Thoughts on my Over Revs -- Ignitions Range 2

[luvmy911]

Hello:

2003 996 C4S, manual, 52k miles.

Bought the car about a month or so ago. I have suspected it was a tracked car due to the after-market super charger and Bilstein Coil-overs. Most of the issues I was facing on its general running condition are resolved.

I just got my Durametric in the mail. Was sad to see the following info on the Range 2. But, looks like it was quite a while back so any damage was either repaired or non existent - Im guessing.... Anyway - looking for any other opinions.

Number of ignitions range 1 23378 / 1568.2h

Number of ignitions range 2 281 / 1553.8h (*** divided by 3, correct? = 93)

Operating hours counter 1592.8

Data version 0041610046203613

Type ID DME control unit __996US03

Order type 996430

Country code C2

Transmission type 66310135

Transmission number G9631

Interior equipment AH

Also - I see misfires on initial cold start up. Mostly in cylinders 3 and 6. (about 4-5 in each but then none after its warmed up). Any concerns there?

Thanks!

[White987S]

Well, too late now. You own it.:)

The most recent Range 2 over-rev occured about 39 hours ago. Your car's average MPH is 52,000 / 1,592.8 = 32.6.

32.6 ave mph x 39 hours = 1,273 miles ago.

So, my guess, it that this happen "on your watch" during the past couple months of your ownership.

[DBJoe996]

I am very impressed with your analysis White987S! That's very good. To the OP....what's done is done and you can't sweat it. But you need to watch your shift points if you want to get more mileage out of your engine. :renntech:

[luvmy911]

Well, too late now. You own it. :)

The most recent Range 2 over-rev occured about 39 hours ago. Your car's average MPH is 52,000 / 1,592.8 = 32.6.

32.6 ave mph x 39 hours = 1,273 miles ago.

So, my guess, it that this happen "on your watch" during the past couple months of your ownership.

Cool - I appreciate the math. However, I only have about 350 miles on the car so far since I purchased. The car seems to be running ok with smooth power and no major issues - hoping all is going to stay that way!

Thanks!

[Silver_TT]

I wouldn't be overly concerned... as you eluded to the number isn't as high as it initially seems. Not great to have a lot of range 2 ignitions but likely it's fine (ie no damage as a result that was repaired before you got the car). With this version of the DME you really don't have a ton of info on how much or how long the threshold was exceeded -- meaning these might have just been late up-shifts that didn't get caught by the rev limiter in time and a mild violation occurred that barely breached and only lasted a fraction of a second, etc....as opposed to someone accidentally dropping the clutch on a down-shift from 5th to 1st, etc.

Enjoy your car and don't worry.

Edited November 23, 2012 by ferrugia