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Re: 808 ECM with 12p on a sc v6 with cam idle issue
Posted: Mon Feb 24, 2014 2:26 pm
by dmac_25
That's what I thought last time but this time I have the blm low temp maxed out while doing all the setting I take it that's the difference once I burn the memcal. Also is it best practice to put the blm low temp back to 80deg
Re: 808 ECM with 12p on a sc v6 with cam idle issue
Posted: Mon Feb 24, 2014 3:24 pm
by charlay86
Why bump the spark up from 10? The point of having an idle advance less than MBT is so the ECM has a torque reserve that it can use when the revs drop. If you are idling at MBT timing the ECM can only slow the engine down via spark and has to rely on the (slower) iac adjustment to increase engine speed.
Re: 808 ECM with 12p on a sc v6 with cam idle issue
Posted: Mon Feb 24, 2014 3:54 pm
by dmac_25
The engine still idles around 10deg on the gauge setup after I got it smoothed out and not hunting.
Re: 808 ECM with 12p on a sc v6 with cam idle issue
Posted: Tue Mar 11, 2014 6:35 pm
by delcowizzid
opening the injectors for too short of a time makes idle hunt badly too and just off idle surging.i just fixed one car with 42lb greentops setting narrow pulsewidth settings to 1.22ms and 1.44ms slight load lowered idle enough to make the injectors only open some times from a too short pulsewidth
Re: 808 ECM with 12p on a sc v6 with cam idle issue
Posted: Wed Mar 12, 2014 10:59 pm
by The1
getting deadtime right to makes a huge difference