Jay Jones

Hey guys, I have been lurking around the boards for months gathering information and knowledge before my big purchase. The help you guys have given prospective buyers has been absolutely been fantastic. Now, I'm reaching out for help before my 1st Porsche purchase. I had a PPI conducted today on a 2005 911 S coupe, with 28K miles, that I was ready to pick up this weekend. The DME scan was faxed to me and I have some serious concerns and questions. The car is out of warranty and I'm quite concerned about potential engine issues down the line. There are many different schools of thought regarding DME readings from my understanding, I would really like some input/opinions on the following DME scan:

Number of ignitions at speed> maximum speed, range 1= 47,214
Number of ignitions at speed> maximum speed, range 2= 12,596
Number of ignitions at speed> maximum speed, range 3= 4007
Number of ignitions at speed> maximum speed, range 4= 590
Number of ignitions at speed> maximum speed, range 5= 60
Number of ignitions at speed> maximum speed, range 6= 0

I spoke with the Porsche Tech who actually conducted the PPI, he claimed he wasn't bothered by the readings. He agreed the car had been driven "like a Porsche should be driven," but overall seemed really unconcerned about any long term issues with the engine.

Any help you guys can give would be greatly appreciated!

Sincerely,

Jay Jones

machina

Run dont walk.

MartinJ

Find another car. I understand that ranges 1, 2 & 3 don't cause engine damage but ranges 4, 5 & 6 can cause damage.

steph280

Here is what Scott Slauson (PCA Tech Expert) said about DME:

"Ranges 1-3 are just 200 RPM's apart in a spread for each range just for mainly info on how you are bumping the rev limiter. Ranges 1-3 are common for just winding up to the rev limiter at 7200 , inertia will generate up to range 3 at this time. This will depend on your driving.

Range 4 is 500 rpm and encompasses two different types of engines, ones that red line at 8200 and those that shouldn't. Basically all the 987 and 997 other than the X51 or GT3 that red line at 7200. This range shows a ID on which engine or mod is in the car between the two.

Range 5 is considered the gray or warranty void area for both engines in question and is generally not good as far as Porsche is concerned.

Range 6 Is a void of warranty and encompasses the 10200 rev limit. The 10200 is the point that all the 987 and 997 engines will succumb to valve float. The 10200 has a separate minimum classification in the DME. After this range is tripped it will record ANY rev above it in the max Rev limit. This is read out in the VAL or Vehicle analysis report. Unfortunately most Dealers do not understand it either.

I should also mention that the 996 and 986 had a range 1 and 2 with the same 10200 max."

Edgy01

I have many bumps at the 1 and 2 myself but NOTHING in that upper area. You can also look at the mileage to find out just how often the prior owner has been bumping up against the limiter.

There are so many cars out there without this potential problem that to consider this one is to take an unnecessary risk.