bulletbob1574

i have a thread on the emergency thread but i thought that maybe yall can help too
my truck just stopped i had a 1/8 tank of fuel and the gas pedal went limp and the truck just died.
i replaced the fuel filter and tried to prime the filter for 30 min bumping the starter and listening for the injector pump to stop before bumping it again
i had to have the truck towed back to my house and i found out how to read the codes and the only one that it is throwing is p 1693 which i looked up and it is as followes (DTC detected in Companion Module A fault has been generated in the companion engine control module.) now what doed that mean everything that i have found is about moding the comp mine is bone stock except for a 5in exhaust.

any theories i need my truck for work and without it i cant work much.

bobby

thanks for your time and consideration

2500superram

crack the injector line's to let the air out,while bumping the starter

bulletbob1574

thanks ill try that

nickg

have you added fuel to the tank?? common to run out of fuel at 1/4 tank

sheriffav8r

Yeah, fill the tank and crack the injector lines....

SIXSLUG

IIRC when mine threw the 1693 code I ended up replacing the ECM. There were some compaion codes with it but I can't locate my notes on this. If I can find them I'll post up.

PS> Its a 5.9 liter

bulletbob1574

i have cracked the injector lines and bled #1,3,4 and now it trys to start better but it still wont start.

HELP PLEASE

Tacomaman87

battery charger first and open all the lines you can get to then till they are bled. did you wait after you got the 1693 to see if anything else came up or did you just get the 1693 and then p done?

johnh

most important....are you getting adequate fuel at the injectors? when you "crack the injectors" just barely loosen them.... almost tight, just enough to leak while cranking.
if you loosen them too much it will not start

bulletbob1574

i just got the 1693 then p done

and i cant get #2 to loosen i cant get a wrench to turn there is not enough room to turn it and i havent tried #5,6 yet now it is to dark to see anyways

i guess ill try again tommorrow

thanks everyone for your help

bigjohn862

Add some fuel!! Mine did the same thing had it towed home come to find out fuel gauge went south!! It was showing about 1/8 of a tank.

bulletbob1574

i just opened the 5th injector and primed it and it still wont start i have a half a tank of diesel in it and it is still only showing code 1693

i am lost i guess a mechanic is the key there goes my new tires lol

dodgeguy71

My truck is pretty stubborn, I could crack the lines on some other diesels, mayber 2-3 lines and they would fire off, smoke, run rough and then clear up. My Cummins though, think the last time I had to do it, I just cracked all 6 lines and cranked her over, tightened them up and started. It's easier if you have someone there to crank for you that way you can watch the fuel spray, should be a little squirt out around the hole in the nut where the line goes thru.

johnh

you need to have your codes read with a scanner, 1693 is a companion code that tells you there's a code stored in the ECM & PCM............ auto zone or checker will scan it free

bulletbob1574

the problem is that i cant get it started to get it to auto zone.