mark taylor 0 Posted October 7, 2004 Report Share Posted October 7, 2004 Anybody know what the group numbers are for obd1 and what the data means.Its fine having all the live data but i dont know what where the readings are from. Link to post Share on other sites
FishWick 21 Posted October 8, 2004 Report Share Posted October 8, 2004 Blocks 1 - 5 report data for OBD1. The data is self explanatory, rpm, inlet temp, ISV duty cycle, coolant temp, engine load percentage, etc etc The readings are collected from the appropriate sensors by the ECU. Handy data to know when you're tuning on a rolling road for example.Ignore the EGR valve reading as UK cars don't have an Exhaust Gas Recirculation valve. Link to post Share on other sites
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