streetracer8x

I swapped a non vvt 2jzge into my 93 s13. 2jz came from a 94 gs300 automatic. I 5spd swapped with a ar5 but its basically r154 what everybody else uses. My motors runs mint but its stuck in limpmode. Any ideas? I tried jumping the pins for the diagnostics but no malfunction light when i turn the key on. New spark plugs, wires,capnrotor, egr delete. Just indtalled the 02 sensor after the cataltic convertor.

streetracer8x

Bump i retouted the vacume to have the butfeffly valve and it dident make. Difference. I cant get the co puted to run diagnostics

silviamang

By limp mode what do you mean? It wont rev past a certain RPM and is dumping fuel?
Try and borrow another N/A nonvvti 2JZ ECU(GS300,SC300, Supra) to see if that changes anything. Then maybe see if your Throttle Position Sensor is within spec.

streetracer8x

Yea so i tried swapping my brothers ecu out of his 92 sc300. My ecu ended up fixing his car and turns out his was bad so i know for a fact my gs300 is good. We also swapped mafs and mine worked on his car with my ecu mint. So i deleted the catalitic convertor and im running a mk4 supra header. It defintaly made a huge difference since the cat was callapsed inside. I upgraded to a z32 fuel filter. New Walbarro 255 fuel pump. My bro checked my timing belt and that point. Where gonna check the ignition timing on the distibutor next. Then if that dont work im gonna replace all the o2 sensors. I also rewired all the power sources for the computer. Bassically like 6 wires need switched 12v to 10amp fuses to get the car to run. Then theres 2 other wires that are connected to a constant source in the car.

streetracer8x

Still in limp mode bassically falls flat on its face around 4000 rpm. I compared it to my bros auto sc300. His revs way higher to his limitor. Mine definatly cuts out way before his does.