TwinTurbo.NET: Nissan 300ZX forum - Code 51 advice
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Subject Code 51 advice
     
Posted by msb1987 on January 03, 2015 at 1:08 PM
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Message I have done my searching but now at this point I need some specifics. Long story but here is the abridged version. Rough Idle, balance test indicates that #1 (passenger front) is dead. Switched coil packs, no change, did the screwdriver listening method and was tricked for a day by the echoes. Finally threw a code. All the actual injectors ohm(ed) out at 12.

I haven't gone to the ecu yet. I did put the multimeter on the injector connectors. All but #1 came back at 112 and the meter was set at 2000. #1 was 126.

Do I reconnect the connectors before getting the resistance from the ecu or leave them undone. I already know the actual injectors are fine by the ohms.

My research at ConceptZ show the harness as having a "master" connector before it splits off to each separate connector...where is that "master" connector? How do I test if I need just from that master connector forward or all the way back to the ecu? What should I see when I do the ecu pins?

Thanks for the help.

     
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