Tune Very Inconsistent
not yet..
i want to see if you hit the same load and same IPW for different pulls (same gear thou)
if you get a different AFR or see different loads then you know something is wrong
i want to see if you hit the same load and same IPW for different pulls (same gear thou)
if you get a different AFR or see different loads then you know something is wrong
So you've scaled the Injector Scaling to a different value than stock, but have the stock MAF Scalings?
Maybe if you tuned your MAF instead of the injectors, it would work better.
Some of your posts seem to point towards having an incorrectly tuned MAF.
What ROM ID do you have?
Maybe if you tuned your MAF instead of the injectors, it would work better.
Some of your posts seem to point towards having an incorrectly tuned MAF.
What ROM ID do you have?
I'm not really sure about the maf scaling....if I did that, then I wouldn't have to do injector scaling right?
My rom id is the newest one is 52680022.
I will do another 3rd gear pull tomorrow tephra.
What would I need to do to tune the maf scaling? That would require scaling the injectors down and then maf up right?
My rom id is the newest one is 52680022.
I will do another 3rd gear pull tomorrow tephra.
What would I need to do to tune the maf scaling? That would require scaling the injectors down and then maf up right?
Update: So I'm still driving around with absolutely ZERO fuel trims. When I first turned the trims off, wot was in the mid 11's. Now after two days, it's in the mid-high 10's.
WTF.
One thing I have noticed is that when I first turn the car on, it idles pretty well at 14.7 or so. But once I go around and drive it for a little bit, the idle never returns to 14.7, it just stays at 13.5 or so. WTF, there's no trims? Why would it idle fine earlier in the same drive cycle, but then all of the sudden decide to not idle okay?
I have not tried the MAF scaling yet, but I guess I will soon. Just gonna have to rescale my injectors and latency which will suck
Anyone have any suggestions?
WTF.
One thing I have noticed is that when I first turn the car on, it idles pretty well at 14.7 or so. But once I go around and drive it for a little bit, the idle never returns to 14.7, it just stays at 13.5 or so. WTF, there's no trims? Why would it idle fine earlier in the same drive cycle, but then all of the sudden decide to not idle okay?
I have not tried the MAF scaling yet, but I guess I will soon. Just gonna have to rescale my injectors and latency which will suck

Anyone have any suggestions?
Yeah the STFT is always 0. So now I know it's not the trims, I just wanted to eliminate that from the possible causes list.
Oh yeah, today it went back to mid 11's under WOT tonight.....was raining though.
Oh yeah, today it went back to mid 11's under WOT tonight.....was raining though.
well if its ECU related you should see different IPW numbers in the logs for a good pull vs bad pull..
did you have a chance to get 2x back to back 3rd gear pulls (with IPW) that had different AFR's?
did you have a chance to get 2x back to back 3rd gear pulls (with IPW) that had different AFR's?
Wait wait wait, you're telling me this is how this thread ended???
I'm having the exact same problem with my IX!!!
What i noticed is the the higher the boost, the more exaggerated the problem (i.e. the richer the afr's become)
Please see attached for logs over multiple PSI settings. I really need help with this
I'm having the exact same problem with my IX!!!
What i noticed is the the higher the boost, the more exaggerated the problem (i.e. the richer the afr's become)
Please see attached for logs over multiple PSI settings. I really need help with this
Last edited by Carloverx; Jul 16, 2010 at 08:23 AM.



