Mark,
If you DO NOT have a cat converter then no need to feed anything back to the DME. Without the cat converter it's best to run the DME in Open-Loop mode just like the Euro engines.
Also, for initial data gathering you do NOT want the O2 closed-loop feedback trying to influence the mixture. If you review my data gathering sheet it specifically says you must gather AFR numbers without O2 feedback.
You also do not need recording ability to gather the basic AFR numbers, it can be done by just looking at the gauge quickly or having a passenger look at the gauge while you drive under the conditions for the test case.
Quote:
Originally Posted by Lake Guy
Thanks for the help Dave, I've pulled two spares to the back for the white and brown and then tied them off. I guess when I get the new sensor installed I'll connect the white and see how it goes.
I've read that using these gauges without a data logger is kind of tough to get any real information. Sounds like it's hard to record/remember much while driving. I'll be working with Sal when the car is back on the road in preparation for his injector and DME upgrades. If there are some wiring points to adjust at that time I'll be fine - there's enough wire run.
I have to say, tearing apart the front suspension is more fun than running wires.
Mark.
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