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1992 Mazda Truck Running on 2 cylinders

Tiny
PAULWHEELER42
  • MEMBER
  • 1992 MAZDA TRUCK
  • 4 CYL
  • 2WD
  • MANUAL
  • 102,000 MILES
Cylinders 2 and 4 are getting spark but are not firing. So far I have replaced the oxygen sensor, plugs, distributer cap, rotor, wires, fuel filter, and fuel injectors (all 4). When I disconnect the wires to cylinders 2 and 4 there is no change. If I disconnect wires to either cylinders 1 or 3, the engine dies. Any idea what I should replace next? The problem started suddenly.
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Thursday, July 24th, 2008 AT 2:35 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Sounds like 2/4 injectors are not pulsing-hook up a noid light and test

Check for power at black and yellow wire at injector harness 2/4 if present-do a continuity test on the light green and black all the way to the computer this is the ground driver circuit.
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Thursday, July 24th, 2008 AT 3:00 PM

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