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Old 10-17-2003, 10:49 AM
sbourg sbourg is offline
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Join Date: Jul 2001
Location: SoCal
Posts: 1,303
It takes a lot of fuel rate to move a car at 130 mph, and it will be about the same rate whether in 3rd or 4th. The difference is the engine speed, and missing at high rpm might be a coil or HV problem.

If the problem only shows up in acceleration tests, try to keep the variables from confusing the issue. E.g., try to keep apparent acceleration the same as you pass a given speed in different gears. This can isolate between fuel delivery and ignition problems. a vacuum gauge connected above the throttle valve can also isolate an airflow meter problem.

'91 MB 190E 2.3
'08 RAV4 Ltd 3.5
'83 Lazy Daze m'home 5.7
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