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This Mass Air Flow Sensor / Small Early Style Power Transistor Repair Harness replaces the faulty connection on your Mass Air Flow Sensor or the small 6 pin side of your Early Style PTU. Z1 also sells this connector and the components to build your own repair harness HERE

Factory connectors under the hood are often brittle and broken leading to irritating drivability problems.  To make things worse early style connections were not sealed weather tight which leads to corroded connections and poor operation.

Now you can repair your harness with our updated repair harness.  This harness uses weather tight late model genuine Sumitomo connectors (like the ones used in 1995+ harnesses) with appropriate gauge stranded copper wire.

Don't settle for inferior alternatives, use the connector that Nissan used to correct this weak point in the EFI harness.  Each order includes connector the replacement harness and 4 pieces heat shrink tubing to assist in the clean look of properly spliced wires.


  • 1990-1996 Nissan 300ZX (Z32) 


Reviews Ask A Question About This Product

Questions our customers have asked...

I notice that this replacement MAF connector has 4 connectors; the original one in my 1990 300zxNA has 5; wouldn't that be a problem? Please advise. Thanks, Iván

Response: Ivan, The 5th wire can be de-pinned and reinstalled in this housing or you can eliminate it. If your harness is in good condition you can de-pin all the connections and install them into the new housing available here: (Link)