OK Guys,
Just a simple question, I have a box stock,' 01 qcab 3500 with a 5.9 L Cummins 6speed manual, the problem is;
the tachometer is iffy along with the engine light, the light comes on the tach goes away. After a few starts the tach will come back and the light will go out a few more starts later. The Codes are P 1693 and E 0341. What kind of troubles do I have oh wise ones
Tony[]

 

P1693= Turbo Charge Control Circuit Malfunction

the E0341 is new to me. . .however if it were a P code you would have "Camshaft Position Sensor Circuit Range/Performance "

I would say you need to replace your cam and MAP sensors.