Conquering the P0305 Code Your Guide to Engine Performance Restoration

... P0305 code after about 1/2 a mile of driving from my house. Sorry to be so long-winded, but I have spoken to several mechanics and even a ... They just blindly follow what the trouble codes tell them, and fire the parts cannon at it. Have you noticed a loss of coolant over time, by ... P0305 code - misfire on cylinder 5. Started after a coolant leak, changed the coil pack and spark plug for that cylinder. When code is cleared it's fine. I've changed the plugs, the wires and have even swapped the #5 coil pack with the #3 coil pack to see if the code moves but the same code still ... The fact that your are only getting P0305 more than likely points to a Fuel Injector issue on Cylinder 5. Before replacing the injector, I would ... Ok, so after I replaced the #5 coil and still got P0305 codes and misfires under load... I ran through the remaining gas in the tank (octane 87) ... p0305 is a cylinder misfire detected on cylinder 5 so it could be no spark(bad coils, bad spark plugs) no fuel( bad injector (intermittent)) or no compression ... I've seen lists of possible causes, usually consisting of some combination of spark plugs, spark plug wires, ignition coil, injectors, toasted injector wiring ... ... code (?) Saying multiple cylinder misfire. THAT got me thinking. If I haven't thrown a code, how can they read one when the lights not on ... The misfire is an electrical problem on firing the coil. Could be an intermittent coil issues or the VC gasket is bad. Easiest thing to do is ...