no fuel to injectors with ds4

[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!

[85-m1028]

well I gave it several crank sessions all injectors cracked until the lift pump stoped making noise!! so I give up for today. Doesn't seem like like it should take this much to get fuel to the injectors. must be something else..

[rameye]

The lift pump needs to make noise all the time....It will get louder with less output.

Did you jump it out manually? Dont rely on the OP or computer to do it right.

I replaced all my injector lines one year....it took forever to get fuel to weep out.

At this stage of the game you might want to remove the glows as to not kill the starter.

Any white smoke form the tail pipe?