Subject	OEM ecu uses O2 sensor to adjust the long term fuel trim.
Posted by	not4resaleZ on October 05, 2010 at 6:23 PM
	This message has been viewed 237 times.
In Reply To	What fuel trim R U talking about? You have OEM ECU. (n/m) posted by sparkie on October 05, 2010 at 05:36 PM
Message	Once I hit "Clear Self Learn" on my Nissan Data Scan program while it was idling and it started to idle rough. This was with about 10% ethanol. E85 stoich is about 9.7, and E100 is 9.0. I think the fuel trim is at about 10% or less with 25% ethanol.
Follow Ups	Selin and ashspecz ecu? - supersh0cker 05:05:44 10/05/10 umm..I think if the program is tuned for higher octane.. - ForceFedTT (SoCal) 05:52:26 10/05/10 on the right track - FuerGrissa 06:29:15 10/05/10 Cliffs notes: - ttzcadet 10:49:46 10/05/10 If you're going to run 91, then get a 91 tune, but... - ZXoltan 06:01:15 10/05/10 EXACTLY why I run with ~3 gal of 100oct/tank ;-) damn CA! (n/m) - CoHPhasor 02:56:05 10/07/10 Call Specialty Z - Alan(MD/NJ) 06:52:20 10/05/10 Our ECUs will work just fine with the Selin unit. (n/m) - Ash's Z 08:44:24 10/05/10 I'm no ash fanboy, but thats just misinformation - Antihero 09:06:34 10/05/10 Do what (n/m) - John@Z1 11:01:04 10/05/10 ? (n/m) - ZiNnYc 11:13:19 10/05/10 These two products are fully compatible (n/m) - Jim (Selin Design) 12:14:02 10/05/10 Not sure what you might have mis-understood? - Greg D. (Specialty-Z) 12:32:17 10/05/10 Dual True (n/m) - Ashman2k2 12:42:53 10/05/10 Interesting points, Greg. Ash was tuning my car recently - Mr.Stacy 15:31:34 10/05/10 ok... - supersh0cker 16:19:51 10/05/10 If that is what you would like to do. (n/m) - John@Z1 17:28:24 10/05/10 i don't know if I would say best - Adam (NoVA) 18:07:36 10/05/10 Why? (n/m) - njz 20:41:23 10/05/10 if you have the cash --get Nistune -- (n/m) - The Devils Z 07:16:38 10/05/10 If you get the AshSPEC - Jehannum 07:50:02 10/05/10 Selin and JWT/SpecialtyZ/Stillen ecu, the end. (n/m) - Halo TTZ 07:58:49 10/05/10 How much boost? - spicyZ 08:24:15 10/05/10 ANSWER! - ubermiach 08:45:38 10/05/10 Is it better to get the dual program ecu - tuckz32 09:05:57 10/05/10 I was told that optimal would be to have the dual program - HighPsi (NorCal) 09:37:56 10/05/10 Interested to know who told you that. Before the Selin - zgene4 09:45:13 10/05/10 I think it occured in a conversation on our way to lunch - HighPsi (NorCal) 10:05:10 10/05/10 answers. - Antihero 10:07:46 10/05/10 wurd^^^^^^^ - ubermiach 10:35:21 10/05/10 Great answer, thank you antihero - tuckz32 16:24:11 10/05/10 Under 500HP the single pop program will offer a more ideal - Greg D. (Specialty-Z) 17:04:19 10/05/10 lol @ buying power upgrades and wanting cheap gas - Antihero 09:07:44 10/05/10 ... like here, unfortunately - vorpalZ 09:42:57 10/05/10 you know we have 100 down the block, right? - ZiNnYc 10:44:40 10/05/10 lol.. don't tempt me. - Antihero 12:36:44 10/05/10 I blend 1/3 e85 with 2/3 91 to get 96 octane. - not4resaleZ 10:33:41 10/05/10 Note, your car will need about 10% more fuel capacity. (n/m) - not4resaleZ 10:48:35 10/05/10 How long have you been doing this? - bartz32tt 12:45:07 10/05/10 I need to get it on a dyno to insure the fuel trim is - not4resaleZ 16:39:56 10/05/10 Not good. E85's stoich AFR is 6.5:1 - sparkie 13:32:26 10/05/10 Fuel trim adjusts it like a clogged fuel injector. (n/m) - not4resaleZ 16:33:12 10/05/10 What fuel trim R U talking about? You have OEM ECU. (n/m) - sparkie 17:36:11 10/05/10 OEM ecu uses O2 sensor to adjust the long term fuel trim. - not4resaleZ 18:23:45 10/05/10 Ztuner can hook you up as well. (n/m) - ZiNnYc 10:46:31 10/05/10 best set up and tune would be? - supersh0cker 16:20:45 10/05/10 Best would be to have it dyno tuned. (n/m) - John@Z1 17:29:22 10/05/10 contact Ztuner and set up an appt - ZiNnYc 03:38:25 10/06/10 2nded on if you can drive to Harry, do it. (n/m) - Antihero 09:09:31 10/06/10 Anyone recommend a good dynotune shop in toronto? (n/m) - Rogy 23:06:54 10/06/10
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