Hi everyone,
I am new to the turbo world. Just bought an 87 GN with a few mods. I don't know all the details of the mods but I do know it has an upgraded turbo, upgraded cam, Shift kit and stall converter and upgraded inter cooler (sits in front of rad) Car runs great once warmed up. On cold start it starts instantly and when running on fast idle its very smooth. As it warms up (within 1 min) and the idle drops to normal the idle becomes very eratic and surges up and down. Eventually it just stalls unless I feather the peddle. I have to feather the peddle for at least 2 mins until it warms up and then it settles down and will stay running. Car runs great after that but I will say that even after warmed up there is still a slight fluctuation in idle rpms when at a light etc...
If I go for a drive and then come home , shut car off and then an hour later start it back up the same thing happens. There are no other issues. The car accelerates smoothly and runs great.
Not sure where to start. Could it be MAF or Throttle body needs cleaning ?
I am new to the turbo world. Just bought an 87 GN with a few mods. I don't know all the details of the mods but I do know it has an upgraded turbo, upgraded cam, Shift kit and stall converter and upgraded inter cooler (sits in front of rad) Car runs great once warmed up. On cold start it starts instantly and when running on fast idle its very smooth. As it warms up (within 1 min) and the idle drops to normal the idle becomes very eratic and surges up and down. Eventually it just stalls unless I feather the peddle. I have to feather the peddle for at least 2 mins until it warms up and then it settles down and will stay running. Car runs great after that but I will say that even after warmed up there is still a slight fluctuation in idle rpms when at a light etc...
If I go for a drive and then come home , shut car off and then an hour later start it back up the same thing happens. There are no other issues. The car accelerates smoothly and runs great.
Not sure where to start. Could it be MAF or Throttle body needs cleaning ?