Well, what should I check/do at this point? Is it somewhat inconsequential that the car would bounce between the main and knock map at idle? I'm not necessarily sure if it would bounce between the two maps at WOTPL wrote:You're right - once you've fitted a resistor the ECU should never jump to knock maps.
PL
*edit* is the knock sensor the only "input" the ECU looks at in order to go to the knock map? Would there be some other parameter that could put the car onto the knock map? Like a bad ignition coil or spark plug or something?