As for pinpointing , if the misfire is on 4, logically it would be coil 4 that has a problem. After contacting the dealer at Armo Motors: , I asked if he could possible help with part of rebuilding the engine, and he said he had a shop that could do it, and he would pay half. These are just some possibilities. I could not believe how rusty this car was. You need to start with basics.
All of the incident possibilities are circuits contained in wiring that pass through the bend in the engine control harness. I called a tow truck and had them bring it to PepBoys for repair. I got it for 8 grand with 70k miles. If you have no problems here, swap the plugs. I bought a Honda Civic since then and took the hit; Still waiting from that settlement from Nissan though. There also seems to be electrical problems with this car as well.
However, I do believe the ignition coils would be covered. Plugs have about 100 miles on them. It could be dirty fuel injectors; pour a bottle of Chevron Techron in the gas tank. I can see how it could be crudded up in there. The certified Nissan tech was on vacation and he was only one qualified to do this so waited a week for him. All in all the biggest money pit I have ever owned.
The misfire code is logged when the computer doesn't see the appropriate feedback in the primary waveform coming back from the ignition module during a commanded ignition event, or when the instantaneous crank speed does not increase. I also cleaned the mass airflow sensor. Nothing was dripping wet or anything like that. In the end i still got misfire on cylinder 6, P0306. They tested the coils and couldn't pinpoint which coil is faulty. The first appearance of the P1320 will also be a pending code, but does not erase on the next trip like the misfire I think it takes like 5 trips to erase a P1320, but not sure. Have you actually removed and inspected them? I changed the spark plugs and the ignition coils and that resolved the engine codes, rought idling issues and hopefully it helps out with fuel economy as well! However you should replace all coils although that may not be the problem but it's somewhere to start.
Do you think that this problem would be covered under a warranty? I really thought the wiring was bad but resistance was all same at 3 cylinders at the coils least. The told me that cylinder 4 was mis firing so they had to put in a new coil pack and change the spark plugs. Did a quick check for an intake manifold leak but did not detect anything. It has almost been a month and I am still without a car or answer. The plugs only have 30000 miles on them and the engine runs very smooth is the reason I am venturing into another direction instead of the coils and plugs. A mechanic told me this car is a piece of junk and to get rid of it.
I took the car to Nissan Dealership and they advise me I need a new transmission!! Am i thinking right here. How is the idle rpm when it is not yet warmed up? Another common cause, is oil leaking onto the spark plug tubes and coating the spark plug wire boot and spark plug with engine oil. But i dont think its the problem. You might also run a comparative compression test to check for a valve problem. Or could it be possible one of the plugs is weak even though it is brand new? Issue with high gear only? I bought the car a little over two years ago, used of course. Weak spark usually rears its ugly head under acceleration, more voltage is needed with higher cylinder pressure.
When you have single units that are global that begin to fail eg: one ignition coil , it usually downgrades to a no start issue which is infinitely easier to troubleshoot. You could also have a cracked head or leaky head gasket causing this as well. Took into a shop and they said it was a bad coil P0300 Random Cylinder Misfire and P1320 Primary Ignition Fault , replaced the ignition coil, and it ran fine for a while. I recommend having at least 2 screw drivers on hand; 1 small and a couple of later ones to help you pry up the injector. After a few minutes the misfire clears up and the engine runs smoothly and makes good power. I thought Nissan was a reputable company but I'm wrong.
At the end of this article you'll find the links to the test articles that'll show you how to test these parts. I have it on good info they have had trouble with the head gasket on this 4cyl. If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders i. I think there should be a recall on this problem. If any one of these is missing, the specific cylinder that is being affected will go dead not produce power. Car has power, decent amount at that. I have replaced the spark plugs and all 6 of the ignition coils, it seemed to be running fine for about 3 weeks after that and it began misfiring again this morning.
Also, now water is leaking from the radiator. My current problem which makes my 4th car issue is the car shuts on and off at speeds of 65-70 mph on the highway. I'll clean the idle air control valve next. The car had extremely poof acceleration and it felt like the engine was going to either blow up or sieze up. Usually after a cold start. Sort of poke and hope.
Mike Try to coorelate the P1320 with a misfire on a particular cylinder. The p1320 is Ignition signal fault-primary primary ignition signal fault this being on the module side of the ignition. In this article, I'm gonna' shed some light on how to troubleshoot Misfire Codes P0300, P0301, P0302, P0303, P0304 on your Nissan Altima or Frontier, Xterra with the 2. This means that the misfire could be caused by a fault in the fuel system, or in the ignition system, or an engine mechanical condition. Low fuel pressure I doubt this theory. I've ruled out all the small cheaper repairs. The serviceman never mentioned the warranty at all, and this bothers me.