no fuel to injectors with ds4

[85-m1028]

I hooked everything up on my engine and am trying to test fire. most everything is new
heres what ive tested so far.

elec fuel pump/ good
shut off solenoid/ good
glow plugs and controler/ good

I've tried a few crank sessions with both injector lines at the front "both sides" cracked open, no fuel has come weeping out?

The injection pump has fuel in it I.E. it's been run on this engine before I got it. Brand new engine run for about 5000 miles and put in storage. I now am trying to get it up and running nearly 10yrs later.

it's the 97 engine for my blazer project...

Also wondering if this thing will run with no accelerator pedal plugged in? I dont have one for this engine yet but I can use the one out of my pickup if I need to..

I just want to do a little shake down run to make sure everythings in order..

[simon]

ofcause you need the pedal, its like trying shifting your tranny without the stickshift in it

[Robyn]

Without the PPS (Pedal posisition sensor) hooked up the ECM will not allow a start as there would be no control of the fuel.

Everything on the rig has to be hooked up for the DS4 to opperate.

Hope this helps

Robyn

[85-m1028]

thanks!! I'll give that a go, I'm very excited now!!

[85-m1028]

ok I tried a few crank sessions with the pedal plugged in, I got a little weep from injector #2 but haven't got fuel to any others.

I had one plug with 5 wires that I traced

1 for the glow plug light "does work" no problems there.

1 that goes to the oil pressure switch, no voltage present when on or start. I originaly thought it was to power fuel pump relay but now ??

1 wire that goes to pin 14 on the ECM blue block 32pin connector
I'm thinking this is the signal for the "check engine light"?

2 wires that go to the speedo pickup at the t-case tail housing

Mabe I'm missing something? or maybe I just have air in system that needs to bleed out?
does the oil pressure switch need power?
pin 14 need some voltage?

[rameye]

manually turn on fuel pump...(jump out)
disconnect glow circuit
bleed out filter, bleed out water purge, bleed to inlet on pump
keep pump running 1 hr
break all lines on drivers side (and wherever you can get to!)
crank like hell... 30 seconds max...(5-10 minute breather) gonna take some time
when they all get wet and weepy tighten them up
reconnect glow circuit
fire away

good luck we've all been there!