Subject: Re: tuning questions by djxib on 2013/5/8 15:31:45
Quote:
bam wrote: You run in open loop so that means you never use your 02's right? Was the reason for doing this the supercharger? Or something else? Can you give me a brief idea of how this works? I am thinking that the split BLM's what ever the cause (unless it is vacuum leak, exhaust leak, which I am sure mine is not, I've checked this out really well several times) just makes no sense, there is no hot rodding reason (maybe for fuel mileage or emissions)to have one bank of the engine rich and the other lean all the time. I am thinking of running just one 02 and running it to both banks in the computer and then tune that side with my wide band. That will eliminate split BLM's, any thoughts? A guy with 6 years of working on this stuff, what you have learned is invaluable, thanks for the help.
The fact that it took me 6 years before giving up should tell you I'm not very good at this stuff :-)
Actually the reason I eventually went open loop was because I was struggling to get the idle right after rebuilding the motor and upgrading from an S-trim to a YSi supercharger. I just couldnt get the idle right so I disabled block learn... and in conjunction with a permanently installed wideband things became much easier. (For giggles you can see my car idling here: http://www.youtube.com/watch?v=Zy49rCeDWDA&feature=youtu.be)
I'm not sure I would recommend going with one O2 sensor - but I would like others to chime in here..
