DSC - Page 4

andrewwynn · #1 12-24-2018, 10:58 PM

LT shouldn't change much. Mine has typically been 0.02 to 0.05 Ms since I reset the fuel adaptations

Sent from my iPhone using Tapatalk Pro

EODguy · #2 12-24-2018, 11:08 PM

After 10km the LT shows 23.2 but in real time it's actually from the short term. So I guess it's back to work searching for a new sensor

Sent from my SM-A730F using Tapatalk

80stech · #3 12-24-2018, 11:34 PM

What do you mean "real time?" The short term integrator is always going to try to be near zero(128), If it needs to go too far to correct the mixture it then bumps the long term up or down a step and again try to see if it can keep up. Unless this works differently somehow?

andrewwynn · #4 12-24-2018, 11:45 PM

Quote:

Originally Posted by 80stech

What do you mean "real time?" The short term integrator is always going to try to be near zero, If it needs to go too far to correct the mixture it then bumps the long term up or down a step and again try to see if it can keep up. Unless this works differently somehow?

Realtime or live not just a snapshot. "They" say that the short term trim can be up to 10% before SES kicks in. Mine seem to stick around 3-5% short term and 0.02 to 0.05 ms long term.

andrewwynn · #5 12-24-2018, 11:35 PM

23 a lot something out of whack.

I recently cleaned wife's MAF and a week later she started getting fuel trim errors. I reset her adaptations today and now I the post cat O2 now are behaving properly. If you changed anything in the fuel feedback loop reset your adaptations and see if your fuel trim comes back into alignment

Sent from my iPhone using Tapatalk Pro

EODguy · #6 12-24-2018, 11:45 PM

Yeah but I think it's the crap sensors that I had to get over here as they seem to die quickly with the Saudi fuel or I didn't clear the adaptations like I thought I did.... It's always something that is either a pita to get or it's just the joy of the holiday

Sent from my SM-A730F using Tapatalk

andrewwynn · #7 12-24-2018, 11:49 PM

Check long term trim after clear. The unit will tell you the timing of how long and when to turn the ignition off then back on to store the cleared value but doesn't actually do it. You have to count to twenty with the key off then turn it back on. If you're successful the long term trim will be 0.0 for the first good while of the next drive cycle.

I just did wife's today. Mine over a week ago and it's not given me a problem since

EODguy · #8 12-24-2018, 11:51 PM

Thanks I'll give it a try after work today.

Merry Christmas back in the land of the big PX.

Sent from my SM-A730F using Tapatalk

trentcdrums · #9 12-25-2018, 11:50 AM

Mine failed. Go to the yard and pull the exact year make and model and make sure the part numbers match. All you need to do is align the steering wheel calibration and you're set.

Sent from my Pixel 2 XL using Tapatalk

EODguy · #10 12-25-2018, 12:15 PM

Oh I would if I could, but over here it's so hit or miss on used parts that it's not funny...

I'm on the search now, but I may have to go to Dubai, Kuwait or Abu Dhabi if I can't get it here or even God forbid the stealership.

Sent from my SM-A730F using Tapatalk