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Old 03-23-2013, 03:33 AM
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No start

Had this in 911 section with no responses so figured I try here. Post is lengthy and I apologize but all info is there I'm just missing something and don't know what it is.

Need some help y'all. Wife pulled in driveway nose up little less than 1/4 tank of fuel. Check for fuel in fuel bowl and it fills rapidly. Checked oil all is good connected AE with following results

FICM information for sync (Bit) (0-1) = 0
FICM Logic Power = 12VDC
FICM Main Power = 47VDC While Cranking
FICM Vehicle Power = 12VDC
Camshaft Position Sensor Level (Bit)(0-1) = 0
Injector Control Pressure = 1164-1178
Injector Control Pressure Desired = 1178
Injector Control Pressure Volts = 1.46-1.56VDC
Injector Control Pressure Regulator (%) 40-41

Everything looks good however it won't start no smoke or anything. No codes at all. Am I missing something? Is there a fuse that could cause this? Need help fast as truck is in in-laws driveway blocking their second car. Thanks in advance for any and all help.

Ok guys had the truck starting and running fine now she's bad to a no start again. Reading RPMs while cranking however watching the camshaft position sensor the bit 0-1 goes from 0 to 1 after 15 seconds of cranking. Got good fuel pressure not sure what it is but pulled test plug and held finger over hole and pressure blew finger off. Also the only time FICM sync went from bit 0 to bit 1 was once truck was running. This thing is not making any sense. Also checked ref. volts and it was a steady 5VDC. Any help would be greatly appreciated.
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Old 03-23-2013, 05:13 AM
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Not sure when you're getting you're IPR reading but that seems low while cranking.
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Old 03-23-2013, 06:11 AM
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The IPR reading was during cranking after 45 seconds to one minute. I just replaced IPR about a month ago. What should it be?
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Old 03-23-2013, 07:29 AM
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You mean there is no one that can give me any more help or any info on what my IPR should be? Thanks for the help
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Old 03-23-2013, 07:49 AM
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Even with the oil pressure I'm getting could this be a HP oil leak stand pipes and dummy plugs are original
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Old 03-23-2013, 09:28 AM
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Air up the HPO system using the ICP (passenger side valve cover) sensor plug hole. Try unplugging the ICP and see if it starts first.
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Old 03-23-2013, 09:36 AM
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Tried unplugging IPC sensor last night still no start. What size is the IPC sensor fitting so I can air up the HPO system. Thanks
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Old 03-23-2013, 09:42 AM
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m12x1.5. You'll have to close the IPR by supplying it 12v or by grounding pin 2 on the second connector of the PCM, but to be safe, just supple 12v to the sensor.
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Old 03-23-2013, 09:45 AM
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OK, before this get too far away from the problem, let's look at his initial post:

Quote:
FICM information for sync (Bit) (0-1) = 0 Bad
FICM Logic Power = 12VDC Good
FICM Main Power = 47VDC While Cranking Good
FICM Vehicle Power = 12VDC Good
Camshaft Position Sensor Level (Bit)(0-1) = 0 Bad
Injector Control Pressure = 1164-1178 Good
Injector Control Pressure Desired = 1178 Good
Injector Control Pressure Volts = 1.46-1.56VDC Good
Injector Control Pressure Regulator (%) 40-41 Good
The IPR doesn't need to close any more, because the ICP is reasonable. it could be higher, but the PCM is happy with the 1178 desired.

What is RED. He has no sync, so no start. It is probably the plug at the CMP sensor. Start trouble shooting at the camshaft position sensor. Check for continuity. Do the same for the crankshaft position sensor and wiring. Both of these can get corroded. I believe if the CKP is no sync, the CKP is generating no signal, the IPR will default to 14% and ICP will be at 300psi (not 100% sure). BTW, you have to crank it to get sync.

Last edited by twoicebergs; 03-23-2013 at 10:09 AM. Reason: more info
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Old 03-23-2013, 09:55 AM
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I was wondering about the cam and crank position sensors but wasn't for sure what the 0 bit on AE ment one of the will flash to a 1 while cranking. At 10:00 pm I gave up at work now will check tonight and let y'all know what I find. Thanks for the help
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