I have a 1976 triumph spitfire. The mechanical pump failed and the previous
owner replaced it with a electric fuel pump. My question is will the
electric fuel pump increase the fuel pressure to the carb and cause the
mixture to be slightly rich at idle? I have rebuilt the carb and I also
blocked off the choke circuit to make sure it was not causing a problem. I
also completely closed the decel valve to make sure it is not leaking. The
vehicle does not have a catalyst as it is a Federal Vehicle. On a emission
analyzer I see(with the air pump connected):
Idle
HC 460
CO 3.6%
At 2500
HC 63
CO .46%
Any assistance would be appreciated as I have to pass a california DYNO
test. Thanks Bobby.
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