94 maxima no fire on 2/4/6

[kevincl]

Hello, my 93 Maxima 3.0 sohc is running real rough, it ideals fair but under load shakes and has little power. In the last week I've changed distributor cap/rotor/plugs/wires/ECTS/pcv/and fuel filter and cofirmed timing. Today as I was scratching my head I pulled the number 2 wire from the plug as the car ran and it did not change a thing. I then pulled 4 and 6 and the still ran the same (i was idling). I put those wires back on pulled 1/3/5 one at a time and each one made the car stall. I used a screwdriver and heard the fuel injectors working in all locations and checked resistance on 2/4/6 and they are around 30-35 with engine off and warm. Pulled the air intake to look below it for any loose or corroded wires or connectors and didnt see anything. This is my only car so I am desperately hoping to find the problem. Any help at all would be greatly appreciated.
KC

One more thing is I did check for fire on the spark plugs and they are fine. Thanks

[kevincl]

My heading was incorrect... it is a 1993....kc

[Nahkapohjola]

Originally Posted by kevincl

Hello, my 93 Maxima 3.0 sohc is running real rough, it ideals fair but under load shakes and has little power. In the last week I've changed distributor cap/rotor/plugs/wires/ECTS/pcv/and fuel filter and cofirmed timing. Today as I was scratching my head I pulled the number 2 wire from the plug as the car ran and it did not change a thing. I then pulled 4 and 6 and the still ran the same (i was idling). I put those wires back on pulled 1/3/5 one at a time and each one made the car stall. I used a screwdriver and heard the fuel injectors working in all locations and checked resistance on 2/4/6 and they are around 30-35 with engine off and warm. Pulled the air intake to look below it for any loose or corroded wires or connectors and didnt see anything. This is my only car so I am desperately hoping to find the problem. Any help at all would be greatly appreciated.
KC

One more thing is I did check for fire on the spark plugs and they are fine. Thanks

1. Injector harness/connectors are grouped 1-3-5 & 2-4-6
...bad connections? ECU fried?

2. Injector resistance readings seem to be too high, compare also with the working cylinders 1-3-5

3. Fuel doesnt reach 2nd (rear) rail, joint rubber hose blocked near ECTS
... soot inside?

4. All six cylinders get good spark - and you tested all 6 with a spare plug? The cap is ok, firing order ok?