car doesnt repond when pressing on the gas, wierd idling

[vasilvia]

Its a 95 Nissan 240sx, I drove the car and had no problems at all right after we rebuilt the motor and slapped a turbo on it. Then I cut the motor off started it back up and it would not rev above three grand in neutral, so I replaced the MAF sensor, that was not it, i then replaced the ecu, that wasnt it either, so then i fixed the MAF sensor wiring where it had been cut, started it up and the car didn't rev above three grand, let it run for a minute and now it doesnt respond to throttle at all, its really wierd, please help!!!.

[steve s14]

you have a problem that is severe enough to put the ecu in the limp home mode.you should be able to retrieve a code from the ecu to point you in the right direction, do not keep throwing parts at it, it will get expensive.if you know someone who has an obd code checker, that would be the easy way to pull codes.otherwise, you will have to access the ecu and do that turning the mode screw thing to get it into mode 3 and get it to spit the codes out.good luck and let us know how it works out.