Quote:
Originally Posted by boyt911sc
Psycho,
Your above post is half correct and half false. The CIS 911 cars from 73.5 to ‘75 do not have air flow sensor switch and fuel pump relay. The fuel pump runs as you turned the ignition switch to RUN position.
However, your above post is correct for ‘76~’83 CIS cars but not for the early models. Where did you get this information?
Tony
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Hi Tony,
I guess it was introduced as vehicles became safer.
I had a broken diode in my relay. And I could see the sensor plate switch spark when I let it back down (long before I got the engine to run)
So I checked out the current flow diagram and traced it back to the fuel pump relay.
I cut the relay open and found the faulty diode.
So I quest the second part of my information I got from experience 😂
Cheers,
Frank