my engine light is on & the following codes are coming up i was hoping someone could help me with them. 1. p0269 cylinder 3 contribution/balance fault,
Is this a HARD fault or one retrieved in memory? Does this engine misfire? If not, I'm guessing that it flagged cylinder number 3 low during cold engine start up. Otherwise you MAY have number 3 injector going south.
2. p0404 egr excessive flow,
Do you have any turbo issues? If not, either the EGR valve is not shutting fast enough or your truck needs a reflash to the latest calibration to prevent a false setting of P0404
3. p0603 internal control module kam error,
Is it chipped? Have you been playing around with the settings?
4. p0671 cylinders 1-8 glow plug circut,
Disconnect your glow plug connector on each buss bar (the one with the coloured wires) Get your DVOM (set to OHMS) out and connect the black lead of the meter to the battery negative post, and the red lead of the meter to terminal on the connector end that goes to each glow plug. You should be getting readings of 0.5 to 2.0 OHMS on each circuit. If this checks out good, either you have a wiring issue between the GPCM and the glow plug buss bar, or the GPCM itself is faulty
5. p1102 maf lower in range than expected.
Does this have an aftermarket intake? A lot of times aftermarket intakes will set this code, if you have one of those air filters that you "clean" and re-oil. If this oil gets onto the MAF, it will bugger up the MAF input to the PCM. Either that or there is a problem with the MAF circuit. Did you leave it disconnected by mistake?