Po300 Code Chevy 2

I have a 2007 HHR 2.2 l it's throwing the code po300 I replaced two spark plugs and on coil because it was throwing the code for those cylinders now it's throwing this one someone please help me where is a good place to start

Hello, i have a 2014 Chevy Equinox with the 2.4L 4 Cylinder. My check engine light came on a little while back and since then i was able to get a hold of a scanner tool to read the trouble codes. Initially it read several codes which are: P0171, P0131, P2096, P015B, P0113, P013E, P0300 and P2228.

I have a Chevy 4.3L V-6 engine. I am getting the fault code of P1345 Crankshaft Position (CKP)-Camshaft Position (CMP). How do I fix it?

Has anyone experienced a PO300 (random misfire) and had the problem be the camshaft sensor ? - I get codes PO300 PO303, and PO305. I have changed all plugs...

I think the next step for you is to have the injectors professional tested and flushed. The code leads to injector issues. Also check the injector harness to see if the wiring is rubbed through anywhere.

(plz note all cyl #'s referenced are by firing order) engine codes on 2.2l are PO300. We have checked all plug wires and they are new and installed correctly.

OBD-II Trouble Code Technical Description. Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem. What does that mean? This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles.

Jeffdavismusic wrote:Mine has a misfire on #6, changed plug and wire, nothing, turns out it was a lifter starting to fail.Mine has AFM and a week later #6 lifter locked and started the dreaded tick. Changed the oil (early) again and added Seafoam to oil and fuel.

SOURCE: 1998 chevrolet k1500 pickup 305 a misfire in # 2 cylinder hi there, if you can feel the misfire at an idle but not at a higher rpm than the fuel pressure regulator is bad im working on one right now that has mifire code and random misfire codes coming up

I have a 2013 Silverado and my CEL just came on. I have just above 60,000 miles. I went to get it scanned and I got P219B and P0300. I was thinking maybe it was a bad batch of gas because my and my wife went to get some gas earlier and saw there was a 1 ton truck with a tank on the back pumping something out of the gas covers on the ground.