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Secondary air pump keep running

Tiny
COLIN81
  • MEMBER
  • 2002 MERCEDES BENZ A160
  • 101,250 MILES
After I started my car in the mornings the secondary air pump use to go on for a min or so but now it keep on running until my batt goes flat can I just diconect it and what is it function will it harm my car
Saturday, May 4th, 2013 AT 10:53 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
It has a function and it add oxygen to the exhaust when cold for burning rich fuel in the exhaust.

The control for it whether the relay or the pcm is keeping it on and needs to be checked for the failed part.

Do not disconnect it.

Roy
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Sunday, May 5th, 2013 AT 9:47 AM

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