Now the next step is to figure outwhere to tap into the sensor inputs and install some "trim pots" to help fine tune some of the out of whack parameters and dial up the optimum running parameters regardless of what the input is calling for!

 

The other guide has the electrical values and or voltage ranges for many sensors. But as you trim one it may adapt the envelope in another direction. Nailing jelly to a tree.

 

Guess that was dumb idea...........

 

Not so, if you select the right values and push the adaptive envelope toward low power high mpg... but you are fighting a program that wants to maintain a certain air fuel mix at all times, allow the O2s to control that, plus test them from time to time, plus adapt each cylinder spark timing on a unique basis, and control pulse width for each injector for every squirt of fuel, monitor lots of other things, while soccer mom speeds toward pedicure appointment.

There are companies that sell modified chips, normally pushed toward more power. One resistor most likely will not be enough (might have to do several). The system is built to adapt for variations in parts, even wear of the throttle stop.

See attached for more ideas.

 

I saw something recently on Horsepower TV regarding new O2 sensors that give a varaible output that will continue to fine tune the mixture. I did not initially know anything regarding this system and was unaware that they are either a low or high state and I guess are constantly awitching back and forth.

Apparently mine was originally signaling a lean condition existed and the ECU waqs constantly in a rich mode trying to correct an erroneous lean condition.

I wish I had dug in deeper initially but I did not. Live and learn, even when you as old as me. I sure would love to get the HPTV guys working on updating a Discovery One since it is an old Buick Motor anyway.

 

Awesome! Love the digital version of the manual so much easier to find what you are looking for. Thanks Savannah

-Ben

 

Oh Cool....more information worth downloading,

Thank you sir, reference information is always welcome.

;-)