????? i have a problem with my 1996 240sx i was wondering if anybody heard of a car not being able to go above 5000 rpms and booging out all the time i have a s14 sr20det black-top w/a rom tune and a t3/t4 turbo w/550 injectors i was wondering if anybody had any ideas on what is happening????

it was sitting around for about 5 months but before that it ran fine
i checked the spark-plug and coil packs they are working fine i was wondering if the rom tune could cause problems???? or anything else

 

check fuel pump? i guess change fuel filter while your at it. and check gas, maybe a bad tank of gas could've nuked your car.