So on my way home early this week the CEL came on and the truck just died. After coasting to the side of the road it fired right back up. I drove home replaced the CPS with a new Motorcraft spare, cleaned the fuel bowl and put in a new filter, changed the oil, and ordered an AutoEnginuity scanner from Riffraff. The codes set were P0603 and P1212 (ICP pressure lower than desired) which I think is the most relevant one. Here are the results of my troubleshooting so far (trying to duplicate the Riffraff ICP/IPR troubleshooting example).
------------------------ICP-----ICP--------ICP
-----------------RPM--Volts---Pressure---DC%
KOEO.............0.0--4.73-----0.0-------14.84
@Idle............650--4.73-----724-------14.45
Above Idle....1580--4.73-----738-------12.50
Truck was not fully warmed up, just idled a little prior to test. These numbers don't mean much to me. The ICP volts look very suspicious... they are nothing like example AE screen shots on the Riffraff website, or what I've read that the ICP voltage should be? So any light you guys could shed on these numbers would be greatly appreciated. I'm really puzzled about the ICP voltage... is this the PCM taking over after it sensed an error condition, or is this bogus measurements out of AE? Does this mean the ICP is bad? Next steps? Jim
1997 F250 XLT SC 4X4, PSD, E40D, 4.10LS, 144K, Stock as a rock.
------------------------ICP-----ICP--------ICP
-----------------RPM--Volts---Pressure---DC%
KOEO.............0.0--4.73-----0.0-------14.84
@Idle............650--4.73-----724-------14.45
Above Idle....1580--4.73-----738-------12.50
Truck was not fully warmed up, just idled a little prior to test. These numbers don't mean much to me. The ICP volts look very suspicious... they are nothing like example AE screen shots on the Riffraff website, or what I've read that the ICP voltage should be? So any light you guys could shed on these numbers would be greatly appreciated. I'm really puzzled about the ICP voltage... is this the PCM taking over after it sensed an error condition, or is this bogus measurements out of AE? Does this mean the ICP is bad? Next steps? Jim
1997 F250 XLT SC 4X4, PSD, E40D, 4.10LS, 144K, Stock as a rock.
