TwinTurbo.NET: Nissan 300ZX forum - When my fuel pump controller went out, it was intermittent
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Subject When my fuel pump controller went out, it was intermittent
     
Posted by baggar11 on October 23, 2014 at 4:51 PM
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In Reply To Have you ever had a fuel pump controller/fuel pump posted by ZTicket(Dallas) on October 21, 2014 at 12:43 PM
     
Message It was always while I was driving on the freeway. I'm assuming the "3rd speed" on the FPCU was going out.

When I slowed down or idled, the problem went away. I thought it was the PTU for the longest time, but then I pulled FPCU and did the bypass. No issues after that. Located a used FPCU to replace my existing unit.

Good luck.

-baggar11
1987 300zx n/a (sold)
1990 300zx TT

     
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