FP Gauge Working or Not?
 

Yesterday I checked my system pressure by jumpering the FP and closing the valve on the pressure test setup. In this picture its open but you can see how its attached:
http://forums.pelicanparts.com/uploa...1690385681.jpg
71 PSI which is mid spec.

Then removed the jumper wire and without thinking started the car again. Started immediately and rpm jumping around a somewhat. Then realized I had not opened the FP gauge valve. It was closed and the car was running.

Today I repeated this by opening the valve and starting car then took it for a drive everything was normal. When I got home left the engine running and shut the valve again. Engine kept running with wavering idle for a couple of minutes before I shut it off.

I was thinking in the past I had done this once (closed the valve with engine running) and the engine shut off immediately.

This is not a Harbor Freight FP tester. What gives? Or is this normal?

Thanks

Yours is a Lambda-CIS right?

If it's warmed up, it usually will keep running. It may not run well and will be hard to start like that.

OK that is actually good news.

Thanks