Hi, I have had my link G4 fitted and mapped to my R33 GTR for over a year now but it recently started to hit what felt like a rev limiter or misfire at 5k while driving down the road.. After doing some basic engine ignition/ fuel checks, and all were fine. I started to look at the setting on the ecu. (I am a mechanic but have no mapping experience) I found the ignition trim for launch control was set to 5k. I have confirmed that launch control is continuously active. Launch RPM activation is set to 6k at 0 ground speed and 8k above 10 ground speed. If i turn launch control off the car will drive and rev all the way round to the RPM limit.
So I am amusing the link g4 is not seeing a ground speed and think the car is always at a stop. Can anyone tell me where to check what ground speed the ecu is seeing? And what wire the signal should come down?
Launch control always active
in Link G4
Posted
Hi, I have had my link G4 fitted and mapped to my R33 GTR for over a year now but it recently started to hit what felt like a rev limiter or misfire at 5k while driving down the road.. After doing some basic engine ignition/ fuel checks, and all were fine. I started to look at the setting on the ecu. (I am a mechanic but have no mapping experience) I found the ignition trim for launch control was set to 5k. I have confirmed that launch control is continuously active. Launch RPM activation is set to 6k at 0 ground speed and 8k above 10 ground speed. If i turn launch control off the car will drive and rev all the way round to the RPM limit.
So I am amusing the link g4 is not seeing a ground speed and think the car is always at a stop. Can anyone tell me where to check what ground speed the ecu is seeing? And what wire the signal should come down?
Unit is a PnP link G4 for Nissan Skyline R33 GTR.
Thanks