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I think the car is going into lockup fine since it shifts 4 times (4 speed) and has another spot that feels like another gear (lockup). It is doing about the same RPM in both good mpg vs not so good and going faster, say 50mph or 55 does not show better mpg but worse.
I need to check the idle IGN readings, I think it is around 8-12.
I talked to an engeneer today about this since he had pc issues (i'm a computer tech), and he thinks it is the knock sensor.
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