I'm using a Delco AFS74 heated sensor. When I replace I may consider one of these two.Originally Posted by brian617
I have an AEM WBO2, but I think it's a different model. It integrates fine with the 7427; no complaints other than it doesn't match perfect with the NBO2 in some areas, but no reason to believe that's the WB's fault. I know the placement of both can make a big difference too. Your post that you have this disagreement between WB and NB sometimes too helped a bunch. It gave me more confidence that I'm not chasing my tail and I've started to worry less about BLMs being off in some areas.
I've actually made some good progress in a number of areas. Still some fine tuning to do in the lower RPM/higher MAP areas of the off idle table. CL idling doing well - after about 10 seconds it stabilizes at high 14s on WB. Has good "butt dyno" feel in pretty much all areas right now. Until today I was having a lot of problems with acceleration from start. It would always swing way rich (WB pegged at 10) and then sometimes swing way lean. Often the rich swing would cause a noticeable bog, especially when cold. I know the rich swing was wrong AE settings so I searched a number of different threads, including this one, specifically post #34, username = dud. His engine specs sounded similar to mine so I thought I'd just try out his AE settings. Wasn't expecting much, but was pleasantly surprised to find the rich swing and resulting bog is gone. It's still too lean at tip-in (in the 16s as soon as I feel movement, for about 2 seconds) so I know I have to increase something. Should I increase MAP by 10% as a start? Across the board, or just to part of the table?
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