Engine/Transmission (1998.5 - 2002) Check Engine Light

[jrandol]

Crap!! Check Engine Light came on this evening heading home from work for what seems to be no apparent reason. Truck running cool, oil was changed Saturday, added coolant as well. Oh, new lift pump added Saturday as well. Pull into the drive at home and let her idle to cool down and its running a little rough. Dont seem to notice any power loss with the box turned off. Any idea what it might be? I will call the dealer tomorrow to see if I can get it in Friday. Uh Oh!



Jeff

 

[jrandol]

I just checked the codes set:



p1690

p1693



What do these mean?



Jeff

 

[Lordsman]

Codes

http://www.autotap.com/codes.asp[/URL]



Been a while since I've tried this but check this site out.

Looks like a ECM fault of some sort.

 

[jrandol]

Ah Crap, this doesnt sound good. Any input?



p1690



Fuel injection pump CKP Sensor Does Not Agree With ECM CKP Sensor

 

[jrollins]

Originally posted by jrandol

Ah Crap, this doesnt sound good. Any input?



p1690



Fuel injection pump CKP Sensor Does Not Agree With ECM CKP Sensor

Could be a bad CKP sensor

 

[OL RATLR]

check all your conections on your Fueling box then cycle key off key on

3 times see if check engine light goes out.

3rd time start truck.