[silver_shadow]

Originally Posted by vid6639

What's the compression numbers your getting? Have you done the compression test by disconnecting the fuel pump?

The compression for the Lancer is 180psi. Mine is barely 160psi.

what significance does this have?

[Vid6639]

Originally Posted by silver_shadow

what significance does this have?

I did it once without disconnecting the fuel pump. The compression numbers did not cross 100psi. I asked Sideways (Farhan) and he informed me that you need to turn the fuel pump off so that fuel is not injected into the cylinder.

If you remove the plugs and crank it with fuel pump on you will get petrol wash resulting in erroneous numbers for compression.

[silver_shadow]

Originally Posted by vid6639

I did it once without disconnecting the fuel pump. The compression numbers did not cross 100psi. I asked Sideways (Farhan) and he informed me that you need to turn the fuel pump off so that fuel is not injected into the cylinder.

If you remove the plugs and crank it with fuel pump on you will get petrol wash resulting in erroneous numbers for compression.

oops yea. good point. you do need to remove the fuel pump.