Commander 950 TBI to HP TBI Computer!

[67w30]

I had a decent tune on my commander 950 tune and have recently finished my install of my HP computer and unterminated harness. I got the car running and everything seems great but does anyone have pointers on how to use this self tuning/learn part of the computer? Any suggestions would be great!!

[MrForce]

Have you set up your target AFR table?

Rob

[67w30]

I haven't changed it from the base map I used, I believe it says 14.0 across the board. Suggestions? What should I do about the Learn Map? It has boxes I can check to control when it come on and off, also in the learn table its set up to remove or add 100% of fuel, shouldn't this be less? This way its not doing too much at once?
Thanks

[Skip Fix]

So were you using the Commander with the wide band upgrade before?

[67w30]

Yup, had the Wide Band in that setup too, but that table was also at 14.0 across the board.....

[64duece]

Depending on which base map you used, many do have a 14.0 target in the low load sections. You could have used the software to import your old tune aswell.

Typically we shoot for 12.8 to 13.2 Target at WOT

Idle/Cruize target is defined by what your particular engine likes. 14.0 is a good starting point. You can try leaning it out .2 steps and in/out of gear at idle. Go as lean as it will go until the idle quality is comprimised, then back to the previous. Same with cruize, I would pick a particular load/rpm and try a leaner value until you see similar results. Some get down in the 15.0 region, others may not.

100% learn is the amount the ECU is allowed to learn from closed loop correction. You can leave those values until you notice the O2 correction near 0% Then I suggest "tightening" them up abit. The closed loop correction limits will also be addressed after the target a/f's have been defined and the tune is complete.

[Skip Fix]

So why the swap what was the wide band O2 Commander not doing well? A friend has one he is about to finally use and upgrade to the wide band addition for it. Had it on the shelf for 10 years!