2.3L ('83-'97) Misfire help

[scotts90ranger]

I hate to go the parts cannon route but the DIS module does most of the work with the signal so it could be the issue unless something in the computer is mad... I do have spare parts but not enough to share at this point, I think I only have one spare DIS module...

 

[91red]

I hate to go the parts cannon route but the DIS module does most of the work with the signal so it could be the issue unless something in the computer is mad... I do have spare parts but not enough to share at this point, I think I only have one spare DIS module...

I just replaced the dis too I’ve been firing the parts cannon lol

 

[scotts90ranger]

At this point I would probably just pull the computer then pull the cover off and have a look at the circuits to see if there is a bad capacitor or any corrosion or something somewhere. This has to be a bad ground or a bad signal of some form...

 

[91red]

At this point I would probably just pull the computer then pull the cover off and have a look at the circuits to see if there is a bad capacitor or any corrosion or something somewhere. This has to be a bad ground or a bad signal of some form...

I’ll check that out next

 

[91red]

At this point I would probably just pull the computer then pull the cover off and have a look at the circuits to see if there is a bad capacitor or any corrosion or something somewhere. This has to be a bad ground or a bad signal of some form...

So I took the computer out and opened it everything looks ok this is the first time I’ve ever seen the inside of one of these

 

[SenorNoob]

I don't SEE anything wrong there at a glance, but I replaced a half dozen capacitors in a tv that showed no visible damage but also had 0 capacitance once removed from the circuit. I got the sounds back.

 

[RobWigglezz]

Erratic tachs on slightly newer rangers is simply a bad connection from the flexible circuit board on the cluster to the tach. There are metal spring clips that hold and make a connection to the circuit board on the back of the cluster. The tach and other gages get pushed into them.

 

[91red]

what do you mean one and two aren't sparking? That's not how it works... it's a waste spark system, one side of the coil (with respect to the connector) goes to cylinders one and 4 and the other side to 2 and 3, both coil packs fire at the same time and the same cylinders should be connected to the same sides of the coil packs, the front and rear orientation doesn't matter. There's literally just separate ignition systems that fire at the same time, one on each side of the engine, from '89-94 during cranking only the passenger side fired but once running both fired.

If you have plug wires on the wrong spot on the coil packs that can definitely cause a misfire problem.

If there's an issue with the crank sensor usually they cause a stall when hot but there's more than one way to have an issue. I don't hear of too many issues with the DIS module, I've never had one...

So since your really really smart when it comes to these and I see you in every forum I’m gonna reply this to you first I did the timing light and the timing was jumping around everywhere advancing and regarding and just going crazy so replaced the cps and it was a pain in ass and it changed nothing so I’m lost now in need of help or a direction to go