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On the bog down issue. I would check the throtttle switch. I believe there might have been a wide open positon (full losd signal to the computer map) on earlier cars. Not sure about the 90's plus cars.
For sure check the plate opening rest adjustment, in the full closed position. Cleaning the throttle body this makes a good maintenance cure for a lot of minor things of that nature.
If you can, try to satisfy that the engine is operating up to proper temperature. The thermostat and the computer temperature sensor need to be in sync. Someone mentioned the thermostat, its worth doing.
I have very good luck with Wahler brand brass material thermostats. I have had Clairostats become lazy opening up all the way, was the first sign, then sticking closed.
Luckily it was with in a half mile of home, just recently. Burnt out the header down pipe gasket and warp the flange on it. It could happen with any brand but when I opened it up. There it was that brand that I had tried because that was what was being sold from that parts dealer at the time.
A reason I get more picky with my age, I think!
The instrument gauge only tells half the story and if hasn't been tweaked, it can lie a little. Look into that if you ever have to pull the instrument cluster.
Flush the brake system with new fluid if it looks brownish in the reservoir.
I like the non-contact infared thermomers for checking the outlet housing and the brake rotors on a comparsion walk around after driving the car. It helps to rule a chance of having a dragging brake pad. Experience has shown me, it is hard to spot a bad rear brake caliper.
Thats about it, don't want to make this too long.
Phil
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