I have had this check engine light on for a while now. It through a random misfire and then misfire cylinder one. Now its saying random misfire all cylinders. Plugs, wires, and distributor cab have all been done and next i am going to clean the IAC to see if thats the problem cause its only at idle. Any suggestions please????

 

I have had that code a few times after a Heat Soak on the motor. I pulled the battery cable off for about 5 min and then I put it back on and the light was never on again, till the next time I had a Heat Soak.... Does the motor run like crap all the time now?

 

It is running rough all the time now.

 

If it is running bad all of the time you need to check the basics, fuel,spark ,compression.

1. fuel pressure,and volume,then get a noid light and check to see if injectors are getting signal
2. is your tune-up stuff in good working order, plugs good?
3. do a compression test to ensure there is enough to effectivly fire all cyls. min approx 100 psi, best 150,psi
Good luck!

 

if its still throwing a miss code take a can of carb cleaner and spray where your intake meats the head. it will throw a miss code if that gasket is bad. if it is when you spray it the motor will bog down. dont use starter fluid because you can hurt your motor.

 

Good idea, i forgot about vacumn leak

 

alright i will be trying some of those things and more tomorrow i will post the diagnosis after

 

its a jeep thing........

 

Alright here is what i got. It was simple like i believed it to be. I started pulling plugs so see if a plug or something of that nature was dead. Starting with cylinder one. I pulled it and it ran the exact same. I checked the wired to see if it was sparking....it was. That was simple checked the plug a little burnt up. So me and my brother decided to check the fuel injector with the plug and wire back on we started the car and pulled the fuel injector and it ran the same.....bad fuel injector i'm pretty damn sure. Have to wait till tomorrow to get a new one though its to late to get the part so i will post if it actually worked and there is no other problems. Thanks for the input