2.3L ('83-'97) 1986 2.3L eec pinout? Still no fuel pump or injectors.

[gward]

I searched and found an eec output for the 2.9... is it the same for the 2.3?

If not does anyone have a pinout for this old beast?

I opened the eec and replaced the capacitors (1 was leaking out the bottom) but i still have no fuel pump or injectors. Will start on ether and then die.

Thx

 

[scotts90ranger]

THIS is the only place I know off the top of my head, '85-88 was basically the same as far as Ranger engines go, through mid '90 they were basically the same too just the ignition system changed then after mid '90 they changed from using a MAP sensor to using a MAF sensor which is the only main difference... at most the wire colors will be different but the wires still go to the same place, there's about 10 wire locations different on the turbo engines so just look at the Ranger diagrams there...

 

[RonD]

Pin 22 is fuel pump relay ground wire, yes the 3 capacitors effect this

Yes, as far as sensors and controls the EEC-IV pins were all the same regardless of engine size
Injectors use same pins but more or less pins/wires based on 4cyl, V6 or V8, yes same EEC-IV was used with V8

If you jumper the Fuel pump relay does engine start and stay running?
If not, its a computer issue, not fuel pump relay

 

[gward]

I can jump the fuel relay and make the pumps run but it will not run.

I want to check at the eec to see if theres a signal for the injectors, so many broken wires found already figured i would go to the source.

 

[Shran]

Have you tested any of the injector plugs with a test light to see if they're firing or at least have power when you're cranking the engine? Injectors on these trucks are batch fired so if one has power in theory they all will.

IIRC the injectors, coolant temp sensor and intake air temp sensor are all on a small separate harness that unplugs from the main harness. That happens towards the firewall and under the upper intake. There is also a ground wire there that should be bolted to the block through one of the lower intake mounting bolts. I would inspect all of that, if the injectors don't have power it could just be a bad ground or something simple.

Good find on the bad capacitors in the ECM, hopefully the electrolyte in the leaking one didn't damage the circuit board.

 

[gward]

I havent dug that far in yet but i will check for power at the injectors today.

I'm hoping its something simple and not the eec, they are hard to find.

 

[CorbinsRanger]

More Information for BSE EM323

I havent dug that far in yet but i will check for power at the injectors today.

I'm hoping its something simple and not the eec, they are hard to find.

Rock Auto has BSE remans, couple other places as well. Core charge is a killer. Shipped for under 2

 

[CorbinsRanger]

Remanufactured Engine Control Module Blue Streak Electronics Original engine control unit powertrain control module | Auto Value

www.myautovaluestore.com

 

[gward]

Injectors have power to both sides but no ground trigger signal at all. Tested at the eec also, no signal either so i guess the eec is fried afterall.

 

[RonD]

Or there is no timing pulse from TFI

 

[gward]

i ran through the 18,000 page test procedure, it has output from the tfi, then input from tfi to eec but nothing back out.