silvious

So my girl just picked up a 91 300zx na car 1 owner the guy only drove it like 800 miles a year for the past 3 years or so.......supposedly new plugs injectors all those little things.

So let's say when the weather is nice outside and sunny the car everynow and then but not all the time will hesitate up untill about 3k rpm's and then it act's fine but when it rain's or very humid and alot of moisture in the air the car hesitate's all the time to the point where u feel like you need to pull over and park the damn thing.........I was thinking maf sensor but i really want to ask around first for other possibilities because i really don't know the engine's for shit.

The car also has a little miss to it at idle. any help would be appreiciated and yes i did search but didn't find anything about being humid outside.

Toykoz32

Check the filter. Probably best to replace/ recharge it, if it is a K&N.


For the miss:
Check PTU Subharness
Power balance test
swap around coil pack in the cylinder that has the miss to a good known cylinder
change/check spark plugs ( never believe someone unless you know them )