Gen 1 engine running on five cylinders!

[VIPERMIKE]

Once my 1995 gets warmed up, one of the coil packs stops working??? I have new plug wires. I checked all the connections??? This only happens when it's hot, if I let it cool down it will work fine for about 10 min.

 

[GR8_ASP]

Possibly a controller issue as the controllers sharesome fuel/spark tasks. Do you know which cylinders drop out? You can pull injectors one by one to find out any cylinder that isn't doing its part.

 

[ROCKET62]

I thought the coil packs were in 6/4 configurations?

 

[VIPERMIKE]

What controller? PCM? It sounds like every other cylinder.

 

[Bill B]

I thought the coil packs were in 6/4 configurations?

They are. And they fire different sides of the engine.

 

[IEATVETS]

Once my 1995 gets wormed up, one of the coil packs stops working??? I have new plug wires. I checked all the connections??? This only happens when it's hot, if I let it cool down it will work fine for about 10 min.

First off, if your 95 gets wormed up you better find out how the hell the worms are getting in there, get some silicone sealant and seal the hole. Then take it to a dealer and have them fix it. If you have a warranty then you have no worries.

 

[GR8_ASP]

I'll repeat myself. Pull your fuel injectors one by one and identify what cylinders are not operating, or not operating as well. Once you have done that you can play logic regarding the coil (and the comment above is correct there is a 6 and a 4, but they both operate some cylinders on both sides) or fuel control circuits. And yes, the controller is the PCM. In the Gen I it is divided into two operating parts. Depending on the results of the injector test you can rule out spark or fuel and then attack the most probable cause.