Not new Exactly

[Elroy Cook]

Hey been along time used to belong but a past life it seems ago had several Rangers and Bronc.2 over the years but Got problem with my 88 Ranger

 

[Blmpkn]

Welcome back. What's the problem with your 88? Someone can certainly help I'm sure, make a thread about it in the relevant section of the forum.

 

[Elroy Cook]

well it was a build project that never got done and i have replaced tanks pumps filters regulater about four times now so last time i took tank off cleaned put in new unit pulled frame pump checked it ant it pumps so put all back together added fresh gas rear tank pump cycles have good visual pressure at strader valve wont hit a lick sprayed starting fluid in plentum fires right up and dies I feel like I am misssing something and also cheked the switch on hump its in down position

 

[RonD]

Welcome back to the forum

If 50/50 test gets it to fire, then spark and spark timing is OK, and if you seem to have fuel pressure, then injectors are not working
That's a computer issue, that's all the 1994 and earlier computers do is injector timing, some spark advance, but mainly injector timing at adjust air/fuel mix

Try unplugging the TPS(throttle sensor) as that can disable injectors if its shorted out inside

Open up computer and inspect it, and inspect it's connector and pins
Corrosion inside can disable functions, also check the capacitors, usually blue or black cylinders, these can leak and cause issues after 20+ years, under $5 to fix

Each injector gets 12volts key on and they share that one 12volt wire, red wire daisy chained from one injector to the next
You could test the easiest to get at injector for 12v, key on
Computer grounds an injector to open it, so make sure all computer grounds are grounded, no disconnected wires

 

[Elroy Cook]

so if i understand correctly if the tps sensor is shorted by un plugging it should make it run? i pulled computer cheked and saw nothing out of normal cleaned contact tips and re install and see if i get voltage at injectors but appears computer is a re manufacture one

 

[Eddo Rogue]

maybe clogged injectors or filter....or bad regulator? If starting fluid works, you have spark. Problem is fuel.

 

[89Twincharge]

Engine size??

 

[Elroy Cook]

Finally found problem actually problems I found a very corroded 3 pin connector coming across the engine tried to find a replacement but couldnt so just butt spliced together for now,also cheked computer and didnt see any problems,but battery terminal back on it fired and died, checked strader valve no fuel,replaced the in frame fuel pump and runs fine now,