Bronco 2.9 wont start need help

[hillvalleybronc]

My 89 bronco 2.9 shut off on me today going down the road. The fuel pump is running but i have no fire. Changed out the coil from a working 2.9 and it didnt help. changed the ignition module and that didnt help. changed computers and that didnt do anything. I have no fire what so ever. Im running out of ideas. any help would be appreciated..thanks

 

[kimcrwbr1]

check all the grounds sand metal to metal especially coil to engine and are you getting power to the coil from the ignition in run and start also look for power to the dizzy look in the tech library under TFI

 

[kimcrwbr1]

Also do you hear the EEC solenoid click when you turn the key to run try changing the computer power solenoid.

 

[kimcrwbr1]

Is the rotor turning as you crank the motor

 

[hillvalleybronc]

Wheres the eec solenoid? yeah the rotor is turnig.. there is power on both sides of the coil. I sanded the ground on the coil.. I still havin nothing.. changing the disturbtor now..thanks.. what a headache..

 

[master hec0]

have you tested for spark? 1st off test for spark then check to see if you are getting fuel to the motor. after cranking for a bit remove a spark plug and see if its wet with gas. could also be timing but i doubt it.

 

[John Smith]

pull the coil wire and

have you tested for spark? 1st off test for spark

check the fire as you crank....also is the engine harness grounded at the coil mount ?....mine had to be...
also
if comp can't get the pu sig from dis...it doesnt know the engine is cranking..and will not flow the fuel....

 

[kimcrwbr1]

The computer solenoid is either by the computer on the passenger bulkhead or by the start solenoid or in the power dist box under the hood if you have one. yea that hold down bolt is a biotch. were you getting power to the distributor key on and in the start position I believe it is pin 4 and 3 let me check

 

[kimcrwbr1]

It is pin 3 and 4 here is the link for troubleshooting the ignition
http://www.therangerstation.com/tech_library/TFI_Diagnostic.html

 

[kimcrwbr1]

To check the coil put a spark plug in the coil wire off the dizzy then ground the plug and turn the ignition on, take a jumper wire from the neg or green wire on the coil and quickly touch it to a good ground the plug should fire if you get spark then go to the dizzy wire connector and jumper coil neg wire to ground if you get spark the circuit is good from the dizzy. From personal exp same symptoms was a bad coil and EEC relay the TFI just made it run like crap but never had the PIP coil go bad either.

 

[hillvalleybronc]

FIXED!!!! Thanks everyone...good to go til the next time..

 

[xr75er]

Fixed? what did you have to do? lots of sugestions, did any of them do the trick?

 

[hillvalleybronc]

just was a bad connector where the ignition module plugs into the wiring harness. thanks

 

[WhiteBroncoII2WD]

just was a bad connector where the ignition module plugs into the wiring harness. thanks

so the plug had backed itself out?

 

[hillvalleybronc]

when i checked the plug the red/green pin in the connector was burnt/off, missing completly.