Lean Protection Errors?

sohcd16y8 · Post by **sohcd16y8** » Mon Feb 25, 2008 12:25 am

Im using 2.1 r0 right now. This is what happens, I have my lean protection enabled like this (using lean protect 1) Min rpm 4507 Min Throttle 30% Above Load 6.08 psi Maximum afr 1.51V 13.02 AFR Max lean duration 270 msec Now my car is running about 11.5:1 at in boost and right when I hit 6 psi it cuts. I then changed the max afr value to 10.4 and it cuts again (like it should since I would be lean). I then changed the max afr to 15:1 and it cut again. I then left the max afr at 15:1 and changed above load to 10 psi and it cut out rigth when I hit 10. Basically it seems like no matter what I set it always cuts at the above load setting. Am I doing something wrong or is this an error?

Bindegal · Post by **Bindegal** » Mon Feb 25, 2008 3:36 am

Is the wideband connected to D14 ? Maybe it sees a narrowband sensor... Calvin told me it uses the \"O2 input\" and at this point, I assume this means D14 or whatever input you have chosen for the closed loop function. /Allan

sohcd16y8 · Post by **sohcd16y8** » Mon Feb 25, 2008 1:34 pm

I am using D14 with the PLX m300. Do I need closed loop enabled for lean protect to work?

Post by **calvin** » Mon Feb 25, 2008 2:10 pm

sohcd16y8 wrote:I am using D14 with the PLX m300. Do I need closed loop enabled for lean protect to work?

No closeloop.. When i tested it work. Can u send me a log so i can see what's going on? Did you do a proper volt to o2 lookup?

sohcd16y8 · Post by **sohcd16y8** » Mon Feb 25, 2008 3:53 pm

Ill post up a log when Im back home, its on my laptop.

Post by **calvin** » Mon Feb 25, 2008 4:16 pm

thank you.

sohcd16y8 · Post by **sohcd16y8** » Mon Feb 25, 2008 5:03 pm

Here is the log. The first pull is with the lean protection disabled just to make sure that was what was causing it. The second pull was with the lean protect 1 enabled with these settings Min rpm 4507 Min Throttle 30% Above Load 6.08 psi Maximum afr 1.51V 13.02 AFR Max lean duration 270 msec Hope this helps

Post by **calvin** » Tue Feb 26, 2008 10:06 pm

which wideband and is it connected to d14?

sohcd16y8 · Post by **sohcd16y8** » Tue Feb 26, 2008 10:08 pm

PLX m300 connected to D14

Post by **calvin** » Tue Feb 26, 2008 10:09 pm

can u post calibration too

sohcd16y8 · Post by **sohcd16y8** » Tue Feb 26, 2008 10:16 pm

Here you go.

sohcd16y8 · Post by **sohcd16y8** » Wed Feb 27, 2008 11:00 am

Was the log and cal of any help?

Post by **calvin** » Thu Feb 28, 2008 8:07 am

i see something else. Can u confirm that lean protection flag in datagrid goes on when lean protect is on? I don't see it on in the log. Test with idle let leanProtection activate check the lean protect flag/checkbox in data grid while making a log file. Please let me know

Post by **calvin** » Thu Feb 28, 2008 9:55 am

i just did a bench test everything seems fine and i didn't change any code and lean protect flag is goes on... I'm afraid something else happens by you..

sohcd16y8 · Post by **sohcd16y8** » Thu Feb 28, 2008 10:35 am

I will try to test tonight or tom.