Hey everyone, sorry for posting a redundant topic but I'm confused about the compression levels and methods of performing a compression test on the 1zz. I read some folks say to take a reading with throttle open, some say it doesn't matter. I tested both ways with a cold engine, dry cylinders, 5...
Ok, so I read the how-to on compression testing, along with my tester manual. I tried both cold test and after engine warmed up. Readings were
#1 - 130
#2 - 132
#3 - 118
#4 - 134
After the first attempt (I only tried cylinders 1 and 2, freaked when I saw the low readings, then read that...