A few things. If you dropped any of the new plugs at any time, the porcelain on the plug itself may be cracked. Another thing is Spark plug gap VERY IMPORTANT .032Alittle more info. Been having this problem and have been in contact with Ripp to try multiple custom tunes with no help. [url]http://www.jkowners.com/forum/showthread.php?t=233978[/URL]
Also have been throwing code p0300 "multiple/random cylinder misfire". My gut feeling was EGR valve, but replaced it and nothing changed. Replaced spark plug wires and plugs tonight and now throwing the p2308 code.
Replaced coil this morning, didn't help anything.A few things. If you dropped any of the new plugs at any time, the porcelain on the plug itself may be cracked. Another thing is Spark plug gap VERY IMPORTANT .032
Coils do go bad, but lets go over the easy stuff first.
didnt smell antifreeze in it, but it was enough to notice while going up my driveway.Could be a blown head gasket as you noted. I've been down this road before, is it blowing a lot of white smoke and did you smell anti-freeze? Regardless, I wouldn't drive it any further until you figure out what is wrong - if you have a blown head gasket and water is getting into the oil then you could end up with a lot more damage than just pulling a head to replace that gasket.
If you do get a new ECU, or have your current ECU reflashed at the dealer, Make sure to back the RIPP SC tune out and reload the file that is named "Original Backup File" back int to the Jeep (unmarry the Diablosport) this way once the new factory calibrations are flashed to the ECU, you can the remarry your diablosport and upload the RIPP SC tune. It is important to note that you should not try to restart your Jeep without re-flashing the RIPP SC tune after the ECU replacement or current ECU dealer reflash, as you will FLOOD the motor due to the larger injectors provided with your KIT.Anyone have any recommendations on where to pick up a PCM not including the dealership. Im seeing several sites that you send in your VIN and they program it. just wondering if anyone has used one specifically.