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Secondary Air Pump

kedf1

By kedf1
in 986 Series (Boxster, Boxster S)

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kedf1 Member

kedf1

Posted
Posted

Ok, I have a secondary air injection problem. (don't have the codes on me right now)

i've read a few articles here on the pump et al.

this last weekend i opened up the engine compartment and started the car (cold) to check for noise coming from pump.

no noise. no movement.

any ideas on where to start? Fuse? Ground? Relay? Sensor? etc...

kedf1 Member

kedf1

Posted
  • Author
Posted
You need to look at the fault codes - they will save you a lot of diagnostic time.

I'll post them when i get home :(

kedf1 Member

kedf1

Posted
  • Author
Posted

error codes...

P0410 - Secondary Air Injection System - Signal Implausible (Cylinders 1 - 3)

P1411 - Secondary Air Injection System - Signal Implausible (Cylinders 4 - 6)

  • Admin
Loren Member

Loren

Posted
  • Admin
Posted

Potential causes:

Secondary air injection pump does not work.

- Wiring harness or fuse

- Relay

- DME control module

Air supply lines restricted.

Electric change-over valve does not work.

Air change-over valve does not work.

- Air supply lines

- Secondary air injection pump

- Electric change-over valve

- Air change-over valve

Look for these

Vacuum system leaks

kedf1 Member

kedf1

Posted
  • Author
Posted

OK,

Fuse for seconday air pump broken (i say broken because it did not appear to be blown)

we'll see what happens in the morning when i start the car cold and drive to work.

kedf1 Member

kedf1

Posted
  • Author
Posted

Put the car through emissions yesterday, passed!

driving around after the party last night... start the car cold, pump cycles on and off, 15 seconds later, i get this code

P0410 Secondary Air Injection System - Signal Implausible (Cylinders 1 - 3)

the fuse is ok, pump turns on ok.

my97 with a my99 engine.

any ideas on where to start?

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