Hey I知 new to this site figured I would ask for some help So my 06 maxima I have the cel came on well I got it hooked up saying multiple misfires I changes 2 coils well it was fine for about 4 hours so I went and got 4 more and replaced them the car was doing fine no cel came on at all it was doing great for a day and a half than all of a sudden the cel came back on but there was no shacking in the steering wheel at all than about 3 days later it happen again when I was sitting still at an idle I felt something like it it was misfiring after that it started shacking again the steering wheel and the whole but it only happens while at a sit still in drive or reverse and between the speeds of 40-60 it shakes so god awful what could it be also the cel blinks at me between the speeds of 40-60 but anything over 60 it stops blinking and anything under 40 it does not blink had it hooked up once again and just the same thing multiple misfires could it be the spark plugs or fuel injectors

 

Okay, blinking CEL indciates the big misfires (serious damage). Those can destroy your catalytic converters, so don't enable that.

Where did you get the coil packs (brand) from?

When you changed coil packs, was there oil in the spark plug tubes?

When were the spark plugs last changed?

 

The coils are brand new bought them from Nissan so I知 guessing the Nissan brand and no there was no oil in or around the old coil packs when I removed them to replace them and I知 not sure when the last time the spark plugs were changed I bought the car off some one but when I did nothing was wrong beside the typical small things like sunroof motor seal for the driver side window and motor for passenger side window when I was driving it and kept it at a steady speed you could feel the misfire as the car was jumpy

 

You might want to check the spark plugs in Bank2, which are the easy ones to get to (closest to the radiator). Check the gap on them as well. They should be at .043.

If the spark plugs, coil packs are good and there is no oil in the spark plug tubes, then you're gonna have to look at the wires. Maybe a mouse chewed at them a bit. It wouldn't take much chewing on them to you give some grief.

 

Ok thank you very much I will look at the spark plugs and see and look into the tubes as well and also check the gap I hope that痴 what it might be anything with the plugs or coils or wires would be a better than having to check the fuel injectors lol I will keep you posted and let you know if it痴 not that and thank for helping me Bertie things down

 

Oil in tubes look likes this.

 

How to read spark plugs.

 

Better pic of spark plugs.