HELP! truck runs rough and I've checked about everything!

so I've got a 96 taco with the 2rz that is all bone stock. got it from i guy and it had been sitting for 2 years, i have replaced the fuel pump and strainer, fuel filter, plugs, wires, cap, rotor, and MAF sensor after all that it ran pretty good, then i changed the radiator hoses and thermostat and flushed the motor and radiator out with the hose and sprayed off the motor, i had washed the motor before and had no problems, got it all back together and now it barely runs, sounds like it is missing real bad, its been sitting for a few days now and everything is dried out and still the same prob, i took all connector apart and sprayed them with WD40 and no difference, anybody have any suggestions?

 

anybody have any ideas? i really dont wanna take it to a shop.

 

In a dark garage, mist water over the coils. Look for arcing. Replace any coil that arcs.
When it runs rough, unplug, one at a time, then plug in, each fuel injector. The one that doesn't change the RPM is the culprit.

 

mine doesnt have the coil packs on the plugs

 

is there water in the spark plug tubes?

 

Mist the coils, regardless of the location. You're looking for spark leakage.

 

not anymore i blew them all out and sprayed some wd40 down in there

 

is the coil on those motors the little square box under the air filter and cruise control junk?

 

It's where the center wire on the cap goes to.
I missed that you have a distributor. There is only one coil.

 

it doesnt have a center coil wire like the old school stuff it just has a plug with a bunch of small wires that go all over the place its throwing me all off, i think this is kinda a in between year

 

Where does the coil connect to the cap?

 

exactly what im tryin to figure out myself, like i said it has a plug that prob has 8 or 9 small wires goin into it, thats all that goes into the distributor, alot different than what im use to

 

I just looked at an example. It looks like the coil is built into the distributor.

 

so i doubt that is the issue i took the cap off and blew it all dry, it runs pretty good in the higher rpm range still a bit rough but smooths out some

 

it hasnt thrown any codes either which is wierd for how crappy it runs

 

Try unplugging one injector at a time, to rule out the injectors. The one that you unplug, that doesn't affect RPM, is bad.
If unplugging them changes RPM on all cylinders, it's not the injectors.

 

ill try that and let u know

 

well its not the injectors, and u were right the coil is in the distributor, i finally got it to throw some codes it says misfire on cylinder 2 and 4 any thoughts?

 

plugs are new, wires are new could the coil be going bad? doesn't make sense for just two cylinders

 

any suggestions anyone?