2010 Dodge Grand Caravan 4.0 v6 OBDii Codes p0300 and p0152 got 2 codes for P0300 mult. misfire and P0152 for O2 sensor bank 2 sensor 1 high voltage. i am gearing more towards the O2 sensor which send the wrong fuel signal to injectors and i get the mis fire code. but then again sometimes the misfire sends the wrong info to the exhaust and I have a 1999 jeep grand cherokee code p0138 p0300 p0301 p0302, changed plugs, coil, fule filter, ect. Feeling very - Answered by a verified Jeep Mechanic We use cookies to give you the best possible experience on our website. In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors. Random misfires that jump around from one cylinder to another (read: P030x codes) also will set a P0300 code. Discussion starter · #1 · Feb 1, 2014. hello. my 06 GC 5.7 hemi 69856 miles had a recent transmission rebuild after three days he showed code for o2 sensor that there is resistance on the heater so I figured that I will do it in next couple days , then next day he showed code p0300 and start to idle rough so I cleaned the coil connections The code number was P0300 – Multiple Cylinder Misfire, and it was not present when they technician looked at the truck. The technician test drove the Jeep (He indicated my Flowmaster exhaust enhanced engine noise?) and called it a day. They did advise there is a Star case number (S2218000019) documenting this problem on many other vehicles. 4’th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your Grand Cherokee’s fourth cylinder has a misfire. Before you can even diagnose P0304 in your vehicle, you need to find the fourth cylinder’s location. On “V” configuration engines, it’ll usually be the second cylinder on the head further away from the front of What Does Jeep Grand Cherokee Code P0420 Mean? Codes like P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, and P0308 are misfire codes, and these codes 2775 posts · Joined 2011. #3 · Jan 30, 2014. P0700 is just the code the TCM sends to the PCM to turn on the engine light . You need a code reader capable of reading the TCM . Superchips and other tuners will do it if you have . 5 and counting :05 WK 5.7 HEMI , 90 YJ Islander 4.2L , 94 ZJ Ltd 5.2 , 2000 WJ 4.0 , 2010 MK Patriot. T. qHx1SKK.

jeep grand cherokee code p0300