I'm new so hello to all of you. I just bought a 91 supra turbo. The previous owner took good care of it and the car runs great. Drove it 1200 miles including 500 miles in a single day trip to the coast last week and didn't have a single issue. He put a catback exhaust on it along with a HKS SSQ Blow off valve. It sounds nice and part of the reason I bought it. The only issue I'm having is that sometimes when I get on it and let off quick, for example just speeding to a stop, It wants to shut off when I let off the gas. If I push it and keep going and let it coast such as speeding on the highway I have no problem when I finally come to a stop. Another thing I would like to point out is that it does it when its low on gas sometimes, not empty, more like hovering around a 1/4 tank. Also it backfires when I shift sometimes on boost. I did some research on the HKS BOV and it said it causes it to go rich in between shifts because it doesn't recirculate the air or something and that it is good for high boost/power applications. It also explains the backfires. I wonder does this rich condition also causes it to want to shut off instead of idling. This is my First Real Turbo car I've owned. I always liked mk3s and I finally had the chance to get one. My other car is a 93 Toyota Corolla. Theres the big difference.
