ok so im trying to do a compression test on my 93 3000gt vr4 i have 167,000 miles on it. I have never performed a compression test before i have tried searching in the forum but i cant get the right information.Can somebody tell my how this has to be done i need to know if its normal for the compression test to be giving my 75 psi and is the car suppose to be warm or how does it work please help
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