last year I was using SCT no problems everything went ready in 66 miles same high flow exhaust, this year I can't get the monitors to set I've tried everything, I drove 100 miles they didn't set, I changed some stuff and drove 100 more miles they didn't set, I changed more stuff drove again still haven't set, everything else has except hrt O2S, Evap, all others are good, please look at my file.
oct 22 14.hpt
Last edited by 1998purplez28; 10-24-2014 at 03:18 AM.
What are your mods?
I had this issue and found out that the 13/14 coyote was unable to "trick" the computer but you could possibly do so on the 11/12's.
From what I undertand, if the tune is sound, your evap will ready if you have 3/4 tank of fuel, do a cold start (car sat for 6+ hours) and immediately drive the car at a constant rate of speed higher than 30 MPH for up to 10 minutes. The evap can only ready within the first 10 minutes of vehicle operation and the prerequisits must be met in order to do so.
Total Masshole.
2013 F150 FX4 Supercrew Ecoboost - STOCK
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2009 Cobalt SS/TC Black Sedan
227whp/224wtq Stock. Dejon CP, K&N SRI, Forge BPV, Catless, BadMab Catless DP, MPx 3" Catback, HPT Tuned 328whp/425wtq. SOLD
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I'm guessing it's because I have ltft disabled, I'm thinking that the o2s and o2h is for the front oxygen sensors and since the longer term fuel trim function is toggled off it's preventing them from readying. Anyone know anything about this.
Definitely enable LTFT. I have found the monitors do not like to go ready if it is off.
Eric Brooks
HP Tuners, LLC
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