So i bought a 94 rx7 fd not too long ago and upon purchasing it i replaced the whole fuel system because we thought that was the problem with the car choking out. it did not help but the system still needed to be replaced so no harm done... so now im sitting with a rx7 that wont rev over 3000 rpms without choking out and backfiring. the turbos seem to be going out and the guy that i bought it from said the car is running non sequential. anybody have any ideas? i checked the engine and the compression is fine...

 

Sounds like limp mode. What are the ECU codes?

 

the check engine light doesnt come on?

 

Check that the MAP sensor is plugged in. If its unplugged, the car will choke and sputter once the turbos start to spool up.

Check it out and let us know.

 

i read that alot of the fd's stutter around 3k, probably not as bad as what your talking about tho

 

well i tried the map sensor and it was hooked up. we rebooted the ecu and it fired up perfectly but then whenever i shut it off and turn it back on, it seems to go back into limp mode? one of the harness on the ecu does not seem to clip in right. think that could be it? maybe the tps?