TwinTurbo.NET: Nissan 300ZX forum - Code 51: Lets try again
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Subject Code 51: Lets try again
     
Posted by -Grimm- on August 31, 2015 at 5:18 PM
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Message Ok so Ive been all around on this one. My new rebuild (50 miles) runs great, smooth idle, plenty of power even with minimal boost, not rough at all...

Yet the ECU still gives me code 51 (Injector Circuit).

I have tested all the injectors, ohm fine.
I have tested the injectors through the ECU harness, all still ohm good.

Assuming the ECU was having an issue, I called JWT but they told me the ECU sounds to be working fine considering it is sending out diagnostic codes.

So... whats next to check?

Can doing the switched injector voltage mod cause this code?
Can deleting anything cause this code (PRVR, AIV, EGR, CC, safety boost solenoids)

Thanks... hopefully we can figure this out this time

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1992 300ZX NA 5 Sp (Dead)
1990 300ZX NA Auto 2+2 (Dead)
1990 300ZX TT 5 Sp (Stock Turbos) (Est. 400 HP)
1990 300ZX TT 5 Sp (GT600R) (Est. 600 HP)
2004 G35 Sport 6MT (DD)
2008 Honda Civic (DD)
1969 Chevy C10 (Toy)
1969 Chevelle (Toy)

     
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