Good afternoon i am looking for some help and wondering if anyone else has ever had the p0300 code.
I own a 2009 2.4L dodge journey SE. It has 140K miles on the engine. I had a O2 sensor error code that i tried to fix with a new sensor. This did not fix it so i ended up replacing the Catalytic Converter. The car started to act up and would hesitate then check engine light would come on and would loss power occasionally stalling. It threw a camshaft sensor code so i replaced that. it then threw a crankshaft sensor code a week or so later so i replaced that. No it is throwing the p0300 code and i have replaced all spark plugs and coil packs, fuel pump and strainer, battery, and did a compression test. the results of the compression test were as follows. With 6 cranks of the engine Cylinder 1: 205, Cylinder 2: 205, Cylinder 3: 205, Cylinder 4: 205. These numbers seemed high so i ran it again allowing 10 cranks per cylinder. 1 came back at 225, 2 was 220, 3 was 220, 4 was 215. I am at a loss now the mechanic i had diagnose it as the fuel pump says that it seems like the PCM is bad to him. Anyone else have this issue? I am at the point of trying to get it to a dealership but fear driving it.
