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02-27-2011, 08:48 AM | #1 |
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A question about ECU/Chip tuning
Hello people, I just have some questions regarding ecu/chip tuning.
I spent time searching for it, but couldn't get the answer so I thought I should ask people on this forum. If you have some knowledge about this topic, please feel free to chime in. 1. I was wondering if it's possible to get CEL after you get the ecu/chip tuning. 2. If you do get the CEL after the tuning, what's the cause of it? 3. If this issue ever happened to you or someone you know. I see that some people write sarcastic or non-related comments, but save that for your boss....... Also, don't need to write "tuning does not worth the money, don't get tuned, they are not safe, and etc." I'd greatly appreciated if you guys answer the questions. Thanks in advance. |
02-27-2011, 09:56 AM | #2 |
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1) yes it is; a cel can be triggered for a number of reasons other than a simple increased emissions issue. This could also cause it if you have a first stage tune that is meant for stock midpipes and you go catless or hfc and your tune does not account for that. If your tune is meant for catless of HFC you should get no increased emissions warning triggering a cel - however, i dont see why a cel caused for other reasons would not appear as that is plain unsafe for the engine should something else go wrong.
2) You will likely need a handheld tool to tell you if the car doesnt display the error straight up = it could be a host of things. 3) no
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02-27-2011, 10:12 AM | #3 | |
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02-27-2011, 01:07 PM | #4 | |
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Most tunes raise the thresholds to keep a CEL from coming on, even if you are catless. The CEL can still illuminate if something else is causing it. Dave
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02-27-2011, 01:14 PM | #5 | |
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Drives: 2011 E90 M3,1994 Euro E36 M3/4
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Scan the car and see what the code is then go from there. There are lots of things that can turn on a CEL on our cars! |
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02-27-2011, 02:31 PM | #6 |
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I'll see if I can get my hands on a OBD Scan tool to see what type of codes pop up ...
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02-27-2011, 06:30 PM | #7 | |
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01-15-2013, 05:00 PM | #9 |
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Hello, I own a 2008 Bmw M3 E92 US model and had it shipped to Europe. Sometimes when I push the car to its limits in acceleration, I get this 'engine failure, loosing power' then the car looses power and doesn't exceed 120km/hr. Then I have to stop for 10-15min,turn on the engine again and everything goes back to normal. Also sometimes I get this 'high emissions, service engine soon' . When I had it checked by the BMW dealership, they said that most US models have these problems due to the difference in benzine between europe and the US. They also suggested to change the fuel injectors and replace them with the european version. Any clues how to fix this? Thnx
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01-17-2013, 01:00 AM | #10 | |
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