Open Loop Load #1 & Open Loop Load #2: differences?

[C6ect.ect]

After tapping an indicating LED to the EGR solenoid pin on respective ecu connector I discovered this concerning open/closed loop and EGR activity:

EGR maintains (I think normal) operation while in open loop. Not sure if it works exactly the same but the EGR system is functional in open loop nonetheless.

This was discovered simply by flashing the O/C loop load breach to 30% in the #1 map only. All three other maps stock (i.e., O/C loop 2, O/C loop throttle 1 and 2)

Also, an easy way to kick the car out of the inefficient heatsoaking catalytic O2 closed loop operation altogether is simply by setting the "MIN TEMP FOR CLOSED LOOP" to a temp beyond, hopefully, capable of reaching, (i.e. 200°C).

Another note on spark advance while leaning towards efficiency (15.2 - 15.5 AFR) that is the timing needs to advance 1, perhaps 2° (not sure exactly how much) to offset the slower diluted burn in order to maintain correct position of peak pressure angle. Otherwise any benefits by running leaner will be negated by PPP being too late, if not worse.

[repforenzo]

Thanks for doing the test, but I don't think we are any closer to definitively saying what the true operational responsibility of each map is. I have my EGR disconnected because I have headers opposed to the stock exhaust manifolds. So the EGR is a non-factor for me.

In full disclosure, the reason I need to manipulate these maps is to compensate for the fact that I've added a Super Charger (~10 psi) to a N/A vehicle. I can use the ECUFlash, but my ECU 'reads' only up to 100%.

As brucer said, using the Min Temp for Closed Loop Map does result in a SES (CEL).

[C6ect.ect]

As brucer said, using the Min Temp for Closed Loop Map does result in a SES (CEL).

HA HA! Thanks, perhaps this is the cause of my PO:0300 misfire CEL I've been getting constantly.

I'll have to retweek the open/closed maps then and change the MTCL back.

[repforenzo]

As brucer said, using the Min Temp for Closed Loop Map does result in a SES (CEL).

HA HA! Thanks, perhaps this is the cause of my PO:0300 misfire CEL I've been getting constantly.

I'll have to retweek the open/closed maps then and change the MTCL back.

Ummm, I do recall trying changing the Min. Temp for Closed Loop and I got a code stating as such. I forgot about that and brucer reminded me that it can happen. It shouldn't cause a misfire code (PO300, etc). So you may have something else going on there.

[brucer]

I've been all over the map trying to get consistent afr. Currently have all zeros in all four maps. Even that didn't keep some odd rich swings. So I fiddled with acell enrichment. Dropping it a little where I was seeing issues. That may have had some good effect. Then I saw that I had to lean out the map at hi-way cruise and now it seems to be working.

As it stands now, idle around 16, easy cruise 15.8ish, and Fifth gear cruise 15.5ish. Lift off goes lean right away. As the car gets to 100 load, dropping down to the mid 13s.