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1995 Sc400 Hesitation


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I have tuned up my car this past winter with new plugs, rotors & caps, pvc, antifreeze and air filter (car has 49,000 miles on it). The car ran great for the past couple of months but lately I have notice a hesitation off the line, like a loss of power for a moment (like it can’t get air) than the engine opens up fine. I have cleaned the air filter, which looked great but not sure what else to check. I have never put a timing light on the engine to check it and did notice marks on the flywheel pulleys when tuning it up, should I and how would I make adjustments with two distributors? Thank you for your help :)

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Not sure but a free try is to disconnect your battery from the car for a minute or two.

This will wipe the processor back to ffactory and if you had bad gas recently, the computer will !Removed! the engine to keep it from getting damaged.

I think you loose about 20-40 horse when the cpu retards the engine from this bad gas detection function.

It won't hurt but you will have to reset your clock and raio stations.

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Hey, thanks for the useful tip. I finally got around to disconnecting the battery last night and I do notice a difference in acceleration. I would say it is 75% better. Thanks again for your help :)

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I occassionally have the same problem when I run the car without much warming up. It happens as I push the gas very soft for soft starting. When the car hesitates a bit, as I hit the gas harder, it will regain the torque.

I will try disconnecting the battery as well.

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