Trumbull_welding Posted March 4 Share Posted March 4 Afternoon all, Having an issue with a chn 613 e7 aset the truck ran out of fuel in the passenger side tank had about half tank on the drive side when I got to the truck I fueled it up and primed it got it to sputter and start a few times then no start at all checked cam and crank sense both good. Filters full etc, I then put a gauge on it and was reading 0 psi when cranking I put a fuel pump in it new filters full when installed took a little longer than expected to get fuel back at the lines but got adequate fuel flow after lots of primer pumping , cracked three lines and she started pretty easily and good fuel pressure while running. Truck went on the road today after idling for about 45 minutes made it 5 minutes down the road and shut down both tanks are completely full truck dose not appear to have lost prime. They pulled and cleaned a couple relays and said the truck started and ran for 30 minutes at adle then they ran it for 15 at 1500 rpm and the truck shut down and didn’t sound like it ran empty just shut off. I’m going to plug it into the computer when I get there shortly. Any thoughts? thanks I’m advance! Quote Link to comment https://www.bigmacktrucks.com/topic/73927-06-chn-613-fuel-problem/ Share on other sites More sharing options...
fjh Posted March 4 Share Posted March 4 2 hours ago, Trumbull_welding said: Afternoon all, Having an issue with a chn 613 e7 aset the truck ran out of fuel in the passenger side tank had about half tank on the drive side when I got to the truck I fueled it up and primed it got it to sputter and start a few times then no start at all checked cam and crank sense both good. Filters full etc, I then put a gauge on it and was reading 0 psi when cranking I put a fuel pump in it new filters full when installed took a little longer than expected to get fuel back at the lines but got adequate fuel flow after lots of primer pumping , cracked three lines and she started pretty easily and good fuel pressure while running. Truck went on the road today after idling for about 45 minutes made it 5 minutes down the road and shut down both tanks are completely full truck dose not appear to have lost prime. They pulled and cleaned a couple relays and said the truck started and ran for 30 minutes at adle then they ran it for 15 at 1500 rpm and the truck shut down and didn’t sound like it ran empty just shut off. I’m going to plug it into the computer when I get there shortly. Any thoughts? thanks I’m advance! Yup check the codes! howerver Does it shut off clean or sputter to a stop! =fuel issue ! Stops clean = Electrical! 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73927-06-chn-613-fuel-problem/#findComment-547593 Share on other sites More sharing options...
Trumbull_welding Posted March 4 Author Share Posted March 4 24 minutes ago, fjh said: Yup check the codes! howerver Does it shut off clean or sputter to a stop! =fuel issue ! Stops clean = Electrical! Just got to the truck hooked up a fuel pressure gauge getting over 60psi cranking and have blink codes 5-9, 5-8, and 8-1 the 8-1 has since gone away and the first two seam to alternate one or the other. And I wasn’t here when it shut down but from what they told me just a sharp turn off. Plugging the laptop in now be back shortly with actual codes. Thank you sir Quote Link to comment https://www.bigmacktrucks.com/topic/73927-06-chn-613-fuel-problem/#findComment-547594 Share on other sites More sharing options...
Trumbull_welding Posted March 4 Author Share Posted March 4 Two active codes 33045 : MID128 injection ecu, sid:277, fmi5 low current or open circut egr exhaust gas temperature mid128:injection ecu, pid412, fmi5 low current or open circuit memory codes 33037 : mid128 injection ecu, sid269,fmi4 lo voltage or short circuit to earth code for each injector all the same being mid 128 injection ecu, sid1, fmi6 high current or short to ground and last one is control unit 1 faulty: mid128 injection ecu, sid254, fmi4 low voltage or short to earth Quote Link to comment https://www.bigmacktrucks.com/topic/73927-06-chn-613-fuel-problem/#findComment-547595 Share on other sites More sharing options...
fjh Posted March 5 Share Posted March 5 Un plug the eecu and check for coolant at the plug! 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73927-06-chn-613-fuel-problem/#findComment-547629 Share on other sites More sharing options...
Trumbull_welding Posted March 6 Author Share Posted March 6 On 3/5/2024 at 8:20 AM, fjh said: Un plug the eecu and check for coolant at the plug! No coolant in the ecu plug very slight oil wicking cleaned it out with electrical cleaner and blew out with air made no change, popped the plug apart and inspected from the backside everything looks good, I have 12v battery and 12v key on at the top right plug on the computer found ground at multiple pins coming out off the computer at the other ports but no power at any of the other ports I assume I should be getting some kind of reference or supply voltage comping out of the big port on the left side of the computer no? Also ran a jumper ground wire between ecu housing and engine ground. all the memory codes are gone just have two active PID:412 FMI:5 egr exhaust gas temp: low current or open circuit SID:254 FMI:4 low voltage or short to ground Quote Link to comment https://www.bigmacktrucks.com/topic/73927-06-chn-613-fuel-problem/#findComment-547679 Share on other sites More sharing options...
fjh Posted March 6 Share Posted March 6 Hmm ! Not a guru on this ! You checked the block grounds and battery nite switch connections ? Quote Link to comment https://www.bigmacktrucks.com/topic/73927-06-chn-613-fuel-problem/#findComment-547681 Share on other sites More sharing options...
Trumbull_welding Posted March 6 Author Share Posted March 6 2 hours ago, fjh said: Hmm ! Not a guru on this ! You checked the block grounds and battery nite switch connections ? Me either lol! Yes sir cleaned all the grounds with a scotch bright wheel and put back togather, battery’s are all good also checked the ground breaker on the firewall and cleaned the connections up there, no easily visible wiring issues without tearing into loom or pulling wiring out from behind eup’s. Quote Link to comment https://www.bigmacktrucks.com/topic/73927-06-chn-613-fuel-problem/#findComment-547684 Share on other sites More sharing options...
fjh Posted March 6 Share Posted March 6 10 minutes ago, Trumbull_welding said: Me either lol! Yes sir cleaned all the grounds with a scotch bright wheel and put back togather, battery’s are all good also checked the ground breaker on the firewall and cleaned the connections up there, no easily visible wiring issues without tearing into loom or pulling wiring out from behind eup’s. Is there and under hood fuse panel? If so check it for green fusses ect maybe swap some relays around also you could have a bad relay! Quote Link to comment https://www.bigmacktrucks.com/topic/73927-06-chn-613-fuel-problem/#findComment-547686 Share on other sites More sharing options...
Trumbull_welding Posted March 6 Author Share Posted March 6 6 minutes ago, fjh said: Is there and under hood fuse panel? If so check it for green fusses ect maybe swap some relays around also you could have a bad relay! Unfortunately already done under hood and in cab found one relay on the fire wall that was a little green but it was functioning and I swapped it with another to make sure Quote Link to comment https://www.bigmacktrucks.com/topic/73927-06-chn-613-fuel-problem/#findComment-547688 Share on other sites More sharing options...
fjh Posted March 7 Share Posted March 7 6 hours ago, Trumbull_welding said: Unfortunately already done under hood and in cab found one relay on the fire wall that was a little green but it was functioning and I swapped it with another to make sure Not sure you’re truck has this but there was a fuse panel to to the left of the clutch up the side that gave issues at a point epdm panel think it was called there was a tsb for it we replaced dozens of these panels and installed a bandaid boot around the panel Quote Link to comment https://www.bigmacktrucks.com/topic/73927-06-chn-613-fuel-problem/#findComment-547732 Share on other sites More sharing options...
Trumbull_welding Posted March 8 Author Share Posted March 8 From the digging around I did so far I don’t believe it has a fuse box on the drivers side In the cab it does have one passenger side dash I’ll double check tomorrow Quote Link to comment https://www.bigmacktrucks.com/topic/73927-06-chn-613-fuel-problem/#findComment-547790 Share on other sites More sharing options...
fjh Posted March 8 Share Posted March 8 12 hours ago, Trumbull_welding said: From the digging around I did so far I don’t believe it has a fuse box on the drivers side In the cab it does have one passenger side dash I’ll double check tomorrow If it doesn't then disregard the comment It was just a thought! These gave quite a few problems on the units that have them! Sorry not being much help here just Grasping at solutions like you! 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73927-06-chn-613-fuel-problem/#findComment-547805 Share on other sites More sharing options...
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