codes bad vp ?

odieub

odieub

Member
Joined
Nov 6, 2007
Messages
923
Have a buddy with bone stock 01 stick truck. Well died today and wont start pulled codes with Smarty p252 p1691 p1688 p230 and p1693. Best I can tell lift pump is junk as is VP. And when u cycle key u can't here lift pump run. Any ideas.
 
P0252 ????

P1691
Fuel Injection Pump Controller Calibration Failure

P1688
Internal Fuel Injection Pump Controller Failure

P0230
Transfer pump Circuit Out Of Range

P1693
DTC Detected In ECM Or PCM

Great resorce here:
Listing of DTC Codes for 2nd Gen - Competition Diesel.Com - Bringing The BEST Together


Looks like they got some bad juju goin' on. Have someone put a VP test box on the VP and try to start the truck independently of the ECM before you drop $$$ on a VP. Rule out wiring and ECM first. The ECM controls both of those.
 
This should help...

DTC P0252: FUEL VALVE SIGNAL MISSING

Monitor & Set Conditions

Fuel injection pump fuel valve circuit is monitored after current feedback monitoring is complete and average engine speed is greater than 700 RPM. DTC may be stored when Engine Control Module (ECM) does not receive a signal from the solenoid valve to indicate valve movement.

Possible Causes

Fuel Injection Pump

Testing

Turn ignition on. Using DRBIII(R) scan tool, erase any ECM DTCs. Test drive vehicle. Using scan tool, recheck for ECM DTCs. If DTC P0252 resets, replace fuel injection pump. See appropriate REMOVAL, OVERHAUL & INSTALLATION article. If DTC P0252 does not reset, test is complete.
 
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