misfire

[waaz23]

looking for help, i just recently bought a 1992 nissan maxima se, and ever since i bought it ive had a slight misfire at idle,but the car doesnt seem to be sluggish at all when driving through the gears, ive already replaced one injector on the front of motor farthest one from driver side, any suggestions

[DevonD]

How did you know it was misfiring? like how sure are you its a misfire? And how did you know what injector to replace? Has a mechanic taken a look at it?

[allensteiner]

also how do you know it was the injector??? first start off with the basics of fixing a misfire...new spark plugs usualy works pretty well. if that doesnt work check your coils.

[khooper]

It probably just needs a tuneup (changing the spark plugs and spark plug wires.) The spark plugs are always in fire and literally burn up, then they can't explode the gas in the engine with as much power. Idling doesn't generate much power to start with, bad plugs reduce even that and Presto--not enough power to even keep the engine going by itself.

[DevonD]

If your going to do the plugs get NGK..DO not use bosch! they may be great for other cars but for some reason they do not work well with ours.

[allensteiner]

If your going to do the plugs get NGK..DO not use bosch! they may be great for other cars but for some reason they do not work well with ours.

NGK is the only spark plug for japanese imports.

[mtcookson]

Just to be on the safe side, inspect your coils as well. The coils on the VE's are known to crank (plastic case) and cause issues. You can tape them up as a temporary fix.

Besides the misfire does it idle alright or is it jumpy?