Lean spot

[Asho88]

Hey guys just after a bit of advice/suggestions I've got my car running pretty well I've been logging and tuning working quite well but I've got just one point in the map that is leaning out on me it's 80 kpa @ 2000rpm which is just as I'm taking off gently and when it's cruising at 80kms - 100kms. It's taken me a bit to pin point so I thought it may be an AE/DE adjustment but kinda rules that out when it does it whilst it's cruising with minimal throttle position changes. It pops out the exhaust very annoying. Cheers

[Charlescrown]

Exhaust poping is usually an indication of lean. I'd work on increasing the VE around that area and see what happens. Maybe post your bin and a log.

[Asho88]

Yeah I can see in the log that it's leaning out just not sure why in the log the average is ok but it's hitting a lean spot. Attached one of my most recent bins and the log from a 1/2 hour trip home cheers.

[Asho88]

So playing around I noticed the calculator wasn't quite right I've had a few issues with it but thought I had it right anyway it's right now so I just took another quick log and I'll try again. Cheers

[delcowizzid]

Pops out the exhaust are normally rich pops .it may be too rich in that spot and will missfire and read lean on a wideband

[Asho88]

Cheers mate been playing with the fuel map it’s getting better. Cheers

[Charlescrown]

I think your program may be corrupted. Looking at the VE table it has quiet a few scattered illogical data. Maybe it's me or my 12P. Hope someone else chimes in. Perhaps copy and paste what the VE shows at your end.

[Asho88]

I'll check that out I was having issues with the wideband converter. Cheers

[antus]

It'll get like that if you only use histograms and feed it straight in. Its better for you to use histogram for an idea what area needs work, but apply the changes by hand to keep it reasonably smooth. You may have a little peak or trough because of the engine hardware properties, but in general it wont have extreme changes. Generally when you identify a bad area, you'll apply a change to the exact cell based on what you have calculated and then smooth it in to the neighboring cells manually. In tunerpro you can use the 3d view (right click or click and mouse to rotate it to get the right view) then you can grab the neighbouring cells dots and visually put them where they need to be. Generally easier than typeing in all the numbers. Just remember to hit save once the data looks right, and have realtime on or hit upload to get the changes to the car.

[Charlescrown]

Just had a quick look at your log and it's running super lean everywhere. Usually if alls well it should be hitting around 800mv and actively switching. Also there is a lot of knock being recorded. My gut feeling is running very lean. Also your wideband graph almost looks fake with such beaut straight lines.