Steven97i1
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« on: June 17, 2021, 12:59:54 AM »
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Hey guys, i have a little problem
i accidently drove a Wideband ECU on a narrowband car.
the fuel econemy is Great on the Wideband ecu(down to 6-8l easylie)
but the Fuel econmy is AWFULL with the "original" ECU with stock stage 1 tuning or even completly stock ecu.(min. 10l average 12-15)
i only have Decated the car with 3" Downpipe.
Both ecus are Rear o2 off.
Why is that so?
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sda2
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« Reply #1 on: June 17, 2021, 02:41:15 AM »
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Propably someone messed with the LAMFA table and richened part load lambda with it.
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Steven97i1
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« Reply #2 on: June 17, 2021, 03:13:26 AM »
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i dont think so, because the narrowband even when stock ( 3 Files compared all the same) and it always consume 15l
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Blazius
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« Reply #3 on: June 17, 2021, 03:39:27 AM »
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Uh, how do you accidentaly put a wideband ecu on a narrowband car, and expect it to work with o2 correction? I am confused  |
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RBPE
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« Reply #4 on: June 17, 2021, 03:55:17 AM »
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Limp mode fuel economy/driving/gauges all incorrect if injectors/kvb different etc.
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Steven97i1
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« Reply #5 on: June 17, 2021, 04:07:47 AM »
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Uh, how do you accidentaly put a wideband ecu on a narrowband car, and expect it to work with o2 correction? I am confused i had like 10 ecus laying here, Took one put a Ebey stage 1 on it and threw it in my a3 8l 1.8t with 400.000km just that easy^^ |
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Steven97i1
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« Reply #6 on: June 17, 2021, 04:08:34 AM »
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Limp mode fuel economy/driving/gauges all incorrect if injectors/kvb different etc.
yeah but Car runs better with wideband ECU then with narrowband and with wideband it has better fuel econemy |
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RBPE
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« Reply #7 on: June 17, 2021, 04:21:19 AM »
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yeah but Car runs better with wideband ECU then with narrowband
and with wideband it has better fuel econemy
If it's converted properly to wide band, otherwise you're just looking at faux figures and the ecu's adaptations are making it feel safe when that would be questionable. |
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Sandstorm3k
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« Reply #8 on: June 17, 2021, 08:55:09 AM »
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Just pull the files and look at them, will most definitely answer your questions.
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Steven97i1
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« Reply #9 on: June 17, 2021, 04:43:16 PM »
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If it's converted properly to wide band, otherwise you're just looking at faux figures and the ecu's adaptations are making it feel safe when that would be questionable.
Its not conerted! Just thtew ecu it it |
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nyet
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« Reply #10 on: June 17, 2021, 08:35:40 PM »
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Its not conerted! Just thtew ecu it it
Wait, you have the same O2 sensors? |
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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Blazius
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« Reply #11 on: June 18, 2021, 09:20:02 AM »
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Wait, you have the same O2 sensors?
Thats what I was saying lol. How do you put the a wideband ecu on a narrowband ecu/harness and run with lambda sensor ( you dont). if you make the switch to wideband harness(add wires) then you cant go back because connector difference. So why are you surprised by fuel "economy" |
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Steven97i1
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« Reply #12 on: June 18, 2021, 12:29:48 PM »
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I didnt Change anything for the ECU. Just threw ECU in.
2 O2 sensor Narrowband
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