i fixed the bogging out..but my stft is still all over the place i cant get it to stay around 1.00
There is SOOOOO much wrong in this i dont know where to start , DO NOT watch your STFT at WOT they have NOTHING to do with what your AF is at WOT ,the computer does NOT use the o2 sensor AT ALL at WOT so any feed back would be incorrect and your STFT are for closed loop and WOT is open loopSpringbuck said:As far as the STFT, with boost, you should be around 1.25 to 1.3 at WOT. At idle or low RPM's when you are not boosting, it should be ok to have STFT of 1, but as soon as you boost your STFT should be richer. Do you have adaptive on or off. What ratio are you running in the base fuel table? you should set it for at or below 12 (0.82) for all TP's where you are in boost. I changed my TP for WOT too 400 and set the base fuel table to 0.82 for all rpm that you will be making boost. Now this will not make the STFT stay at around 12 A/F ratio unless adaptive is turned off, but it should be close when you go WOT. If you keep adaptive on I think you will see close to 14,64 at idle or low rpm and around 12 or less at WOT with a value of 0.82 or less in the base fuel table.
The STFT is used at ANY time the fuel is in closed loop that could be to 5000 or 6000RPM even and will depend on where you have the WOT/open loop trigger set that is why it is important to set your STFT tables so there safe all the way upSpringbuck said:Hello Tom,
My mistake on the STFT as you use the STFT only for idle and maybe up to 3k rpm's, I must have been asleep, but on the base fuel table and A/F ratio, SCT says to set your commanded A/F ratio in the base fuel table and then ajust your MAF function until it is correct. You can do it the other way around as well I suppose, this way just seems to be easier...
leaving adaptive on has improved some peoples tunes and performance on others it does not.