Re: 89 ranger 2.3 has no fire
"sideshowbob" <firstname.lastname@example.org> wrote in
> I have an 89 ranger 2.3 5sp 2wd. the other day, it quit running on my
> way to work, I have replaced the DIS module,put a new computer in it,
> there are 2 relay's on the passenger side fender, a green one and a
> brown one, i replaced those also,I put in a new feul pump and sending
> unit. i have juice to the sending unit but no power to the fuel pump,
> the exhaust side plugs have a weak yellow spark, the intake plugs have
> no spark at all and when i try to get the codes, instead of my test
> light flashing with a code sequence, it is just a constant light. i am
> STUMPED!!!!! i have replaced everything i can think of to replace, i
> have traced all the wires and everything seems to be ok..can someone
> please help?
Check for 5v (To engine grd) to a sensor, the TPS would be best bet.
Assume CEL is on normal brite at key on.
I suspect a wiring harness ground is at fault, otherwise you may have blown
another computer.. though they are generally tough birds.