i im tired of working on my girlfriends car and i need some help so i can relax....she has a 90 240sx with the dohc motor from a 91, the motor had 100,000 miles on it but thats ok, when we drive the car it accelerates poorly and its like its choking or cutting the fuel cuz we start to accelerate and then it throws you forward a little bit when it chokes...

there is also a weird buzzing noise coming from the guages area by the tach, it sounds like a board game buzzer, but it used to stay on only when i press the gas pedal but now it stays on sometimes when i have the clutch in decelerating...

also the ebrake light is on constantly and i know its not stuck or anything cuz it goes off when im cruising at the same speed for a bit and then as soon as i press the clutch in it comes on....

WTF!! im tired of the car, i have an ae86 that i need to work on instead..... thanks

 

For the first problem, check the MAFS - it's common on 240's

#2 - might be just physical vibration (harness behind the cluster, some screw that fell in a vent, etc.

#3 Inspect the ebrake mechanical switch (under the center console)

That should give you a good head start hopefully

 

the buzzing isnt vibrations, it really buzzing from the tach area

i dont think the switch ir wires arew the problem with the ebrake deal but i will chech that out...

do you know where i can get a good cheap maf?