starts an dies

[shmed]

ok so we got the new motor in  still a 109, 
wired it up
go to start it an it fires after a bit of cranking an dies immediately ??


heres whats been hacked out of it
ac ,   heater box, wiper motor,   cruise control, charcoal canister,   power master.   an the temp  sensor on the top of the intake it   broke off  so   not wired up..  think thats all i see missing..


so far we tried a  new battery,   coil pack an module, crank sensor.    added   a ground from block to frame,  cleaned an tightend  grounds at back of head. 
all the sensor reading look ok   i mean for just key on type stuff.   
any ideas
thanks guys

[Scoobum]

When something like this rears it's ugly head, I go straight to Steves site.

[shmed]

yes thanks   brad I've been on the site tried what he has written  nothing thus far..

[earlbrown]

Does it fire up and die every time, or did it bust off once and that was it?

[TexasT]

Fuel pressure?
Pump priming with the key turn?

[daveismissing]

I get fuzzy on this~ but the two feeds to the fuel pump both come up - inc the cct that senses oil pressure?

[Scoobum]

I'd be looking for proper fuel pressure at the fuel rail. If that checked out...then I'd go through Steve's 'no start' tree.

[shmed]

Earl  yes it fires an then dies every time,


texas  yes can hear fuel pump when key is turned on   i believe the gauge reads 20   then with another turn of the key it hits 38


I'm  curious if one of the removed items maybe be causing   this? 

[Scoobum]

Spark?
Injector pulse?

[Just a Six?]

Temp sensor? What happens when that's not working? I forget how important it is?
As the car fires up for a second does the fuel pressure stay at 38?
I've had the pump hold key on & also pressure jump up for a second but then die when engine fired years ago.
The 2" rubber fuel line on the pump cracked open a bit but that's probably pretty rare?

[shmed]

brad  yes   spark an ink pulse
dave im not sure i thought that may be the problem..
i unplugged the maf an the car  fired up an ran no problem.  strange to  me but hopefully its all it was,,,,  ill post back with an update...
saturdays is race day if we can get the car off the stands....

[shmed]

well so much for the excitement....
changed out the maf with my spare..    same problem   starts an dies..  unplug maf   fires right up???

[earlbrown]

Are you running a translator?  If so look inside the plug and see if a pen is bent.

Have you done the KOEO MAF test to see if the computer is making up numbers or if the MAF is actually reporting to the ECM?

[Old Buzzard]

" an the temp  sensor on the top of the intake it   broke off  so   not wired up.."
That sensor is the overtemp to turn on the fan, if the temp goes over about 225*.
The canister.. Did you plug the hose off? If so, that's the tank vent. Pull the cap, it starts and stays running?

[shmed]

earl what is the  koef  test?    i did try key on engine off an af was at 4   then full  throttle still 4  is this what you mean?
      no translator  stock maf


old buzzard your are correct  not wired up   the canister isn't there or the electrical gizmo on top   i didn't plug the lines there still sitting here open ended.