hey wassup .. i jus did a compression test on a 1995 gsr .. it was my first time doing it so i made some mistakes .. i remember reading that the car had to be warmed up but i forgot and did it while it s been sitting for about 30 to 45 minutes .. my numbers came out really bad so i was wondering if that could ve been the case ? .. it was really low .. 160 - 145 - 145 - 155 .. the car runs find but is burning oil .. what r your advises ?

 

Redo it the right way. Warn up the car because I did my the way you did and I got some low number too, it was like 150 to 155 across all four but my was a LS.Then I redo it the right way and it show 180 to 185 across all four. Open the thottle body before cranking and let the car warm up and remember to take out the ECU fuse so it will not spark and send fuel.

 

Yeah you need to do it the right way. I also did mine wrong and came out with 147 across and then did it right and came out with 18o. Here this might help, it did for me: http://www.c-speedracing.com/h...t.php

 

Compression test:

Pull all the spark plugs
Crank engine over 5 times and record highest measurement
Car should be pretty much well warmed up or operating temp

The numbers you got werent that bad, i dont understand why people on HT think those are horrible. As a technician i wouldnt have even hesitated to ship the car with those numbers... If there all about the same and within around 80% of the suggested psi then no big D.

 

When doing a compression test the 15A fuse for FI needs to be pulled and it needs to be done at WOT. Like I said here...allow me to quote myself...
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SlammedDC2 &raquo;</TD></TR><TR><TD CLASS="quote">Yeah you need to do it the right way. I also did mine wrong and came out with 147 across and then did it right and came out with 18o. Here this might help, it did for me: http://www.c-speedracing.com/h...t.php
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