Rough idle + Code P0301after tensioner pad / camshaft work and what is correct " Actual angle for camshaft " spec?

[Los996]

Hello all,
This is a continuing repair to what started as a camshaft deviation out of spec leading to the replacement of the chain tensioner pads / brake pads / chain ramps on my 2000 911 - 996 5-Chain engine. Seen here:

That odyssey has since been resolved but I now have a new issue.

Quick background:
Removed camshafts, readjusted the camshaft chain timing "marker" positions, replaced tensioner pads, reassembled everything per factory specs.
On first start up got very rough idle and bad misfires. At first I thought it may have been my timing was off but went back and visually inspected all and all looked correct (visually). Upon further inspection realized parts guy had given me Bosch 7403 plugs instead of Bosch 7413 (2000 Porsche 911).

Current issue:
Switched out and installed the correct spark plugs and no more continuous misfires / backfires. Did the initial reset (wait 1 min with ignition on / turn ignition off / wait 10 sec) On the first start up it did misfired / back fired once but I assumed that was left over fuel.

Car now runs but very rough and threw 2 codes:
- P0300 : Porsche Fault code 62 - Misfire damaging cat. converter
- P0301 : Porsche fault code Cylinder 1 misfire damaging to cat. converter
Also, took these readings:
Actual angle for camshaft bank 1: -12.53
Actual angle for camshaft bank 2: 3.05

On positive note the main reason for doing all this work was the original problem / issue of tensioner / brake pad wear which was giving me a -10 / -2.92 reading is now:
Camshaft position 1 deviation: 0.00
Camshaft position 2 deviation: 0.00

So the question is now are the Actual angle for camshaft readings within specs and could incorrect timing be attributed to these new issues?

And... Do I have to give the DME time to "relearn"?

Txs all

[Los996]

Update:

Switched coils with #3 and cleared codes. No codes returned and no misfire so that's taken care of but car still runs rough.

Edited September 27, 2016 by Los996

[JFP in PA]

Your actual cam angles are off.  These actual angles should be ~0 with VarioCam off and ~25 with VarioCam on. From these values you know that the VarioCam actuators are fine (as long as you get close to 0 with them off). You have an issue with the relationship of the tab on the cam with the hall sender. Either the cams are missed timed slightly or the tab on the cam is bent/damaged.

 

 

[Los996]

18 hours ago, JFP in PA said:

Your actual cam angles are off.  These actual angles should be ~0 with VarioCam off and ~25 with VarioCam on. From these values you know that the VarioCam actuators are fine (as long as you get close to 0 with them off). You have an issue with the relationship of the tab on the cam with the hall sender. Either the cams are missed timed slightly or the tab on the cam is bent/damaged.

 

Was hoping for your input JFP and confirmation that I need to go back in. Here is the actual Durameteric reading from this AM. On a positive note, this all seems to be stemming from Bank 1 so I'll probably be checking the lifters as well. Solved problem # 1 but seemed to have created a new one.

Will keep you all posted and thanks again for the feedback JFP. Those were the numbers as was looking for.

 

 

[Los996]

Just wanted to thank @JFP in PA again for all his insight and provide a positive close to this thread.

It turns out that after going back to look the issue I did a rookie mistake and swapped ignition wires for cylinder #1 and #2.

Also, the timing was a bit off so I had to go back in and adjust.

 

That being said, the timing was the more difficult of the two to get spot on but eventually I worked around it.

Working with the engine in the car was not as difficult as most people say. The hardest was loosening tensioner for Bank 2 (4-6). that was a mission.