Conical intakes BEWARE! TTP tunes a 2009 Ralliart with fueling problems from intake!
Jul 27, 2009, 01:34 PM
#61
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Yeah but when I got tuned they maxed out the fuel maps. I'm not sure how it all works, but I figured that would mean I would run rich.
Last edited by xdemoulasx; Jul 27, 2009 at 01:36 PM.
Jul 27, 2009, 05:30 PM
#63
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your O2 sensor only does what its called, its a sensor, it wont compensate for fuel.....
Last edited by JaxRRevoX; Jul 27, 2009 at 05:32 PM.
Jul 27, 2009, 05:43 PM
#64
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ok i havent been keeping up with this thread or any for a long time but, to my understanding, this issue is with the UR intake right? i had my car tuned by TTP and i wasnt told about this problem...why would he have this issue with that RA and not with mine??
Jul 28, 2009, 02:51 PM
#74
I tuned an Evo X with an Injen intake and logged the LTFT-cruise for 45 minutes and they maxxed out at +6%. Then I adjusted the latencies down and tuned the boost. As I tuned the boost with multiple WOT runs, the trims fell to 0.19% and stayed there. I saw the AFR getting slightly leaner as the LTFT fell. THEN I adjusted the AFR slightly. I did not have to lean out the fuel map much to get the consistent and steady WOT AFR of 11.5:1 and tapering to 11:1 by redline.
If you are not adjusting the latencies to have a rock solid LTFT, then the AFR at WOT is going to change whenever the LTFT changes.
BTW, the AEM intake makes the LTFT on an Evo X even more positive at +10.9-11.9%.
On the Evo X making the LTFT-cruise rock solid is a must for getting a steady, consistent and repetitive AFR at WOT.
Last edited by nj1266; Jul 28, 2009 at 02:55 PM.