Jacob thanks for the info thats what I was wondering. the turbo is probably functioning properly. I haven't really punch it too hard but I have gotten the light to come on...it doesn't stay on that long but maybe thats cause I'm not punching it hard enough. The engine doesn't run poorly when the light comes on so I would assume the turbo working properly. Once I get the motor dialed in more I'm sure I'll be able to notice more of a difference.

85 SR5 4runner....Too many hours of work put into it, Hacked, Beaten, and Still running after all I've put it through

87 Turbo Pickup...Bought Her for $500 put another $500 in her and she's running like a dream.