Bench ecms

EFISYSTEMS at aol.com EFISYSTEMS at aol.com
Thu Aug 20 01:36:32 GMT 1998


Hi Ross,
   It does look confusing but 2A0 is the rpm when it will go to closed
loop(after its timer) and 2A1 is the rpm when it will go back to open
loop.....example if 2A0 is 28 and 2A1 is 00, once the engine has seen aprox
1025 rpm it will activate the closed loop timer and never go back to open loop
until it sees 0 rpm(you have shut the car off)  whereas if 2A1 was to say a
higher number than 2A0, closed loop would shut off at that higher
rpm....another example 1987 454 bin AZFT   has 2A0 and 2A1 at 26 and 30
respectively therfore staying in open loop at idle,(kinda hard to smog after
the engine gets old)  HTH's
-Carl Summers



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