using mazda compression tester :(
I'm thinking this is a dumb question, but is there anything magic to getting a mazda compresison tester to work? The motor is making compression (I can hear it) but when I hook up the tester and turn over the engine it doesn't read anything, RPM or compression.
Is there anything obvious I'm missing? I did just purchase it, but had verification that it works and I don't doubt that... so what am I missing? I'm going to try tightening the pressure sensor in the engine. Yes I'm using the leading holes, and the tester does have an Oring for sealing on the housings. TIA |
Don't Laugh but Ive seen guys take both leading and trailing plugs out try then check compression. I'm sure you didn't do this...?
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