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1997 DIYPNP turbo miata

 
Old 12-24-2018, 01:32 PM
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Default 1997 DIYPNP turbo miata random tach drop

turbo miata randomly drops tach and feels like the rev limiter is active
I got a log of it happening but im stumped.

1997 miata diynp
ISR rs3871 on trackspeed manifold
NGK R5671A-7 Spark plugs gapped down to .20
switch in and out coil pack with another known good coil pack.
different wires

I sunk this car underwater before putting a built motor in it.
FYI the megasquirt was underwater for a good minute and then rinsed off in my kitchen sink.
I replaced the coil pack 02 sensor and cam angle right after this so these are semi new.
my tune and a log of the event is enclosed
Attached Files
File Type: msl
mewwwww.msl (115.7 KB, 10 views)
File Type: msl
mnewwww 2.msl (358.4 KB, 9 views)
File Type: msq
CurrentTune.msq (119.1 KB, 10 views)
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