What features do you look for in an engine management system?

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Dec 8, 2002 | 02:03 PM

#16

teiva-boy

Registered User

Joined: Nov 2002

Posts: 1,780

From: San Diego

Car Info: Boosted Geo Prizm

an "auto tune" function would be nice, that way I could shoot for stoic at idle or at least a little rich.

Jan 19, 2003 | 03:26 PM

#17

HiGhWaYcHiLd

Guest

Posts: n/a

does SDS work well on 02 wrx ?

Jan 19, 2003 | 05:04 PM

#18

Jaxx

Registered User

Joined: Nov 2002

Posts: 162

From: Boise Idaho, USA

Car Info: 08 FS/07 FXT/93 GC8 blue/black/black

decent resolution (greater than 8x8)
ability to use any sensors (gm, stock, whatever)
integrated wide band
High or low impediance injectors

Jan 22, 2003 | 04:19 PM

#19

i-speed

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Posts: n/a

High or Low impedance is just a resistor for each injector. That is all the Tec and many other units have in it to allow for low impedance injectors.

The resistors by the way cost about $5 total, then just connect them into the line and you are all set. So putting them into a Engine Management unit should be pretty simple. On to use them and off to not use them.

Jan 22, 2003 | 09:08 PM

#20

JoeT

Registered User

Joined: Nov 2002

Posts: 13

From: Toronto, Canada

Car Info: AFI Subaru Legacy GT-T

I chose Autronic for my engine management because I hate re-tuning for different weather, and different altitudes when driving.

Check out this link, pay particular attention to the "Fuel correction and timing correction factors". The more factors, the better the ECU adapts to changes, but the trade-off is, it's slightly more complicated.

http://www.emergent.com.au/200sx/ecudata.html

Hope this helps.

Jan 23, 2003 | 05:00 AM

#21

N/A

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Posts: n/a

Being able to quickly and easily switch between different maps depending on the weather. For instance one map for the winter time when the air is nice and cold. Then a second map for the hot humid summers.

The price is also a big concern.

Being able to get quick support if something goes wrong with the unit.

a wideband O2 connection

ability to read EGTs also

datalogging lots of it

quick default setting for if I screw up the maps and want to quickly go back to the orignal settings to start over