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Old 05-06-2019, 01:18 PM
pepa pepa is offline
Join Date: Jul 2012
Location: münchen germany
Posts: 7
pepa is on a distinguished road
E83 , N52B30 engine, secondary air pump

my diagnosis Inpa system shows the voltage of the secondary air pump ( air to heat up the catalyzer faster ) to be 10 Volts, whereas it should be around 5 Volts.
where is the secondary air pump located ?
what can the cause be for the faulty voltage ?

Last edited by pepa; 05-06-2019 at 01:28 PM.
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