89 supra turbo missing after warm

[jtown125]

I think tennessee puts a curse on supra lover's. lol

On warmup I can understand missing.
But after its warm there is a problem.


I have absolutely no idea what the water temp sensor would have to do with it,
but mine doesn't read right anyway...
And im just guessing that the knock sensor picks up due to the upgraded turbo and boost... and especially if its missing...
but it could be much worse than that.
im just as confused as you are on the fact that it doesn't miss at the higher rpm's.

I would start with the o2 sensor, i have had problems with other cars I have had that are similar to the problem that you are having.