P0410 and P1411

[CJ_Boxster]

Ok, In the past I was getting the P1411 code ONLY. Its was only Intermitent and after I cleared the code from the ECU, it would take about a month to come back. Now I got both P0410 and P1411 which are Secondary Air Injection Cylindars 1-3 and 4-6.

I've heard that the air injection system is under the intake plenum which makes it alittle back breaking and difficult to diagnose the exact culprit in the air injection system. Could someone here give me some steps in pin pointing the cause of these Pcodes so i dont buy parts i dont really need?

Thanks in advance!

[Loren]

Detail:

I. ln menu "Drive links", trigger secondary air injection (AIR) pump.

1. Connect and switch on Porsche System Tester 2.

2. Select DME.

3. Call up "Drive links" menu.

4. Select AIR pump.

5. Activate AIR pump (audible function).

II. Check triggering of AIR pump.

1. Check fuse (Maxi Fuse) of AIR pump (on relay carrier2).

2. Remove relay of AIR pump (on relay carrier 2). Connect voltmeter to pin 3 and ground.

Display: battery voltage

Connect voltmeter to pin 2 (negative) and pin 7 (positive). Start engine (the DME relay must pick up).

Display: battery voltage

If 0 V is indicated, check wire from pin 2 to DME control module, pin 37, for continuity. Push relay back on.

3. Remove connector of AIR pump.

Connect vo Itmeter to pin 1 (positive) and pin 2 (negative). Trigger AIR pump with Porsche System Tester 2.

Display: battery voltage

III. Check electric change-over valve.

1. Remove two-pole connector of change-over valve.

2. Connect voltmeter to pin 1 (positive) and pin 2 (negative).

3. Trigger AIR pump with Porsche System Tester 2.

Display: battery voltage

4. Remove vacuum hose of change-over valve with the engine running. Check whether vacuum is present.

IV. Check air change-over valve and air supply lines.

1. Run engine briefly to produce vacuum.

2. Trigger AIR pump with Porsche System Tester 2.

3. Remove vacuum hose of air change-over valve. If vacuum is present at the air change-over valve, check

air supply from the AIR pump to the change-over valve to the air supply line to the cylinder heads.

Check function of air change-over valve.

[CJ_Boxster]

Detail:

I. ln menu "Drive links", trigger secondary air injection (AIR) pump.

1. Connect and switch on Porsche System Tester 2.

2. Select DME.

3. Call up "Drive links" menu.

4. Select AIR pump.

5. Activate AIR pump (audible function).

II. Check triggering of AIR pump.

1. Check fuse (Maxi Fuse) of AIR pump (on relay carrier2).

2. Remove relay of AIR pump (on relay carrier 2). Connect voltmeter to pin 3 and ground.

Display: battery voltage

Connect voltmeter to pin 2 (negative) and pin 7 (positive). Start engine (the DME relay must pick up).

Display: battery voltage

If 0 V is indicated, check wire from pin 2 to DME control module, pin 37, for continuity. Push relay back on.

3. Remove connector of AIR pump.

Connect vo Itmeter to pin 1 (positive) and pin 2 (negative). Trigger AIR pump with Porsche System Tester 2.

Display: battery voltage

III. Check electric change-over valve.

1. Remove two-pole connector of change-over valve.

2. Connect voltmeter to pin 1 (positive) and pin 2 (negative).

3. Trigger AIR pump with Porsche System Tester 2.

Display: battery voltage

4. Remove vacuum hose of change-over valve with the engine running. Check whether vacuum is present.

IV. Check air change-over valve and air supply lines.

1. Run engine briefly to produce vacuum.

2. Trigger AIR pump with Porsche System Tester 2.

3. Remove vacuum hose of air change-over valve. If vacuum is present at the air change-over valve, check

air supply from the AIR pump to the change-over valve to the air supply line to the cylinder heads.

Check function of air change-over valve.

Thanks Loren, so i assume i wouldnt not be able to preform the 1st test unless i was a dealer or i have a PST2

[Loren]

Unfortunately yes, you need a PST2 or PIWIS from a shop or private owner -- unless you disconnect the connector and hook it up to 12 volts.

[mikefocke]

Hints

One person's experience with similar codes (pictures included).

Mine turned out to be a loose connection in the piping. I first cleaned the MAF as that was obvious and cheap.