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Porsche 997 C4S Cab DME Over rev Report Question

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Old 10-24-2014, 02:27 PM
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hotcalsun
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Default Porsche 997 C4S Cab DME Over rev Report Question

Considering picking up a 2008 997.1 C4S cab with 42k miles; I've received the Porsche DME over rev report that reads:

Range 1: 1657 1229.5h
Range 2: 138 1229.5h
Range 3: 13 1229.5h
Range 4: 1 245.0h
Range 5: 1 245.0h
Range 6: 1 245.0h

Total hours 1264.8h

I have reviewed quite a few threads on here re: over revs and know that many would walk away from a car with a range 4, 5, or 6 incident. That being said, is it possible the there was just a single ignition in 4, 5, and 6 or is this simply a computer blip / glitch, especially given the hours on the engine since the incident? Would you walk away based on the report?

Everything else looks clean with the car, although not a CPO vehicle. Any help or direction is greatly appreciated on my first purchase.

Last edited by hotcalsun; 10-24-2014 at 03:17 PM.
Old 10-24-2014, 03:25 PM
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JayRace
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I don't see any issues there. Showing a 1 in 4, 5, and 6 isn't that uncommon and is LESS than a single revolution. It also happened a long time ago. I would not worry at all about it.
Old 10-24-2014, 03:41 PM
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jhbrennan
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Originally Posted by hotcalsun
Considering picking up a 2008 997.1 C4S cab with 42k miles; I've received the Porsche DME over rev report that reads:

Range 1: 1657 1229.5h
Range 2: 138 1229.5h
Range 3: 13 1229.5h
Range 4: 1 245.0h
Range 5: 1 245.0h
Range 6: 1 245.0h

Total hours 1264.8h

I have reviewed quite a few threads on here re: over revs and know that many would walk away from a car with a range 4, 5, or 6 incident. That being said, is it possible the there was just a single ignition in 4, 5, and 6 or is this simply a computer blip / glitch, especially given the hours on the engine since the incident? Would you walk away based on the report?

Everything else looks clean with the car, although not a CPO vehicle. Any help or direction is greatly appreciated on my first purchase.
The "1"'s are an anomaly - with 3 ignitions per revolution impossible to get just 1 ignition especially in 3 ranges that have progressively higher rpm thresholds.

Also, I wouldn't be particularly concerned with the other reported over-revs...but that's me - I'm not buying the car.
Old 10-24-2014, 03:58 PM
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hotcalsun
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Originally Posted by jhbrennan
The "1"'s are an anomaly - with 3 ignitions per revolution impossible to get just 1 ignition especially in 3 ranges that have progressively higher rpm thresholds.

Also, I wouldn't be particularly concerned with the other reported over-revs...but that's me - I'm not buying the car.
Thank you JayRace and JH, I really appreciate your perspectives on the report. I walked away from another similar model that had 10k Range 1s; 300 Range 4's and 100 Range's 5. I am not concerned with the Range 1 - Range 3's; seem pretty reasonable and normal based on others I have seen.
Old 10-24-2014, 05:29 PM
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SpeedyD
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I definitely looked at outputs when I was searching for cars... I think these look fine. Barely touched range 3. I would ignore range 1s as being relevant other than perhaps speaking to how quick the owner was with their shifting...
Old 10-24-2014, 06:06 PM
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Bodu
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Nothing you can make of over rev reports
- many engines break without any ranges 4+
- engines with ranges over 4 do not necessarily break
I believe it's just something that Porsche will use to rule out your car for a porsche approved ins.


re: this particular report, 1 is a glitch (as said above)
Old 10-24-2014, 08:29 PM
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SpeedyD
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Originally Posted by Bodu
Nothing you can make of over rev reports
- many engines break without any ranges 4+
- engines with ranges over 4 do not necessarily break
I believe it's just something that Porsche will use to rule out your car for a porsche approved ins.


re: this particular report, 1 is a glitch (as said above)
Many views on this. Some facts are: 1) very high ranges indicate severe stress on motor beyond intended operating parameters 2) porsche generally makes money when they CPO a car... if they wont for this reason then that means they feel risk outweighs return = not good and 3) at least some set of buyers (myself included) would walk from particularly bad reports, meaning the buyer pool is more limited.
Old 10-24-2014, 11:53 PM
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I am very picky. I wouldn't have a problem with this DME.
Old 10-25-2014, 12:53 AM
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sandwedge
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Originally Posted by SpeedyD
Many views on this. Some facts are: 1) very high ranges indicate severe stress on motor beyond intended operating parameters 2) porsche generally makes money when they CPO a car... if they wont for this reason then that means they feel risk outweighs return = not good and 3) at least some set of buyers (myself included) would walk from particularly bad reports, meaning the buyer pool is more limited.
Going by comments on many previous threads on this subject, even this rather benign report will limit the pool of buyers since the impression is that the car was driven "hard".
Old 11-05-2014, 06:13 PM
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hotcalsun
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Hello everyone. Just wanted to say thanks for all the input here. While I was ok with the DME report, the car ended up not being the right one for me. That being said, I did end up with a 2011 CS Cabrio (CPO) that I am extremely happy with with only 369 range 1 and 36 range 2 ignitions.

Looking forward to contributing to conversations in the future.

Originally Posted by sandwedge
Going by comments on many previous threads on this subject, even this rather benign report will limit the pool of buyers since the impression is that the car was driven "hard".
Old 03-31-2015, 08:09 PM
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TedC
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Hi guys, I am looking at a 2003 tt with the following DME printout, what do you guys think of this?

Range 1 65535 177.4h
Range 2 1535 172.4h
nothing after that

operating hours counter 179.6
car has about 5500 miles

Not sure why the range 1 number is so high for a low mileage car.
Old 03-31-2015, 08:21 PM
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LexVan
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Originally Posted by tedchen1973
Hi guys, I am looking at a 2003 tt with the following DME printout, what do you guys think of this? Range 1 65535 177.4h Range 2 1535 172.4h nothing after that operating hours counter 179.6 car has about 5500 miles Not sure why the range 1 number is so high for a low mileage car.
Yeah. +65,000 over revs in range #1 with under 6,000 miles is very-very high. And in the past 2.5 hours.

So the average MPH is right at 30 but the prior owner keep banging off the rev limiter. Strange.

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Old 03-31-2015, 08:24 PM
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LexVan
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Oh wait. That's a 996 not a 997. Only 2 ranges on the 996. So all the range 2's are bad.

Only the 997 has 6 ranges.

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Old 03-31-2015, 08:57 PM
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5CHN3LL
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The range one's are high (that's what, a couple of minutes at redline?)...even when I bounce off the rev limiter, it's only for a moment. After thinking it over, that's a LOT of time bouncing off the rev limiter. Maybe previous owner liked to speed-shift?

I remember reading that any type 2 over-revs was sufficient to disqualify a car from CPO status, so Porsche apparently thinks they're bad.
Old 03-31-2015, 09:04 PM
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TedC
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It's hard to imagine an owner who keeps the miles low will have so many redlines, usually that occurs on high mileage cars not garage queens.


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