Not sure if i'm right here..
Is ist possible to support a secondary air system (air pump which blows air in the exhaust to raise up temp and therefore heat up the cat earlier/ faster => reduce exhaust polution in the test cycle). Question is related to a build of an VW Boxer to get EURO 1 or 2 approval (comparabel with the cal driving cycle) with no problems. No OBD or carbon emission control tank/ valve system is needed for an after market installation (in this case VW Type2/T2 with air or waterboxer) - so only EFI with state of the art ignition and wideband Oxy Sensor and catalytic converter - and the right setup ;).
Regards
Oliver
Secondary air system
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
Re: Secondary air system
You can use spare port i/o to turn on a relay that controls the air pump. If the logic is simple, like turn it on at startup and leave it on for x seconds, then turn it off. But if the logic is much more complicated, then that would require code changes.