Thread: Engine light on-p0410 secondary air injection system
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Old Aug 25, 2013 | 08:06 PM
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onehundred80
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From: Ontario
Default Re: Engine light on-p0410 secondary air injection system
Originally Posted by philosophico
Seeing as how I just went through this, ill advise what mine was.

My symptoms were the pump would stay ON, unless unplugged. It burnt out one and I had to get another one sadly. My problem was the air pump relay armature was stuck and had burned some.

I had to buy some emery paper (got a few sheets from autozone) and some contact spray(radio shack) to fix my issue. I took the armature out and sanded it with the emery paper and sanded the relay all the burnt areas then I cleaned it up with contact spray and so far it has been fine.

Now your car might not being doing what mine was but ive laid out a possible problem and solution for you.
It is my understanding that a bad contact somewhere or from being just plain sticky causes excessive sparking on the contacts in relays and the only solution is to repair the problem and get back a near mirror finish on the contact faces. A coarse finish and/or a flat surface on the contacts encourages multiple sparking when closing and will cause burning faster than ever.
Points are actually burnished to get a fine surface finish, they are not nice and shiny for nothing, if it were so they would not bother to finish them so well. I would look into replacing that relay ASAP.

I stand to be corrected by members who know about this stuff as I know little or nothing about it.

Sparkie? Pizzaguy?
 
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