Subject	our cars absolutely DO have long term fuel trim
Posted by	zromtech on September 29, 2015 at 11:26 AM
	This message has been viewed 473 times.
In Reply To	Some may argue that our cars don't do any long term posted by not4resaleZ on September 28, 2015 at 03:29 PM
Message	It can add/remove up to 10% fuel. In fact, there is an entire 8x8 fuel map just for the long term fuel trim that is dynamically updated by the ECU* while driving. This is part of the 'self-learn' that is saved while the vehicle is off, and can be reset with Consult tools. * - On all of the large injector tunes that I have seen the O2 feedback system doesn't work properly due to certain ECU parameters not being re-adjusted correctly for the bigger injectors. This causes the long-term fuel trim to malfunction under certain operating conditions.
Follow Ups	Has anyone failed emissions using E85? I'm just curious - not4resaleZ 09:15:05 09/25/15 lol, don't believe the hype, how many times are you - LJZTT 09:38:56 09/25/15 Seems like the guy who was advocating diesel cars - not4resaleZ 09:48:23 09/25/15 ... and burning 30% more fuel (n/m) - vorpalZ 09:49:20 09/25/15 It's more like 20% but the fuel is about - not4resaleZ 10:02:13 09/25/15 Re: ... and burning 30% more fuel - Bigwill837 10:30:35 09/25/15 agreed on all counts, but it's more expensive to run - vorpalZ 10:41:24 09/25/15 But that calculation doesn't take into account the - not4resaleZ 10:57:51 09/25/15 30% cheaper in CA on average. (n/m) - ForceFedTT (SoCal) 11:30:39 09/25/15 so run it (n/m) - LJZTT 16:36:03 09/25/15 I do run it. I'm flex fuel. (n/m) - ForceFedTT (SoCal) 19:13:19 09/25/15 the sensible way to mod for power if one is going to take - LJZTT 12:57:18 09/26/15 E85 is $1.49 at some stations here. Premium is $2.15 - dogpile 12:03:06 09/25/15 I take it back. I just paid $2.37 a gallon for premium. - dogpile 14:44:38 09/25/15 F you....gas is double here. (n/m) - Evan(CA) 16:02:44 09/25/15 actually, you are being F'ed (n/m) - LJZTT 16:27:17 09/25/15 No doubt. (n/m) - Evan(CA) 17:22:45 09/25/15 Sorry. You made me laugh though, so also, thanks (n/m) - dogpile 16:53:14 09/25/15 Re: F you....gas is double here. - njz 19:26:44 09/25/15 not at all, this is a non-story but you go ahead and get - LJZTT 16:10:16 09/25/15 Hype for E85 or clean diesel? (n/m) - jmw300zx 11:42:46 09/25/15 standard corporation takedown - LJZTT 16:24:40 09/25/15 They never removed the cheater program. They will - not4resaleZ 16:35:48 09/25/15 lol are you seriously this dense???? - LJZTT 16:38:27 09/25/15 You understand that the program detected when the - not4resaleZ 16:44:28 09/25/15 so you are told.... - LJZTT 16:49:32 09/25/15 I've tried to be polite and inform you of common knowlege. (n/m) - not4resaleZ 16:52:17 09/25/15 lol, useful idiot (n/m) - LJZTT 10:55:18 09/26/15 My fault was to assume that you knew something about - not4resaleZ 11:39:04 09/26/15 Rthe entire premises the whole "controversy" are based on - LJZTT 16:27:03 09/26/15 I appreciate your skepticism but... - OverZealous (CT) 21:13:52 09/26/15 the premise that the game VW "cheated" at serves anyone - LJZTT 18:20:48 09/30/15 We've heard that 40 times as much number quite a bit - BlackholeZ 11:09:40 09/26/15 are you talking about your Z using E85 - not4resaleZ 11:30:24 09/26/15 No, on 91 - BlackholeZ 20:39:31 09/26/15 Thank you! (n/m) - DAYTONAZ 07:44:15 09/26/15 I think you missed where VW admitted they were cheating. - 93DemonCar 11:50:57 09/26/15 it's all political - LJZTT 16:28:24 09/26/15 illuminati! (n/m) - dpjax 16:31:18 09/27/15 ... and the Knights Tippler - vorpalZ 10:20:52 09/28/15 Tippler, damn near killed her. - zgene4 13:02:52 09/28/15 AKA the Inebriati... - vorpalZ 14:18:08 09/28/15 Re: standard corporation takedown - ttz'in (norcal) 18:55:27 09/26/15 Update.. - ttz'in (norcal) 19:03:07 09/26/15 reminds me of the movie "Being There" (n/m) - not4resaleZ 10:22:47 09/27/15 Awesome movie, and yet so many haven't even heard of it. (n/m) - Multi_Read (CA) 12:38:50 09/28/15 Re: lol, don't believe the hype, how many times are you - njz 19:32:05 09/26/15 We've had one customer out of tons fail TX emissions. - dogpile 11:59:57 09/25/15 I was told that it is possible to pass emmisions - ni[X]it 12:34:40 09/25/15 On a Z I have no idea. But it wouldn't surprise me at all. - dogpile 14:49:47 09/25/15 Just because one manufacturer messed up, doesn't make it a - MixManMash 18:57:35 09/25/15 They will be re-testing all the diesel cars to determine - not4resaleZ 11:16:42 09/26/15 right, because VW is just dying to share its competitive - LJZTT 11:29:07 09/26/15 I bet VW V6 TDI probably passes. (n/m) - MixManMash 20:09:51 09/26/15 99.9% of the time it's political interest. (n/m) - MixManMash 20:11:12 09/26/15 I think it is a fraud - ConVerTT 11:14:55 09/27/15 my personal favorite is from a few years back when - LJZTT 18:26:48 09/30/15 These sites may clear up some of your misconceptions: - not4resaleZ 09:28:10 10/01/15 Here is some common sense for you ... - ConVerTT 20:32:48 10/01/15 i passed with my volkswagen (n/m) - The Devils Z 19:00:14 09/25/15 I failed today on 93 after reinstalling stock cats... (n/m) - WhiTTe Z 15:12:52 09/26/15 Do your 6 Ps, and take it in hot - BlackholeZ 20:40:46 09/26/15 Thanks - WhiTTe Z 22:53:56 09/26/15 New gas will definitely help - BlackholeZ 23:41:31 09/26/15 ^^ Agree ^^ - ttz'in (norcal) 10:18:06 09/27/15 Thanks guys. Yeah they had the car sitting for - WhiTTe Z 14:12:48 09/27/15 As BlackholeZ said, the CATs need to be hot. Drive it - ZXRider 08:52:03 09/28/15 So in TX, they don't use rollers. I guess they just test - WhiTTe Z 10:43:46 09/28/15 I see - ZXRider 11:50:52 09/28/15 Good info. - WhiTTe Z 13:23:48 09/28/15 You will lean your tune out some, but you will also - not4resaleZ 14:29:49 09/28/15 Some may argue that our cars don't do any long term - not4resaleZ 15:29:55 09/28/15 our cars absolutely DO have long term fuel trim - zromtech 11:26:01 09/29/15 Here is what I was refering to: - not4resaleZ 12:04:09 09/29/15 That's odd, because places by me won't do inspections - dogpile 19:38:08 09/28/15 Weird. What county are you in? (n/m) - WhiTTe Z 21:00:26 09/29/15 Live in Tarrant. Work in Denton. (n/m) - dogpile 17:37:19 09/30/15 I live in Houston and failed emissions on e85 - Krazyd27(Houston) 13:06:21 10/01/15
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