Few Mr2 questions??

[andyeagle19]

It doesn't really sputter under boost, actually it is smooth until redline. But the turbo cannot hold boost, I can hear the turbo spooling faster and then slower constantly. But there is no known sputtering of the car. The car is a 1992 with only 80,000km on it right now. I have always changed the oil and such things like that, but never really thought to check the ignition system. I am using about 98 RON fuel right now. Thanks for the help.

[andyeagle19]

Nevermind all! I seemed to have fixed the prob. I did not have the boost controller fully hooked up, there was still some factory boost controller functions being used. This would explain the variance in boost pressure! Thanks for all the suggestions though!