2000 Boxster/ rough idle and these codes

[boxsterg]

Hi everyone, I'm experiencing a rough idle on my boxster. I hooked up the Durametric and I have the following codes:

P code 174

P code 62

P code 65 cyl 3 misfire

P code 63 cyl 1 misfire

P code 64 cyl 2 misfire.


I had a misfire on a single cylinder a year or more ago and it was a hairline crack in a coil-pack. Any ideas what would cause 3 cyl. to miss all at once?

I only replaced the 2 worse coil-packs last time. But its been running great until recently. I replaced the CPS which cured my hot-starting issues. The roughness seems to smooth out with increased rpm's although Its probably just less noticeable.


Any input greatly appreciated.


Thanks,


Garry

[JFP in PA]

Originally Posted by boxsterg

Hi everyone, I'm experiencing a rough idle on my boxster. I hooked up the Durametric and I have the following codes:

P code 174

P code 62

P code 65 cyl 3 misfire

P code 63 cyl 1 misfire

P code 64 cyl 2 misfire.


I had a misfire on a single cylinder a year or more ago and it was a hairline crack in a coil-pack. Any ideas what would cause 3 cyl. to miss all at once?

I only replaced the 2 worse coil-packs last time. But its been running great until recently. I replaced the CPS which cured my hot-starting issues. The roughness seems to smooth out with increased rpm's although Its probably just less noticeable.


Any input greatly appreciated.


Thanks,


Garry

P1341 (Porsche code 174) Camshaft Adjustment, Bank 1 out of range, or Signal Implausible



Possible causes:




- Short to ground

- Actuator faulty

- Open circuit in triggering wire

- Open circuit in B+ supply

- Actuator faulty

[boxsterg]

Will a durametric short test help to identify some of these problems?
Or are there any other tests I can do to help diagnose with durametric?
Is there a toggle test for the acutator?
Thanks,
Garry