That is suppose to be bad and tell me that the cylnder is actively misfiring so I figure I have a problem but I don't see what. If it's typical shutter at those speeds, then that's classic torque converter shutter. Code 301 means the cylinder is not producing power but not why. Always make sure the basic maintenance is done first and that things such as the fuel filter, air filter, spark plugs and spark plug wires are in good working order, as these are all possible candidates for a problem. I had replaced the coil pack and plugs and wires from the begining! The check engine light came back on.
If its not firing or the spark is broken up then the coil is bad Posted on Sep 11, 2011 Code 301 is a miss on cylinder one. This was the first positive indication of a real problem I found. They may or may not be tied in together. Error codes are back and it still misses in neutral at higher rpms. A transmission shop could read the actual fault from the transmission. New style coil on plug applications have a high failure rate, and can be concluded faulty by swapping to another cylinder and checking to see if the misfire moves to that cylinder.
If its not firing or the spark is broken up then the coil is bad Sep 11, 2011 P0301 - Cylinder 1 Misfire Detected. YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. I have had the valve cover off 1-3 , everything was clean, moved nice, straight, tight, nothing obviously wrong. There were two missfire codes that were found. Its about 4 or 5 dollars. It could be a sticky internal sensor. Code 1000 means the computer self-test did not finish.
Remember to refer to an appropriate manual for specific instruction. I first notice a surge or a miss while driving at highway speeds with the cruise on. I strongly suggest that you go to a repair shop with the proper equipment as well as a very good tech to diagnosis the problem. Check Nr 5 cylinder plug, plug lead or coil over plug or nr 5 coil. It is important to note that the misfire monitor is very reliant on the crankshaft position sensor signal. The truck seems to run fine except for the engine light.
But the connector had one of the pins push back! When your had the problem, did you hear a small ticking before it occured from the engine? When you start the car cold the computer uses what is basically a preset table of numbers to decide upon fuel delivery. They took of the plugs and said they looked new, and they checked the coils and said they looked as though they had recently been changed. Causes: - Improper spark plug at cylinder 1 - Insufficient compression at cylinder 1 - Incorrect fuel pressure - The injector circuit is open or shorted at cylinder 1 - Fuel injector 1 may be faulty - Intake air leak Solutions: - Perform Injector Service - Replaced Spark Plug 1 - Replaced Injector 1 - Replaced Ignition Coil 1 P0303 - Cylinder 3 Misfire Detected. Often, the best way to troubleshoot a single cylinder misfire is to swap ignition components between the misfiring cylinder and a good cylinder. Coil pack ohm out good. Wish I had done it first.
You did not state as to the year,make and model of the car as well as the engine size. Need to do some looking or some testing or replacing or troubleshooting. Many auto parts stores will read them for free and then try and sell you something - like a totally unnecessary replacement sensor The next most critical step is to research the codes - the codes are trying to tell about some strange readings the computer received from a variety of sensors. The Misfire monitor diagnostic is based on variation in crankshaft velocity. Always comes back to the same thing. I'd start by replacing the spark plugs don't use aftermarket spark plugs and switching the 1 coil with another cylinder so if you still have a problem and it sets a code for the cylinder that you put the 1 coil in you will know the coil is your problem. But that doesn't explain the ruff idle, or fould plugs.
It did say cyliners 1 tho but I started on the driver side to change plugs cause it was easier. I just replaced the injectors. Any advice or suggestions would be greatly appreciated. I went and had my fuel system cleaned out at pep-boys. P0301 went away and now about a month later the car is running excellent. Yes I am hunting for something. A misfire is just what it sounds like; a cylinder that is not firing as it should.
I thouht I might of good a bad pack. And you have a clue, it varies with temperature. This code will trigger the check engine light as follows: The misfire detection monitor, a software strategy built into the computer, is designed to detect an engine misfire. Up Date on my original Post I replaced the fuel filter, plugs wires, coil pack, crank sensor and all 4 O2 sensors. The answer is just a simple matter of elimination. So there is room for several problems or one that is affecting the others to happen.
What repairs can fix the P0316 code? Fuel filler cap damaged, cross-threaded or loosely installed. Drove it home and searched what codes mean. Being desperate, I read on. The problem was 2 burned exhaust valves, one in cylinder 5 and one in cylinder 6. I have a 2002 Ford Taurus, 3. This may be a bad fuel pump wanting more voltage to maintain fuel pressure or it may also be a bad fuel rail pressure sensor. Fuel injectors ohm out good and click when the engine in running.