TwinTurbo.NET: Nissan 300ZX forum - TT won't rev past 2000rpm
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Subject TT won't rev past 2000rpm
     
Posted by Crim on July 24, 2016 at 8:21 AM
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Message Hey! My Z has sat for ~year or so as I've been busy traveling. Cranked right up after giving the battery a charge, but it struggles/hesitates really bad and basically dies out at around 2000 rpm (not the 2.5K fail safe rev limiter).

Here's what I know:
* No ECU codes (55)
* Via consult TPS reads within range
* Via consult power balance test looks good (flipping each cylinder off individually)
* Via consult MAF reads 0.8v with ign on, and 1.3v at idle
* When you give it throttle, wide band reads off the charts lean (21+afr)
* If I disconnect the MAF it revs cleanly or w/o hesitation up to the 2.5K rev limiter

Any ideas? Things to check? I'm thinking a bad MAF, but the voltage seems in spec.

1990 2+2 TwinTurbo

     
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