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How can i purposely throw a code?

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Old Apr 13, 2014 | 07:36 PM
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Default How can i purposely throw a code?

I'm doing a project for school and im basically making a OBD scanner more or less. However, i want to intentionally throw a code and make the "service engine soon" light come on and my question is how i can do this and what is the best way? for example if i unplug an o2 sensor and drive a couple miles will this do it? or should i unplug the MAF? or something like that. I know this is an odd question but thanks guys!

P.S. my goal is to throw a code the fastest and least damaging way to my car haha
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Old Apr 13, 2014 | 08:20 PM
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leave off the fuel fill cap and it will pop an evap code
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Old Apr 13, 2014 | 10:08 PM
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unplug maf, it will immediately trip the ses light. No damage to the engine
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Old Apr 13, 2014 | 10:19 PM
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You could also pull a plug wire loose... Wont damage anything unless you drive it like that for a long time.
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Old Apr 14, 2014 | 06:40 AM
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Unplugging Maf would be my choice.
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Old Apr 14, 2014 | 07:15 AM
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unplugging any sensor should do it really
would be interested in your scanner if you have details
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Old Apr 15, 2014 | 07:36 AM
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thanks everyone!

Originally Posted by toplessHO
unplugging any sensor should do it really
would be interested in your scanner if you have details
we are basically making an android app that communicates with a Bluetooth OBD2 reader which will display codes and real time data
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Old Apr 18, 2014 | 04:29 PM
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Unplug the IAT connector with KOEO (key on, engine off).
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