Daily Archives: Sunday, 4 October, 2009

I am in the process of undertaking a DIYPNP project for my 1991 MX5. This new kit is based on the Megasquirt II design and won’t work with the existing Megasquirt I baseline maps. I may try to use the 1.8L MX5 DIYPNP maps but I plan to double check these settings against the known base settings for the 1990-1993 B6 engine.   B6 (MSPNP) BP (DIYPNP) Standard Constants     Required Fuel 13.4ms 13.0ms Injector Opening Time 1ms 1ms Battery Voltage Correction 0.10ms/v 0.20ms/v PWM Current limit 100% 75% PWM Time 25.4ms 25.6ms Fast Idle Threshhold 80.0F 140F Barometric Correction ON ON Control Algorithm Speed Density Speed Density Squirts per Engine Cycle 2 2 Injector Staging Alternating Alternating Engine Stroke 4-stroke 4-stroke Number of Cylinders 4 4 Number of Injectors 4 4 MAP type 400kPa 400kPa Engine Type Even … Continue reading →