17% is getting up there
I know you can hook the IPR to 12 volts and close it while you blow air into the HPOS and listen for leaks
sucks to do it to a new IPR though but it may shed some light on it
could it still have air in it
Its best to take ICP and IPR readings at hot idel 190 ect its hard to tell anything during crank
I know I said 30% IPR at hot idel thats a pretty good leak though
I think 26.17% is getting up there
I know you can hook the IPR to 12 volts and close it while you blow air into the HPOS and listen for leaks
sucks to do it to a new IPR though but it may shed some light on it
could it still have air in it
Thread Starter
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More Turbo
Joined: Jun 2007
Posts: 537
Likes: 3
From: Carvel, AB, Canada
Besides, when she wouldn't start IPR was 20.05. Fuel pressure is also good. I'm starting to wonder if it isn't the FICM
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Hotshot
Joined: Apr 2010
Posts: 19,072
Likes: 242
From: Saratoga Springs,UT
how about the dummy plugs in the HPOR on top the injectors
If you did those to Im running out of ideas theres only a pump left and I dont think its bad
good idea to check the ficm and maybe the egr valve
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