Originally Posted by Mastayado55

Ok i did another test today , This time i took all spark plugs out, pulled fuel pump / srs fuse out and I got this results
180
180
180
180
As always try to start the car for 10 sec on each test and had gas pedal at WOT and car was hot.

My concern is why my conpression is so low. Lower then factory specs suppose to be 250 psi/


And why i had 150 on first piston, 170 on 2nd, 170 on 3rd, and 180 on 4th the other day and today i got same reading for all pistons , but still way too low for facroty specifications
\Any ideal what this might be????