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Deciphering codes thrown during PPI

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Old 02-27-2024, 02:03 AM
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brennislhomme
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Default Deciphering codes thrown during PPI

Hey all, first time / long time. I finally caught the bug and unloaded my BMW & Mercedes to find a 997.1 - really excited to be here.

So, the seller of a 997.1 C4S I'm interested in had a potential buyer do a PPI - it returned back with 11 codes thrown, and they recommended replacing the starter and clutch. Not the greatest sign, not gonna lie, and most likely why the car is still for sale. Myself and my mechanic have had some trouble deciphering what the codes might mean. I've searched but still haven't had luck with many of these.

Could anyone tell me if these are of the "walk away asap" variety?

P0028 - Valve lift control final (Bank 2)
P0010A - Camshaft Position Actuator Circuit (Bank 1)
P002 - not found, but P0002 is Fuel Volume Regulator Control Circuit Range/Performance (?)
8020 - Multi-function steering wheel timeout
8007 - Gateway incorrect coding
8004 - PCM/Radio code (?)
C140 - Communication instrument cluster (display)
C152 - Communication PSM control unit (drive) - Airbag?
C102 - CAN single-wire operation "comfort" (?)
8021 - GPS antenna - open circuit (?)
8042 - Front luggage compartment unlocking (?)

Last edited by brennislhomme; 02-27-2024 at 12:05 PM. Reason: Updated codes
Old 02-27-2024, 03:03 AM
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groovzilla
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Originally Posted by brennislhomme
Hey all, first time / long time. I finally caught the bug and unloaded my BMW & Mercedes to find a 997.1 - really excited to be here.

So, the seller of a 997.1 C4S I'm interested in had a potential buyer do a PPI - it returned back with 11 codes thrown, and they recommended replacing the starter and clutch. Not the greatest sign, not gonna lie, and most likely why the car is still for sale. Myself and my mechanic have had some trouble deciphering what the codes might mean. I've searched but still haven't had luck with many of these.

Could anyone tell me if these are of the "walk away asap" variety?

P0028
P0010A
P002
8020
8007
8004
C140
C152
C102
8021
8042
How was the DME computer readout for over revs (Manual Transmission) and cam deviation numbers?


Old 02-27-2024, 08:55 AM
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Petza914
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Should just be able to Google each of those codes to see what they relate to. If the car was scanned while the engine wasn't running you'll get more codes than when it is. If the car has aftermarket stereo stuff, it will likely throw gateway communication codes even if everything works right.
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Old 02-27-2024, 09:12 AM
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4Driver4
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I always find it interesting when people post a list of codes without taking the time to list the meanings of each code.
I guess it's better to have every person who wants to help Google the codes individually than to have the OP take a few minutes to add a few words on each code?

That said, whenever I see a list like this, I immediately think about the battery. Step one for me would be to install a new battery and drive the car a bit. See if anything comes back.
HTH
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Old 02-27-2024, 12:01 PM
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brennislhomme
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Originally Posted by groovzilla
How was the DME computer readout for over revs (Manual Transmission) and cam deviation numbers?
They didn't seem to do a DME readout or cam deviation numbers in this PPI. I'm half thinking if these codes aren't huge issues, I'll get another PPI with DME and cam deviation too.

Originally Posted by 4Driver4
I always find it interesting when people post a list of codes without taking the time to list the meanings of each code.
I guess it's better to have every person who wants to help Google the codes individually than to have the OP take a few minutes to add a few words on each code?

That said, whenever I see a list like this, I immediately think about the battery. Step one for me would be to install a new battery and drive the car a bit. See if anything comes back.
HTH
No you're right, totally. My initial post was absurd in hindsight, thinking someone might spot a code or two they were familiar with. I just updated my post with what my mechanic and I could find on the internet.

Last edited by brennislhomme; 02-27-2024 at 12:12 PM.
Old 02-27-2024, 12:18 PM
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Originally Posted by brennislhomme
They didn't seem to do a DME readout or cam deviation numbers in this PPI. I'm half thinking if these codes aren't huge issues, I'll get another PPI with DME and cam deviation too.
Did your first PPI include a Borescope inspection of the cylinders?
Old 02-27-2024, 12:23 PM
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These are the 3 of concern that need further investigation before deciding to purchase. The first 2 are related to the Variocam solenoids for the Variocam + intake valve lift & duration functionality.

P0028 - Valve lift control final (Bank 2)
P0010A - Camshaft Position Actuator Circuit (Bank 1)
P002 - not found, but P0002 is Fuel Volume Regulator Control Circuit Range/Performance (?)
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Old 02-27-2024, 01:08 PM
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Originally Posted by ATX_Native
Did your first PPI include a Borescope inspection of the cylinders?
It did yes - all cylinders are stated to be OK.
Old 02-27-2024, 01:32 PM
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Originally Posted by Petza914
These are the 3 of concern that need further investigation before deciding to purchase. The first 2 are related to the Variocam solenoids for the Variocam + intake valve lift & duration functionality.

P0028 - Valve lift control final (Bank 2)
P0010A - Camshaft Position Actuator Circuit (Bank 1)
P002 - not found, but P0002 is Fuel Volume Regulator Control Circuit Range/Performance (?)
Ahh I see! That helps. I guess without further investigation it's going to be tough to know if these are major or minor issues. Is it common to work through thrown codes on PPI?
Old 02-27-2024, 01:43 PM
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2009 C2S 196K miles

From the cheap seats, something to ponder: I would walk away from this car. Unless of course, you are getting a killer deal and expect to put money into it. So... either one of two things... when you get a bunch of codes, either they all are caused by the same upstream issue, or this car was neglected. Normally, items fail in a linear fashion... one occurs, the owner gets it fixed, then another... etc. An owner who lets these things pile up is an owner I don't want to buy from.

Just for completeness, I can examine the codes in my car and I will get a few oddballs such as "comfort" or some "communications" error... these turned out to be nothing, at least for ten or so years never manifested into a problem. But those engine issues... I dunno.

Peace
Bruce in Philly (now Atlanta)

Last edited by Bruce In Philly; 02-27-2024 at 01:45 PM.
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Old 02-27-2024, 01:56 PM
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Originally Posted by brennislhomme
Ahh I see! That helps. I guess without further investigation it's going to be tough to know if these are major or minor issues. Is it common to work through thrown codes on PPI?
Ok take a deep breath----> Lots of fun/excitement when buying a 997 however you must get a proper PPI or you will pay down the road.
Get a proper PPI with DME readout and Bore Scope Inspection at good Indy Porsche Specialist shop not affiliated with the sellers shop..
What year is car?? Manual or PDK?? How many miles??

Last edited by groovzilla; 02-27-2024 at 01:58 PM.
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Old 02-27-2024, 03:45 PM
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Originally Posted by Bruce In Philly
2009 C2S 196K miles

From the cheap seats, something to ponder: I would walk away from this car. Unless of course, you are getting a killer deal and expect to put money into it. So... either one of two things... when you get a bunch of codes, either they all are caused by the same upstream issue, or this car was neglected. Normally, items fail in a linear fashion... one occurs, the owner gets it fixed, then another... etc. An owner who lets these things pile up is an owner I don't want to buy from.

Just for completeness, I can examine the codes in my car and I will get a few oddballs such as "comfort" or some "communications" error... these turned out to be nothing, at least for ten or so years never manifested into a problem. But those engine issues... I dunno.

Peace
Bruce in Philly (now Atlanta)
Thanks Bruce I appreciate that, definitely resonating with what you're saying.

Originally Posted by groovzilla
Ok take a deep breath----> Lots of fun/excitement when buying a 997 however you must get a proper PPI or you will pay down the road.
Get a proper PPI with DME readout and Bore Scope Inspection at good Indy Porsche Specialist shop not affiliated with the sellers shop..
What year is car?? Manual or PDK?? How many miles??
HAHA. Yeah, you nailed it. I got the bug, been kicking the tires of my slow vintage cars for too long. Thanks for that.

It's a 2006 C4S manual with 56k miles, asking price is $54k
Old 02-27-2024, 08:09 PM
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**duplicate post

Last edited by brennislhomme; 02-28-2024 at 03:00 PM. Reason: duplicate post
Old 02-28-2024, 02:02 PM
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groovzilla
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**Make sure your PPI includes photos of each cylinder. COnfirm this prior to Inspection.
Don't accept "Yeah everything looks ok"as a Bore Scope Inspection. Many new buyers have been burned.



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Old 02-28-2024, 11:47 PM
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Originally Posted by brennislhomme
Thanks Bruce I appreciate that, definitely resonating with what you're saying.



HAHA. Yeah, you nailed it. I got the bug, been kicking the tires of my slow vintage cars for too long. Thanks for that.

It's a 2006 C4S manual with 56k miles, asking price is $54k
Can get a base 997.2 with a tad more miles for mid 40's.Not sure if you want the 4wd though.


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