NWilner wrote:BTW what is "T3" and what does it mean to go there?
T3 is an independent shop in Atlanta that specializes in Infiniti and Lexus. They have a couple of techs. that specialize in the 90-96Q and probably replace more timing chain guides (in the 90-93) than any other single shop anywhere. I call it the "Q Mecca" - many dead Q's sitting around the yard, and the best service hands-down. An added benefit is that Q45Tech hangs out there on a regular basis and has his run of the place. Having him go through your car is as valuable as having the team of engineers and designers who built it on hand!
One of the problems with dealership service on an older car, is that the techs. that are there now may not have been there when the cars were new. If so they don't have a great deal of old Q experience, and didn't receive the factory training on them.
It's absolutely amazing how much service differs from place to place. I took my Q to the dealership several times after they did some work on it. Mostly complaints about a lack of power compared to how I had felt it ran in the past. Their best answer was "well - some just run better than others..." Took it to T3 and Dennis immediately identified the knock sensor harness issue (damaged by dealership) and dirty injectors. New harness, injector flush, and she was back to her old self!
Heath