PCV Hose
The Positive Crank Ventilation (PCV) valve allows pressure that builds up in the crankcase to escape to the intake manifold. The PCV valve itself is cheap and easy to replace, …
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EGR Block-off Plates
With a coolant reroute, a standalone ECU, and makeshift EGR tube made from plumbing parts, it was time to throw in the towel and block off the Miata’s EGR system. …
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Air Conditioning Compressor Rebuild
When I installed air conditioning in the Miata I started by rebuilding a used compressor with a gasket kit and new front pulley bearing. There were not many references, hopefully …
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Flexible EGR Tube Reroute
The EGR tube carries hot exhaust to the intake when the EGR valve is open. EGR reduces NOx emissions and engine temperature under specific conditions (low load). Some coolant reroutes …
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DIYPNP MegaSquirt 2 (MS2) Assembly
This is probably not a helpful post, but here are some pictures I took when assembling my megasquirt. This standalone ECU has been running my ’94 Miata since 2018 and …
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Valve Cover Paint
2025 Update: This paint started flaking off after about 5 years. I don’t think I used the correct primer, and I should have spend more time scuffing and cleaning the …
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Accelerator Cable Replacement
WARNING: The PIONEER CA-8896 accelerator cable is not compatible with NA Mazda Miatas. It is too short to reach from the throttle body to the gas pedal and it does …
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