ICP CIRCUT OUT OF RANGE "LOW" AND EXHAUST BACK PRESSURE SENSOR CIRCUT ERROR
#1
Icp Circut Out Of Range "low" And Exhaust Back Pressure Sensor Circut Error
Please Help ..........what Would Cause These Codes To Appear On My Scmt ..and How To Remedy Them Thanks In Advance Any And Everyone. OOOPS ALMOST FORGOT ITS A 1997 F250 CREW CAB 4X4 POWERSTROKE WITH 54700 MILES ON IT.....
Last edited by cmrclgc; 05-05-2004 at 04:51 PM.
#2
Z1 DIAGNOSTIC TROUBLE CODE (DTC) P1280: ICP CIRCUIT LOW INPUT
DTC P1280 indicates injector control signal circuit out of range low was detected during KOEO Self Test or during continuous diagnostic monitoring.
Possible causes:
biased ICP sensor/PCM
open ICP sensor circuit
short to SIG RTN or PWR GND on ICP sensor circuit
open in VREF circuit
DTC P0470 indicates an EBP sensor malfunction was detected during KOEO On-Demand Self Test.
Possible causes:
damaged EBP sensor
open signal ground
damaged PCM
Probably replace EBP sensor, ICP may need some diag. have you cleared codes to see if they return? Are these memory codes, or hard faults?
DTC P1280 indicates injector control signal circuit out of range low was detected during KOEO Self Test or during continuous diagnostic monitoring.
Possible causes:
biased ICP sensor/PCM
open ICP sensor circuit
short to SIG RTN or PWR GND on ICP sensor circuit
open in VREF circuit
DTC P0470 indicates an EBP sensor malfunction was detected during KOEO On-Demand Self Test.
Possible causes:
damaged EBP sensor
open signal ground
damaged PCM
Probably replace EBP sensor, ICP may need some diag. have you cleared codes to see if they return? Are these memory codes, or hard faults?
#3
memory codes..... just got done resetting will take for drive and recheck.... thanks for the info.....what is the normal position of the control rod lookin at it from the front of the motor should it be towards the drivers side.....and if so is that the normally open or closed position...? sorry as far as the ebp goes thanks again...!
Last edited by cmrclgc; 05-05-2004 at 09:16 PM.
#4
#6
Originally Posted by Fordtech1
Yes, the driver's side, normally open; when cold, oil pressure from the EBP solenoid will push the rod to the pass. side. The EBP sensor is in the front of the engine on a tube from the right exhaust manifold and is susceptible to sticking at higher than base voltage.
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