Tuning the JB Pro w/Wideband Air/Fuel Gauge

[Firefly]

As I suspected, The Spyder was running way too rich. I have since reloaded the stock map 3 into the jb pro and have done quite a bit of tweaking to the low end. When I ran just the dual exhaust with the factory box and filter it ran just fine in the low end. It seems the minute you install a high flow green filter or a freer flowing air intake, that annoying stumble/burble rears it's ugly head. The gauge has been invaluable in tuning that area. It's amazing to see how screwed up the ecm is in controlling those parameters in the 2500-3500 rpm range. Just wanted to update! According to my readings on the gauge, the ecm does an excellent job compensating for the increased air flow at the higher rpm ranges out of the closed loop area. It also makes me think the intake really isn't moving that much more air.:dontknow:

I had mine leaned back to where my AFR gauge was reading in the 13's -- but the spyder just didn't have the same 'oomph'. Richened things back up and now see the 12's most the time and it runs much better....

Just don't think these like running very lean at all........

Curious to see how Seth is doing with his PC and auto-tune setup.....

 

[vtspyder]

I had mine leaned back to where my AFR gauge was reading in the 13's -- but the spyder just didn't have the same 'oomph'. Richened things back up and now see the 12's most the time and it runs much better....

Just don't think these like running very lean at all........

Curious to see how Seth is doing with his PC and auto-tune setup.....

I totally agree. Mine was way over the top rich. Moving into the mid to low 11's at times. Now I have the cruise areas set in the low 13's (still pulling 36 MPG)and when I hit it it drops to mid to upper 12's and she gets up and "go's". I actually checked to see how far I could push it to the rich side and the Spyder completely died under acceleration.LOL

 

[weaponjr]

Adding Wideband w Data Aquisition

I'm in the process setting up my 09 SM5 with the Yoshimura pipe. W/o any fuel mods yet, I'm popping on decel. I will also install the green filter when I can adjust fuel delivery.

I have the JB Pro and I'm installing a wideband with data aquisition that I borrowed from work. I will have the capability to record 75 minutes. I plan to record, tps, rpm, air temp, and map. I have another channel available but not sure that I'm going to use it. I was hoping to get the bung installed tonight but it's over 100 in my garage at 9pm tonight. It shoud start cooling off by the weekend.

I'm hoping to collect some data on the weekend. Any thoughts you have would be appreciated...

Thanks,

Rich :spyder2::spyder2::spyder2: