Battling AE again.

For discussing MicroSquirt (TM) configuration and tuning of fuel parameters (including idle valves, etc.).
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mops
Experienced Squirter
Posts: 217
Joined: Sun Sep 25, 2005 4:13 pm
Location: Auckland, NZ
Contact:

Post by mops »

120 mapdot noise at wot ? um... i'm not sure i'll have to investigate. I cant do wot datalog atm, cos of the screwup in the beta wheel decoder code, i go through soe old datalogs of mine...
BMW, 1985, E30, 325i, 2-door, 5spd , 127k miles, short shift, MSII, V3/code 2.684/60-2 wheel/MT 2.25, LC-1 wbO2, ignitor module mod driving msd coil/, 3 pin Bosch PWC IAC mod
bluetrepidation
Experienced Squirter
Posts: 197
Joined: Sun Nov 13, 2005 8:24 pm
Location: Youngstown Ohio

Post by bluetrepidation »

Here are some datalogs.

First two startups when the engine is kinda warm and warmed. Fuel seemed to not get as high as some events but still sputtered some afterstart.

http://70.226.38.10/~admin/MS/NewLogs/d ... miwarm.xls
http://70.226.38.10/~admin/MS/NewLogs/d ... warmed.xls

Here are a drive to and from to get gas. My AE is better than it was....


http://70.226.38.10/~admin/MS/NewLogs/d ... 281938.xls
http://70.226.38.10/~admin/MS/NewLogs/d ... 281943.xls

And my latest tune.

http://70.226.38.10/~admin/MS/NewLogs/m ... 272213.msq

A.J.
1999 Saturn SC2 1.9L DOHC 4 cyl NA
MS II Blue Processor w/ 2.684 Beta Code
V3 PCB
MegaTune 2.25
Innovate LC1 WB O2 Sensor
OBD I Saturn Wasted Spark DIS
w/ Cooling Fan and IAC
bluetrepidation
Experienced Squirter
Posts: 197
Joined: Sun Nov 13, 2005 8:24 pm
Location: Youngstown Ohio

Post by bluetrepidation »

Wow I just saw my MAPdot was 764 max and -486 min. That could explain the high 135 threshold..... or something is just wrong with my MSII? I did reroute my vacuum line to the same spot the stock sensor sat so it is seeing what the stock sensor was seeing....

Yeah maybe I should change my highest MAP accel bin to 800 to cover the top end? Oh man..... I dunno....

A.J.
1999 Saturn SC2 1.9L DOHC 4 cyl NA
MS II Blue Processor w/ 2.684 Beta Code
V3 PCB
MegaTune 2.25
Innovate LC1 WB O2 Sensor
OBD I Saturn Wasted Spark DIS
w/ Cooling Fan and IAC
mops
Experienced Squirter
Posts: 217
Joined: Sun Sep 25, 2005 4:13 pm
Location: Auckland, NZ
Contact:

Post by mops »

start looks ok to me. I'd take of 5, maybe 10, maybe 15 from lowest rpm, high load bins. see whether that helps.
BMW, 1985, E30, 325i, 2-door, 5spd , 127k miles, short shift, MSII, V3/code 2.684/60-2 wheel/MT 2.25, LC-1 wbO2, ignitor module mod driving msd coil/, 3 pin Bosch PWC IAC mod
Jedrik
Helpful Squirter
Posts: 78
Joined: Thu Oct 21, 2004 9:07 am
Location: Seattle WA
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Post by Jedrik »

In the end of that last datalog it looks like you are getting too much gas causing a misfire... I think this causes the AFR to read supper high for an instant like you see.
But then thats not a real world way to run an engine... is it?

I could never get MAPdot AE to work so cant add anything in that area...
bluetrepidation
Experienced Squirter
Posts: 197
Joined: Sun Nov 13, 2005 8:24 pm
Location: Youngstown Ohio

Post by bluetrepidation »

OK I'll give it a shot tomorrow.

A.J.
1999 Saturn SC2 1.9L DOHC 4 cyl NA
MS II Blue Processor w/ 2.684 Beta Code
V3 PCB
MegaTune 2.25
Innovate LC1 WB O2 Sensor
OBD I Saturn Wasted Spark DIS
w/ Cooling Fan and IAC
bluetrepidation
Experienced Squirter
Posts: 197
Joined: Sun Nov 13, 2005 8:24 pm
Location: Youngstown Ohio

Post by bluetrepidation »

Start is still a lil funky. I went back to TPS accel after not getting anywhere with MAP accel. I also loaded the beta code becuse I am gutting tired of messing with the same old stuff. :P Time to mess with this for a while. I'll post results later.

A.J.
1999 Saturn SC2 1.9L DOHC 4 cyl NA
MS II Blue Processor w/ 2.684 Beta Code
V3 PCB
MegaTune 2.25
Innovate LC1 WB O2 Sensor
OBD I Saturn Wasted Spark DIS
w/ Cooling Fan and IAC
Lordprimate
Helpful Squirter
Posts: 37
Joined: Mon Oct 03, 2005 6:58 pm
Location: Richmond, VA

Post by Lordprimate »

Results??


Im tuning my AE on my satty now ... any tips...

I have my mapDOT threshold set to 65 use to be 50 but i often got AE enrichment after start up from the sudden vaccume...

i have my TPSdot set at .8 anything less then .5 gets noisy... anything more then 1 seems to give me a bad stumble..

i have it set at 60 percent TPS AE. (30% Map)

all the Xtau stuff is default ... dont know enough to tweek yet...

im just happy my engine is in and running again
MS-II Blue w/ 2.686t11 BETA
V3 PCB
MT 2.25 Final Release
GM DIS
In a 93 Saturn SC2.....

http://www.cardomain.com/ride/741154
bluetrepidation
Experienced Squirter
Posts: 197
Joined: Sun Nov 13, 2005 8:24 pm
Location: Youngstown Ohio

Post by bluetrepidation »

Results are it seems to be my ignition table is so out of whack it is causing many of these issues. Titan was good enough to send me an OB II ignition map which seemed odd to me at first but actually works well. The map has about 13.5 deg adv at idle and 22 deg adv at WOT. I'll be tinkering with this and X-Tau. I you would like my latest tune I can post it.

A.J.
1999 Saturn SC2 1.9L DOHC 4 cyl NA
MS II Blue Processor w/ 2.684 Beta Code
V3 PCB
MegaTune 2.25
Innovate LC1 WB O2 Sensor
OBD I Saturn Wasted Spark DIS
w/ Cooling Fan and IAC
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