Hello.
I completed a JDM 1UZ VVTi swap into a 94' SC400 about 4 months ago. The engine came from a 2000 ~ 2002 Majesta and the 5 speed gearbox is a Nissan. I am using the JDM ECU that came with the engine and a ATEMU to simulate the AT.
The vehicle is a track car. Chassis was completely striped down and built back up with a roll cage and the bare minimum required to run on a track.
The engine fires right up and I have taken it around the block (20 mph) a few times without any noticeable issues... However, I do not have a code checker at the moment so it could have a 100 codes for all we know....
Have a few things I need help with:
#1 - I would like to use a ODB II app or a standalone unit as my gauges... I am not sure winch wires are needed to run a ODB II unit... From the JDM Majesta diagram I see that the ODB II plug uses WFSE, TC, TAC, and SIL along with GROUND and 12V. Which ones do I need and which pins do they goto on a ODB II plug?
#2 - The throttle only seems to open about 25%... From what I understand the throttle system on the VVTi motors operate on a hybrid system: the mechanical part only opens so much and the rest is via electric motor. How can I test it to see if the throttle system is working properly or not?
#3 - What ODB II code reader and gauge unit does everyone recommend? I have a cheap hard wired standalone unit in my Ford pickup but it has a delay of about 1 ~ 2 seconds on the RPM and O2 readout and a very small screen.
Thanks
Adam
I completed a JDM 1UZ VVTi swap into a 94' SC400 about 4 months ago. The engine came from a 2000 ~ 2002 Majesta and the 5 speed gearbox is a Nissan. I am using the JDM ECU that came with the engine and a ATEMU to simulate the AT.
The vehicle is a track car. Chassis was completely striped down and built back up with a roll cage and the bare minimum required to run on a track.
The engine fires right up and I have taken it around the block (20 mph) a few times without any noticeable issues... However, I do not have a code checker at the moment so it could have a 100 codes for all we know....
Have a few things I need help with:
#1 - I would like to use a ODB II app or a standalone unit as my gauges... I am not sure winch wires are needed to run a ODB II unit... From the JDM Majesta diagram I see that the ODB II plug uses WFSE, TC, TAC, and SIL along with GROUND and 12V. Which ones do I need and which pins do they goto on a ODB II plug?
#2 - The throttle only seems to open about 25%... From what I understand the throttle system on the VVTi motors operate on a hybrid system: the mechanical part only opens so much and the rest is via electric motor. How can I test it to see if the throttle system is working properly or not?
#3 - What ODB II code reader and gauge unit does everyone recommend? I have a cheap hard wired standalone unit in my Ford pickup but it has a delay of about 1 ~ 2 seconds on the RPM and O2 readout and a very small screen.
Thanks
Adam