1998 Cherokee 4.0 rough idle
Hi Im baffled by this problem. Im working on a friends 1998 Cherokee and it has a really rough idle but when you accelerate it runs just fine. I ran the codes and it says bank 1 misfire and bank 3 misfire. I replaced the TPS and the IAC because another jeep i worked on had a similar problem and that fixed it. Could it be something with fuel Pressure? Or what else could it be??