Re: Engine computer & timing - EL
No, it's the base reference point for the timing. By bridging out the diagnostic pins, the EEC runs the timing at the minimum point which it thinks is 30 degrees BTDC. What ever you set the base timing at, the EEC thinks it is 30 degrees and then when running normally, adds its normal timing curves to. If you don't set it with the pins bridged, you don't know how much timing the EEC is adding at that time so it is not accurate, but some people do it.