Started off missing from sitting couple days at a time

1992 MAZDA B2600
280,000 MILES
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LMC55
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After a fast idle would clear up
Replace all 4 injectors now have no fire on 2 and 4 inj. wires.
Will start,takes a hold lot of cranking.MISSING BAD when starts,maybe running on
1 and 3. Could this be the ECU
Sep 8, 2012 at 1:07 AM
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KHLOW2008
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# 2 and # 4 injectors shares the same circuit. If you have battery voltage to the Black/Yellow check for continuity for the Light Green/Black wire to the ECU Connector #2 terminal "V". If continuity is available, the ECU is most likely faulty.
Sep 8, 2012 at 10:41 AM