i have an 09 nissan murano. a few days ago was driving and the car lost power and started sputtering almost as if it felt like it was going to run out of gas. the CEL came on. I took it to Oreillys and it put out P0300 multiple misfire code. On the way back from the shop it got worse and CEL started to blink.
I had the car towed to ind mechanic. He has had it for two days and did compression test, leak down test, checking fuel lines, pumps, injectors, spark plugs, coils, intake manifold gasket, and nothing was showing it was bad.
He cleaned the fuel injectors which didn’t make a bit of difference. There are two cylinders adjacent to each other that are not firing. He took the fuel injector from those cylinders and moved it to another and the misfire is following the injector.
Thats a pretty solid sign that the problem is those two injectors in my opinion. What makes me nervous is the while the owner of the shop is confident they have found the problem the mechanic working on my car says he is concerned because the car is experiencing a loss of power while idling and in his experience a fuel injector does not generally cause that to happen during idle.