Jump to content

The RennTech.org community is Member supported!  Please consider an ANNUAL donation to help keep this site operating.
Click here to Donate

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)


  • Content Count

  • Joined

  • Last visited

Community Reputation

0 Neutral

About McMadCow

  • Rank

Profile Fields

  • From
    San Francisco, CA
  • Porsche Club
    PCA (Porsche Club of America)
  • Present cars
    '99 986 2.5
  • Former cars
    '87 944
  1. Ok, my software isn't Durametric, but it still does pretty extensive data logging. I'll let it run for a couple of days and see what it has to say. I'll report back when I have some good varied data. I'll even try to make it miss out on the road by being a leadfooted nutjob.
  2. Thanks, I'll report back on all of that. I'll be doing this in my driveway in neutral since I don't want to take it to WOT on the road while looking at DME numbers. Is it safe to let it sit there and bang off the limiter while going WOT and letting the info register on my tablet?
  3. Ok, I'll check it and report back, thanks! Also, just to be sure... the misses have never occurred at high revs, just at open throttle. I've had the engine revved pretty high at partial throttle with no issue. The misses have always happened when I stomp the pedal all the way down, before even having a chance to rev high. Are we still talking about the same thing, fuel-flow-wise?
  4. My Bosch Mobile Scan software on my tablet shows the real-time fuel info as the engine is running. Is there something I should be looking for? Should I be noting differences before and after a misfire occurs when I floor the throttle?
  5. Hey, thanks for the fast reply! I don't know if the coil packs have ever been changed, but I'll look through the giant pile of receipts I have from the PO. When we did the job it didn't look as though they were. I also went back the next day to make sure everything was connected properly and remained torqued down. I'm planning on going into the garage today, I'll check and see if any of the coil packs- especially on the passenger side bank- are cracked. I don't have a compression tester in my shop... maybe I need to find one. I changed the fuel filter in April, probably about 6K mil
  6. Hi everyone, I've been reading the RT Forums for a while but now I'm finally registered in order to try and track down an issue I've been having. I've searched for related issues through the forums already, but nothing is showing up which is a match for mine. '99 2.5, 5 Speed, 99K Miles Only upgrades are headers and catback. I've owned the car since March of this year and it's been great so far. I've even taken it to the local PCA Autocross. A couple of weeks ago I was cruising on the freeway when my CEL came on steady, no blink. There was no noise or indication to me that an
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.