Jump to content

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)

2003 C4S Cranks won't run

Recommended Posts

New to the porsche world and have had nothing but issues with my recently purchased 95k mile C4S. I have read hundreds of threads searching for possibilities. After replacing the broken oil filler tube, I go to start the car and battery is dead. Battery is interstate 2 yrs old and passes load and cranking tests. Charge battery (12.65) and attempt to start the car and it cranks only fires for a second then dies. Checked fuel pump relay and pump is operating. If I give the car gas before it dies it will rev then die. The car has always started before yesterday albeit with codes p0022 and p0349. Also, cleaned MAF and reset TPS prior to yest. And checked charging system.

I have replaced coil packs and plugs. I have the new cam sensor but need to get the car on a lift to change. Checking FP at rail tomorrow. This car is very frustrating. So recap:

Car cranks fires then dies But I can get it to run by pressing gas then dies

Fuel level warning on dash but I had a 1/4 tank before no run issue

No codes currently

Car has died at idle coming to a stop, hesitation @2500-2800rpm , intermittent falls flat not a stumble at 4500rpm, battery discharges in a few days with alarm armed

Thank you in advanced for any help.

Link to comment
Share on other sites

Welcome to Renntech!


Sounds like your car has multiple issues. I looked up P0022, which says the relative position of bank 2 camshaft vs crankshaft is out of spec and P0349 is also related to the bank 2 cam. My suggestion is fill the gas tank with a couple of gallons of gas and retry first (since it's easy). Then use Durametric to check cam deviations. Also may need oscilloscope to check the bank 2 cam signal.


The battery drain is another issue that can be trouble shoot by measuring the current drain when the car is at rest by a dc current clamp.


You will also need a multimeter for basic electrical trouble shooting.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • 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.