Check engine light

willywi · 04-26-2020, 07:59 PM

0

TheCoolX3 · 04-26-2020, 08:21 PM

I would check for leaks. Soapy water on you charge pipes/intercooler/intake manifold and some revs in sport mode should get boost high enough to cause bubbles where there is a leak.

If the MAP or MAF failed the car would be significantly more unhappy and throw more codes. It won't run right if the sensor is total fubar. Perhaps it's gotten covered in oil due to blow-by and is misreading. Pull it out and clean or just replace it while you're there.

Any other shadow codes that ISTA is showing? I am sure if you're competent enough to use ISTA you'll know that there can be codes that won't throw a CEL. Anything?

Bowtiefanatc · 04-29-2020, 10:44 AM

I used to get that CEL when I had the DinanTronics Sport Tuner on my car. Pulled it off and no CEL.

Hope you figure it out!

Metals · 12-26-2020, 01:21 PM

Quote:

Originally Posted by willywi

After replacing all intake seals and throttle body seal the intake pressure is much higher when engine is off, I'm going to buy a new sensor see if it will trigger CEL again.

Hi,
At the end what have you done to fix the problem? I have the same issue.

Thanks in advance.

willywi · 12-26-2020, 08:14 PM

Quote:

Originally Posted by Metals

Hi,
At the end what have you done to fix the problem? I have the same issue.

Thanks in advance.

Replaced MAP sensor and increase idle rpm by 100 in ISTA fixed the issue.

04-26-2020, 07:59 PM	#1
willywi Second Lieutenant 86 Rep 232 Posts Drives: BMW x3, BMW x5 Join Date: Jul 2018 Location: NY iTrader: (0)	0 Last edited by willywi; 04-09-2021 at 01:37 PM..
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04-26-2020, 08:21 PM	#2
TheCoolX3 Lieutenant 174 Rep 540 Posts Drives: 2016 BMW X3 35i M-Sport Join Date: Feb 2018 Location: FL iTrader: (0) Garage List 2014 Porsche Cayenn ... [0.00] 2019 Tesla Model X [0.00] 2016 BMW X3 [0.00]	I would check for leaks. Soapy water on you charge pipes/intercooler/intake manifold and some revs in sport mode should get boost high enough to cause bubbles where there is a leak. If the MAP or MAF failed the car would be significantly more unhappy and throw more codes. It won't run right if the sensor is total fubar. Perhaps it's gotten covered in oil due to blow-by and is misreading. Pull it out and clean or just replace it while you're there. Any other shadow codes that ISTA is showing? I am sure if you're competent enough to use ISTA you'll know that there can be codes that won't throw a CEL. Anything? __________________ 2016 X3 35i \|M-Sport\|Megan Racing Coilovers\|FBO+\|BM3\|Jordan Tuned\|Valvetronic Designs\| 1998 750iL V12\|2017 440i\|2019 991.2 GT3RS Weissach\|2019 Model X\|...and some others Instagram @TheCoolX3
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04-29-2020, 10:44 AM	#3
Bowtiefanatc Private 12 Rep 65 Posts Drives: BMW X3 Join Date: Nov 2019 Location: Colorado iTrader: (0)	I used to get that CEL when I had the DinanTronics Sport Tuner on my car. Pulled it off and no CEL. Hope you figure it out!
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