[ArtieUK]

On my 2004 307cc, I have the dreaded AntiPollution Fault coming up (P0410).

I was doing some troubleshooting... I dismantled the Secondary Air Pump to expose the motor, trying to check for voltage and running of the pump.

Despite running the car for quite a while, I saw no voltage being applied to the motor or any running.

The motor continuity seems good, and the fuse was good.

So, I have some questions for the gurus:

When should I expect the motor to run?

Is there any way to turn it on manually for testing... pp2000 maybe?

Is there also a solenoid in the circuit to allow airflow from the pump (when it is running) into the exhaust system?

Any suggestions for testing... what I should be looking for?

TIA
Artie

 

[windy1603]

You should have an option to test in planet under engine ecu actuator test.

Pump should only run on cold startup (i think coolant temp below around 15C from memory) to clean up emissions from rich cold start mixture

 

[ArtieUK]

You should have an option to test in planet under engine ecu actuator test.

Pump should only run on cold startup (i think coolant temp below around 15C from memory) to clean up emissions from rich cold start mixture

Thanks for your reply windy

ArtieuK

 

[reliable406]

I agree pump runs only when starting it does not do much and i doubt this is anything directly to do with you antipollution fault.

There is an EGR valve on the back of your head and this can play up the injectors can also flow badly causing anti pollution to be displayed

 

[ArtieUK]

I agree pump runs only when starting it does not do much and i doubt this is anything directly to do with you antipollution fault.

There is an EGR valve on the back of your head and this can play up the injectors can also flow badly causing anti pollution to be displayed

Thanks reliable.... can the EGR valve and injectors be easily tested?

ArtieUK

 

[Dangar]

On my 2004 307cc, I have the dreaded AntiPollution Fault coming up (P0410).

I was doing some troubleshooting... I dismantled the Secondary Air Pump to expose the motor, trying to check for voltage and running of the pump.

Despite running the car for quite a while, I saw no voltage being applied to the motor or any running.

The motor continuity seems good, and the fuse was good.

So, I have some questions for the gurus:

When should I expect the motor to run?

Is there any way to turn it on manually for testing... pp2000 maybe?

Is there also a solenoid in the circuit to allow airflow from the pump (when it is running) into the exhaust system?

Any suggestions for testing... what I should be looking for?

TIA
Artie

Hi Artie.
On PP2000 I found the actuator test in the BSI / supplies menu.

Anyone know how to unplug this connector?

 

[windy1603]

The red clip should pull outwards which "unlocks" the connector so you can pull apart the two halves

Sent from my SM-T830 using Tapatalk

 

[Dangar]

Thanks. I'll give that a go.

 

[Dangar]

Ok, now I have got it apart and stuff gets weird. With the pump disconnected I get 5.5 V on the 1342 wire.
Resistance of the pump itself is less than 1 ohm, to be expected considering it is 30A fuse. The relays in PSF1 look like the were not intended to be replaced. View attachment 95762

 

[Dangar]

So I believe that is relay R3, and fuse F14. I can't see why there would be anything other than 12V or open circuit at the pump connector. When I activate the pump in PP2000, there is no change still the 5.5V, nor can I hear a relay click. I'm thinking this issue will be a tricky one.
I think the next step is to disconnect the 28 pin 'grise' connector on the fuse box and find out if the stray voltage is coming from the harness or the PFI box.

My car is a 2006 407 btw.

 

[madbadandold]

You are in the wrong forum then. This is the 307 one! Transfer/start a new one in that forum is my advice.