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1994 Mazda Miata , Engine/Propulsion Waveform
Posted to the Waveform Library on 2/26/2010

Cranking compression shows out of time. Look at the peak while cranking shows low. Look when the intake valve closes around 90 degrees it should be around 50 give or take /-10.

 

car Vehicle Data

1994 Mazda Miata 1.8L

Engine1.8 L / 4 cyl / GAS
Trans5-speed StandardTransmission
DeliveryFuel Injection
SubsystemEngine/Propulsion
Component
ConditionKnown Bad

car Vehicle Data

1994 Mazda Miata 1.8L

Engine1.8 L / 4 cyl / GAS
Trans5-speed StandardTransmission
DeliveryFuel Injection
SubsystemEngine/Propulsion
Component
ConditionKnown Bad