Hi,
I'm trying to get this 1986 W150 manual 6cyl. running.
It's been sitting for 3 years.

Looking in the repairmanual they talk about an electronic module. Can't find it. Can it be that this truck doesn't have it?
Can't find the ballast resistor either.
So far put in new ignition coil. Distributer cap and rotor. Ordered new sparkwires and pickupcoil.
Don't know if it has Electronic control unit or spark control computer?

Any thoughts may help.
Thanks.

 

you will want to check behind the battery. if there is a computer then you have the lean burn system which could make it a bit more difficult to track down the problem. i think the first thing you should be checking is if there is power at the positive side of the coil and how much? does it so much as try to start firing when you are holding the key in the start position?

 

The electronic control unit could be on the firewall, drivers side fender, or on the air cleaner. If you can take pictures of the engine and engine compartment and post them we might be able to ID what you have.

 

Thanks guys,
Might have found the electronic module. Got some pictures of it. It was on the firewall. The plug is different than in my Haynes manual. 2 pins not 4.
Will take pictures of whole enginecompartment next time.

 

That is your voltage regulator for your charging system...

 

should be by the brake booster just above the wheel well if i remember right

 

Look on the firewall on the drivers (left side) near the brake booster...just under the bulkhead connector...the ECU whould be just below that and the ballast resistor should be just to the right of the connector as well.

 

from the sounds of it you may have the lean burn system. if you cannot find the ecu or ballast resister on the firewall then you will most likely have a computer hiding in the fender behind the battery. should look like this

 

Hi,
Think this must be the computer for the lean burn system.
So I'm checking the 10 way connecter for voltage. Cavity 1 and 2 are good. cavity 4 there is no wire hooked up but there is in 3. That didn't read any voltage??
New sparkwires and pickup coil.
Not sure how to proceed if there is a short between 10 way connecter and coil.
Thanks.

 

Any advise on sticking with the leanburn, or converting.
Looking to not spending too much money?