Jamison Gleich

If anyone could help it would be awesome. I bought a 1993 Nissan 300zx NA 2+2. I did a full tt swap. I am having trouble with it. The car will start every time, it will idle for hours, but it will not rev over 4000 rpms. I have bought new sensors, but still have not gotten a change. I have 2 or 3 mass air flow sensors, 2 or 3 tps sensors, I have replaced several parts. But still cannot get it to run over 4000 rpms. I checked for codes on the ecu self diagnostic and it reads code 42, I have replaced the fuel temperature sensor and also the the wire connector itself, it reads 14 volts, but I still have the code. I will post links to 2 videos showing the car having this problem.

zleeper

One thing I overlooked when swap was going with TT fuel pump. It runs out of fuel at top end. To do this you will have to run a wire to your ecu. There is tt wire from pump to under the dash but it ends there in 2+2.Oh yeah. You have to have tt ecu too. Hope this helps.
zleeper

Barry'Z(NJ)

While you must use a TT (or some other upgraded) pump to handle the higher fuel requirements, you can run the TT pump with the NA controller. You just get two speeds/flow-rates out of the TT pump, high and low, rather than high, medium, and low, that running the extra wire and TT controller will yield.