MX-5 Miata L4-1597cc 1.6L DOHC (1992)
CHECKING FUEL PUMP SWITCH IN AIR FLOW METER
1.
Remove air cleaner upper section.
2.
Check for continuity between fuel pump relay harness connector terminal Fc and ground, while manually opening metering flap in air flow meter.
^
Continuity should exist as soon as the flap opens, and there should be no continuity when the flap is closed.
If there is no continuity to ground with the flap open, check for open in wire between fuel pump relay terminal Fc and air flow meter, or open in
ground wire between air flow meter terminal "B" (black wire) and ground. Repair as necessary. If wiring is OK, repair switch in air flow meter or
replace meter.
