Diesel Bombers - code 1690?

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- 24 Valve 2nd Gen Dodge Cummins 98.5-02 (https://www.dieselbombers.com/24-valve-2nd-gen-dodge-cummins-98-5-02/)

- - code 1690? (https://www.dieselbombers.com/24-valve-2nd-gen-dodge-cummins-98-5-02/55025-code-1690-a.html)

98dodgecummins

07-22-2010 06:03 PM

code 1690?

Is their a way to fix the code 1690 without replacing the injection pump. it seems like my truck has a little miss at idle. Or is the code 1690 even a problem. Thank You.

12vcummins96

07-22-2010 07:35 PM

a p1690 is somthing wrong with your malfunction indicator light :humm:

98dodgecummins

07-22-2010 08:37 PM

anyone else know what this code is?

RAW	07-22-2010 09:26 PM

P1690 Fuel Injection Pump CKP Sensor Does Not Agree With ECM CKP Sensor

Thats what I found by Google searching it. This seems to have quite a bit of knowledge in it as well:

Diesel engine, Code P1690 Fuel Injection Pump C... - JustAnswer

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