Otto's adventures w/2003 S

[Ottomotion]

Thanks...I see from searching this is a fairly common issue.

I think I will try the 2800 rpm rev up start in the morning.

https://www.renntech.org/forums/topic/49155-secondary-air-test-readiness-monitor-incomplete/

Maybe just a couple more cold start cycles is all I need...

the p1341 appears to be from the cam deviations. It has not triggered in quite a while. The cams are showing
Cam 1 -0.75
Cam 2 1.28
and have been for 100+miles. From what I have read these are well within spec. The car is running great.

[thom4782]

Your camshaft deviations are completely normal and did not cause the P1341 code. If anything, the vatiocam on one side failed to advance the timing as the engine spun up through the 2000-5000 rpm range.

The way to examine this issue involves several steps. First, bring the car up to operating temperature and measure the actual camshaft angles. This is another selection on your Durametric.

It's possible you'll see the angle on one side either not jumping up or jumping up slowly compared to the other side as you hit the rpm value that triggers the variocam to expand. When this happens, P1341 results. I believe the below limit means the actual angle was too small when the variocam should have activated. See this thread: https://www.renntech.org/forums/topic/26617-p1341-what-could-this-be/ and how to check.

If so, there are several possible causes. One, the variocam solenoid could be toast or in the process of failing. This is a relatively low cost easy fix. Or this may be the case of the variocam itself. If one side lags and then increases, it's possible this is due to a weak solenoid.

Hope this helps. I saw this same condition in my 01S. Haven't fixed it b/c I also saw internal chain rail debris in the sump and don't have the ability to replace this internal part myself.

[rexcramer]

Here is a copy of the drive cycle instructions I have used to set the car for CA smog checks. I think it came from this forum.

Below we outline the driving pattern you'll need to perform in order to get your Porsche's OBD-II emission monitors to become READY or COMPLETE. Perform the entire drive cycle. Completing only one portion of the drive cycle will not make the particular monitor which you're trying to make READY complete. The entire drive cycle must be performed every time you attempt the set any of the monitors.

Porsche 911 Drive Cycle - OBDII Emission Monitor Reset Procedure

Prior to starting the driving cycle ensure your Porsche's fuel tank is between 1/4 and 3/4 full. Also do not exceed 3,000 rpm or 60 mph during any portion of the drive cycle. Take extra caution when perform the Porsche drive cycle on public roadways. if you think you will be unable to safely perform the drive cycle please seek assistance from an experienced Porsche mechanic or smog check repair center.

A. Start your Porsche 911 and let it idle for approximately 2 1/2 minutes. This will allow the ECU to diagnose oxygen sensor aging; meaning the computer will be monitoring the oxygen sensor warm-up period and reaction to rising exhaust temperatures. During this period the ECU is also testing the Secondary Air Injection system.

B. Begin driving. Accelerate to 20-30 MPH and maintain your speed for 3 1/2 minutes. The ECU will be testing catalytic converter efficiency.

C. Next, accelerate to 40-60 MPH. Once again maintain steady speed, this time for approximately 15 minutes. The EVAP system is now being tested along with adaptation range (2) and the oxygen sensor (switching).

D. Decelerate and come to a complete stop. If equipped with a manual transmission, idle in neutral for 3 minutes. If equipped with an automatic Tiptronic transmission, idle in drive (D) for 3 minutes. Adaptation range (2) is now being tested.

E. Repeat steps B through D. Drive cycle complete.

I followed the instructions provided by the San Diego PCA Tech Advisor and it worked

Drive in 10 minute cycles 1400-2800 Rpm in 5-6 gear as slow as you can drive in light traffic.
If you stop or go out of RPM range the cycle resets the timer.
After 5-6 cycles you will probably have it.
For evap you must have 1/3-2/3 of a tank of fuel.
Start the car cold and let it idle for 10 minutes with lots of accessories on. (lights, A/C or heater)
Do the same at the end of the drive cycle.

It took 3 cycles of slow freeway driving to get it reset
I drove in 6th at around 58 MPH
People were looking at me oddly driving a Porsche so slow!