i have a 06 sebring 2.7 i keep getting a p300 code of random misfires the check engine light comes on then and it drives ok but once in a while i hit a speed bump and the MIL starts flashing it stumbles a liitle bit i punch it and it stops flashing and just goes solid. i also got a po1129 and a shift solinoid code once this ting only has 67000 onit could the ECM be fried or anything this has changes my opinion of chrysler i need help!

 

You're correct that the P0300 code signifies multiple cylinder misfires. This could be a number of things, such as fuel system problems or crank/camshaft position sensor circuit problems. More information may be available with the right equipment to look at freeze-frame data, but you can't do that with just a code scanner.

Not sure what you mean by a "po1129" code. That's too many digits. P1129 could refer to the MAP sensor but it's not a code that shows up in the shop manual.

I wouldn't give up on the ECM just yet. Get it hooked up to some first-class equipment and see if you can figure out what is going on. Check under the hood for any disconnected wires or hoses to rule out something simple and easy to fix.

 

cam and crank cause not cause misfires they detect misfires by watching teh engine speed up and slow down. Have u done a tune up lately?

 

for chrysler sebring 06 2.7 when i'm standing at the front which is bank 1/2 and sensor 1/2 please help

 

Sensor #1 is the upstream sensor, ahead of the catalytic converter. Bank # 1 has cylinder #1 in it.

 

why are u wasting your money on o2 sensors they wont change anything.

 

nobody can give me a straight answer and i'm not puttingit in the shop!

 

u want a straight answer from whom ? any one can give u a straight answer now if its correct in figuring out what wrong is a different story. U want some one just to tell u whats wrong with out getting your hands dirty its not gonna happen. If u want to spend money throwing parts at it be my guest and after u have spent 400 to 1000 on parts get back to me on here and then we can narrow it down when u want to do some diog on the car.

 

Yes I have to have some help , today the Engine light is flashing and i cant find these NGK sensors local so i have to order them! and the Code 1129 and 300! are here and it idles horribly . i sprayed cleaner around looking for vacuum leaks and is all good...i took the BOSCH O2 ones out and put the old OEM ones back in but...

 

Hi, when was the car last serviced. Sometimes even a duff spark plug can cause a misfire. Start with the simple things first.