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)
luigi007
-
Posts
6 -
Joined
-
Last visited
Content Type
Profiles
Events
Forums
External Paint Colors
Downloads
Tutorials
Links Directory
Collections
Classifieds
Store
Everything posted by luigi007
-
Thanks krjohnson. I hope to find the problem soon and hopefully is not too expensive to Fit it. I am getting really tired troubleshooting this problem. I hope I can fix the car so I can keep it for many years to come.
-
Loren, I really appreciate your input and support. 1. I always use Chevrone 93 octane 2. No low gas problems. The dealer also checked the fuel pressure. They said no problem with that. 3. I do not believe the car has an engine block heater. How can you tell? I am not the original owner. 4. OEM air intake. Can a non-OEM filter cause issues with the secondary air system? Not sure if the filter is OEM or not. Need to confirm. 5. Problem with exhaust system??? Not sure. The exhaust noise sounds like a little sputting. First Porsche I owned, so I do not have a base line to compare my car. Is that sound caused by small misfires? The sound is more noticible at low RPMs. 6. Foreign bodies in intake systemz? Again, not sure how to inspect for that. I know the dealer did a throttle body system clean up before I replaced the throttle body. Dealer did not mentioned anything about finding foreign objects. Regards!
-
I keep getting the following codes: P0300 P0301 P0302 P0303 P0304 P0305 P0306 The car idle is not bad at all and runs great. The codes come back after 3-4 days after the computer has been reset. Also, I always get the codes when the engine is cold.
-
Loren, Thanks for the feedback. What is your opinion in regards to having a bad dual mass flywheel creating all the cylinders to misfire? The car runs great, just a little rough at idle. Also, no noise coming from flywheel.
-
One more thing, have you guys ever heard of crankshaft sensor reteach process? I read in youtube of a guy with a Mustang that he replaced the clutch and flywheel and was getting the random misfire codes after the replacement and all he did to fix the problem was to have the dealer recalibrate the sensor using their dealer computer. Can this be done with the Porsches? My car does not make any noise at the flywheel. I believe the previous owner changed the clutch own my car, that is why I was wondering about this easy and cheap fix. Also, the $4,000 quote includes a new clutch assembly.
-
krjohnson, I have a 2005 997 carrera that I am having very similar issues. I have been fighting this issue for about 6 months now. I get the p0300 code "multicylinder misfires" with all the cylinders misfiring "p0301-p0306". I have replaced the spark plugs, mass air flow sensor, and throttle body assembly. I have taken my car to the dealer twice. The first time they told me that the throttle body was the problem. They quote me around $900 dollars to replace. I decided to buy the complete module from Porsche Sonnen for around $300 and took me about 20 minutes to replace. I still have the problem. This week I took my car again to the dealer for the second time and they told me that they will need to inspect the dual mass flywheel. They think that is the problem. I will need to pay $1900 to drop the transmission to inspect the flywheel. I am getting really tired with the dealer. They are never sure about their diagnostics and cost the customers tons of money. Does envy one here on this forum agrees with the dealer recommendation? The local Independent shop does not agree that the flywheel would be the problem. The dealer is quoting me $4,000 to replace the flywheel, change the RMS, and IMS. Any feedback? Anyone?