spout circuit is a code for a dustrbutor ing.I think you have a bad coil pack or a bad conection on one of them. JMO

 

I got an answer on the code 88 and the bottom line is running the pinpoint tests that I posted for you.

 

Fixed the problem today bad DIS module thanks for all your help.

 

Glad to hear you got it fixed.

 

Im having problems with a 1991 ford ranger. I have put a code reader and the code reader is giving me 18c (Erratic IDM input to processor/SPOUT circuit grounded). It is also giving me 88c (loss of dual plug input control). The truck has a 2.3 L standard with over drive. After driving it about 4 to 5 miles it I try to gas on it to acc. my speed gearing up. It will not speed up the engime roars and and jerk while the truck decreases in speed. The rmp jumps from normal to below 1000 rmp and rides there for a while. I can barely gas on the throddle to go anywhere. I have replaced the Ignition coils, the fuel filter, and air filter. The code reader is also giving me other codes: 10, 14c, 31c, 66c, 77r,. It does have a broke vacume line that runs from the air filter box to the intake. But it idles with no problem. I thought it may be some of the plugs are fouling out or the plug wires but I replaced them last summer. with the engine running, the code reader is giving me (cylinder 4). I have had this problem for several months and it is getting worse. I can hardly pull a trailer or even climb a hill. Maybe with this information some one can help me and tell me what to replace...

 

You might want to check and make sure that your EDIS module is not bad. That is what controls your spark for your system.

 

Thanks maybe the (DIS) is my problem... I already changed the coil packs.

 

My truck gave me the same symptoms and it was my DIS module that was bad and it gave my brothers 94 Ranger the same way also. I was told that they only have a life of 80k miles. Sometimes you just get more than that out of them.

 

Thanks!!! You have really saved me from a (headace)...

 

I have the codes 18 and 89. The symptoms are rough idle(sometimes), tach does not register right, engine randomly revs up at idle(sometimes). I think I will replace the DIS module and see what happens.

 

It worked for me replacing that module.

 

Thank you. Just what I didn't want to hear.

 

I have that same problem on my 91 ranger 2.3 4cyl. Does it make sense that this happens after it heats up a little? My mech thinks it may be a bad module.

 

The best I can remember it did start doing it after it heated upmy brother had a 1993 Ranger Splash that did the same thing replaced the DIS and problem was fixed.