54 chevy panel wagon

[M4wdFab]

Auto city classic has front and side glass, front seal for 611 shipped, i guess not too bad.  6 week lead on the front windshield though. 

[M4wdFab]

s10 axle got new outer wheel seals, gear oil, pads, rotors, bleeders freed up, new brake hoses.   proper lugnuts ready to send.  Has the factor Zr5 GM locker and 3.73 gears, not bad for luck of draw. 

cleaned out mouse house packed in front IFS crossmember

cut out rear spare tire tin for room for XJ tank 

[M4wdFab]

new front glass in and fuel tank/filler neck in today. 

[M4wdFab]

that was alot of work to assemble to front end!  looking good though. 

[mr.mindless]

That’s looking patina GOOD

[M4wdFab]

trans cooler plumbed in
gages plumbed in
brake hard lines started

PCM fashed for 5.3/4l60e DBW P59

[M4wdFab]

full exhaust fab'd today and done.

needs fuel and should fire and move. 

[M4wdFab]

lots of fail today on this. 


took way too long to realize i have the fuel pump plumbed in backwards to get fuel pressure.

fired right up after that.  thought i was good. 

a few rips of throttle and dies.  DBW petal dead, no fire. 

many codes with alternator, knock sensor, and TAC comunication loss. 


i dont get it.  hard reset gets it back to starting and idle.  Snapon cod reader says both APPS output from petal match and agree before, durring, and after what ever causes the malfunction to kill the engine and be un happy. 


bah. 

[gif]

factory harness?  start looking for ground issues.

lots of fail today on this. 


took way too long to realize i have the fuel pump plumbed in backwards to get fuel pressure.

fired right up after that.  thought i was good. 

a few rips of throttle and dies.  DBW petal dead, no fire. 

many codes with alternator, knock sensor, and TAC comunication loss. 


i dont get it.  hard reset gets it back to starting and idle.  Snapon cod reader says both APPS output from petal match and agree before, durring, and after what ever causes the malfunction to kill the engine and be un happy. 


bah.

[M4wdFab]

ya that was the first thing i checked, all checked out good.  there are just 2 factory harness grounds on the back of the intake that all LS harness have.  i have good grounds to frame, chassis, engine head. 

[M4wdFab]

about whooped on this- rechecked and cleaned all hard to get at engine harness grounds, added a ground the the TAC module.  traced out my harness work, and only 4 TAC related wires cut are for cruise.  they are isolated and heatshrunk out of the way. 

nothing.


same issue if engine running or not. 

Electronic throttle will function if you wrap it 0 to 100 % indefinitely.  if you sweep it slower or stop in any place.  it sets code and goes to limp mode.  U0107 (lost communication with throttle actuator) and P0654 (Engine speed output circuit problem) set.


im in more time that it would be to pull the entire harness and convert this engine over to drive by cable.  bah. 

[mr.mindless]

I'd be trading parts with another compatible rig on both ends - pedal and throttle body - and see if the issue stays with the harness or follows the changeable parts. That description immediately reminds me of the bad APPS you had on your 24v Cummins.

I think I have a throttle body on the shelf from the 6.0 that went into my car if you don't, can check when I get home. I only have a VW pedal, doubt it's plug compatible but if both are Bosch it may be the same guts in the box.

[M4wdFab]

i dont have any DBW stuff here, most of what i do is VANs that are still cable in the newer PCMs.


i am slightly suspect that the ETC is the problem but it was fine lot driving the truck so i dont know. 

if you have the ETC can your bring it wednesday to meeting thanks

[Wingman]

I have a spare TAC box

[M4wdFab]

please also bring wednesday.


i guess i need to start grabing them at the yard.  spendy at auto stores