Quote:
Originally Posted by tom1975
Thank you tony !!! really fun that we have professionals like you who help us 
I have a large o-rings,i need to buy other , it should sit within the sleeve as in the pictures I attached,yes ?
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Tom,
I'm not a professional auto mechanic just another typical DIY'er that enjoys
CIS troubleshooting. The bottom picture shows the correct way. The pressure gauge you are planning to buy has more parts you don't need nor use for your car. You need a simple set-up with the correct metric fitting and a shut-off valve. That's all I use all these years. A
$55 CIS kit from
J.C. Whitney purchased twenty years ago and still in great working condition.
Correction: I mentioned in my previous post that the injector o-ring should not be visible.
That's not correct. It should be visible like shown above. I was thinking of the other o-ring. My mistake.
Don't forget to pressure test the system. Use an air compressor or tire pump compressor to pressurize the system (engine) and look for sources of air leaks. Without a CIS pressure gauge kit, you won't know how much control, system, and residual pressures you have now. And you are hoping they are within spec. Unfortunately, knowing these data is critical to how your engine performs. Keep us posted.
Tony