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

2 Neutral

About mprowan87

  • Rank
  • Birthday 04/10/1987

Contact Methods

  • Skype

Profile Information

  • Gender
  • Interests
    German cars

Profile Fields

  • From
    Birmingham, AL, US
  • Porsche Club
    PCA (Porsche Club of America)
  • Present cars
    2000 Boxster
    E36 BMW 3 Series
  • Future cars
    911 Turbo S
    BMW M3

Recent Profile Visitors

554 profile views
  1. Parts needed to make a "homemade smoke machine": -Fog machine (the type people use for halloween props) (can be found on eBay for cheap) -Aquarium Air Pump (Walmart or Amazon) -Cooler ($5 bucks at the thrift store) -Vacuum hose (about 13 feet) -2x Metal fittings that will fit into the vacuum hose (needs to be somewhat heat resistant) -1 Gallon of Fog Solution (eBay) -Surge Protector (to plug fog machine and aquarium pump into) I bolted the fog machine to the top of the cooler and ran some vacuum hose from the output of the fog machine to a fitting that I drilled and pushed into
  2. The fuel pump did solve the problem. Some of the other symptoms were caused by an intermittent vacuum leak on the lower portion of the oil filler tube (the end that goes into the engine). I tested for the vacuum leak with a homemade smoke machine.
  3. also, it is not uncommon to see multiple owner boxsters. this makes sense from a practicality standpoint. when a baby comes along; boxsters have to go.
  4. I would look at 2000 models and newer. The 97-99 have a 2.5 and different Bosch software than the latter years. Whichever route you go, you will want to perform the IMS replacement. I had never done a clutch replacement until I did mine. It was straightforward. One of the best aspects of owning a boxster is the infinite amount of online resources that cover just about anything that can go wrong. Keep looking! I would also recommend investing 30 bucks and buying a Durametric style USB cable from ebay. They have knock off versions from hong kong. I have one and it works good enough to r
  5. Update:After almost 2 months of downtime, I finally got the car back together last week (had several projects I was working on while it was down).In regards to the fuel system, I removed and tested all lines/rails/regulator, cleaned and rebuilt injectors, replaced fuel filter, replaced all crankcase vacuum lines/intake vacuum lines/sensor orings on block (knock, oil pressure, etc)/intake plenum boots/intake manifold gaskets.The car still runs lean. Through process of elimination, I have narrowed it down to the fuel pump. In correlation with what JFP in PA said, it now sometimes takes a long cr
  6. The "turret" is directly on top but there is also a line with a valve on it that is right next to the sending unit. What does this valve do?Update: I have the entire intake manifold off. I have removed all the lines between the two points I measured flow (filter, long line to bank 2 rail, fuel rails/connecting hose, and short return line under the regulator). The lines seem to all have slight restriction, but I don't think it is abnormal, because I see a couple of restrictor holes built into the fittings. I blew about 80PSI through them and no debris of any type came out. Tomorrow I plan o
  7. So is the regulator open or closed when no vacuum is on it? The engine is supposed to be off when measuring flow, correct? I replaced the regulator with a dealer ordered part last month... The old one had a broken screen on it when I pulled it out... It seems like the car briefly ran a little better, but since performance seems to fluctuate so much, it is hard to tell... Hmmm, Maybe blockage around the area?? I am pretty sure I accounted for all the pieces of the old regulator (orings, screen bits, etc.) But I am about to go check out this area well!!! What function does the valve that
  8. Just to verify... The engine should be off while measuring the flow, correct? I know the pressure regulator is not operating without vacuum...I am in the process of pulling the intake manifold, fuel rails, etc so I can track down this issue.I also have a new fuel pump and filter ordered to be on the safe side of things.Where are the likely places that a blockage might be besides the filter?I am under the impression that the fuel routes from the pump to the filter, then up the drivers side of the engine bay and around the back to Bank 1 (passenger) fuel rail, then across the front of the mot
  9. Update. I tested flow from connection before filter. It put over 1 L in 30 sec!!!!I went back and tested at the return line again and got about 275 ml again!!!Advice? Is there supposed to be loss in flow throughout the system or does this sound like a blockage? Thanks
  10. Less than 300 cm^3 in 30 seconds!!!!Fuel filter seems ok. I removed it and blew through it in direction of flow... I could blow steady through it. There was some restriction - I couldn't blow full force through it... I know this is a rudimentary way of testing it but its my best option at the moment...300 cm is a lot less than the nominal 850!!!! Bad pump? I collected from the return line under car. Thanks
  11. Thanks for the offer! I rented one from O'Reilly's this time, but plan on purchasing the next one, now that I have experience with the necessary valves. 70 miles south eh; I always enjoy hearing from some Porsche folks from Alabama! Thanks for all your help!
  12. Let's start with the fuel pressure. What you are describing (I cannot see the gauge in your video) is not normal. At idle, the car should have a steady pressure reading in the 3.3 +/- 0.2 bar, or 47.9 +/- 2.9 PSIG. You are nowhere near that pressure. A second critical fuel system test for these cars is delivery, or how much fuel volume is the pump putting out. In 30 seconds, your pump should deliver at least 850 cc of fuel. With the pressure you are describing, I’d be will to bet you are nowhere near that either. Something is obstructing the fuel flow. When was the last time the fuel fi
  13. Yes. Replaced the gas cap... Sometimes after it has been running poorly, There will be a long slow vacuum hiss when removing the gas cap. It lasts a long time compared to the usual "woosh" the pressurized system will normally make... Forgot to mention that... Thanks for your input!
  14. I have been dealing with fuel system issues now since day one. I purchased my 986 in November 2011. The very first day I heard a howl from the fuel filler area. For 6 months, I would occasionally hear the howl and also get a P0442 CEL for a minor evap leak. I read a bit about it during that time but never came to anything conclusive. It didn't affect performance, but I knew it would be something to be dealt with sooner than later. Turns out it was sooner... The past 7 months now I have been having major fuel system issues. I have researched everything I can think of including Diagnostics
  • 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.