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klatinn klatinn is offline
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Join Date: Mar 2004
Posts: 206
Originally posted by dd74
I want to teach myself the intricacies of a/f ratios as my '83 3.0 engine has been pinging during WOT at full load in very warm weather conditions. Will any of the listed a/f meters in this thread work with CIS?

Most definitely yes. I'm running an LM-1 on my 81 CIS Lambda engine. With the programmable outputs of the LM-1 it's now running closed loop at WOT at 12.8 AFR. I described that trick in another post a while ago. Mine also pinged in hot weather. Turned out it was running a touch lean (13.4) at the max torque point. Running it in closed loop now makes it run a lot smoother and it feels more responsive. Butt dyno says it makes more power throughout the rev band.

Old 10-05-2005, 04:10 PM
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