# 2003 Volkswagen GTI - Dieseling **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [September 30, 2019, 6:28pm UTC](https://community.cartalk.com/t/2003-volkswagen-gti-dieseling/149788 "2019-09-30T18:28:55Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![jim53](https://avatars.discourse-cdn.com/v4/letter/j/a87d85/32.png) [@jim53](https://community.cartalk.com/u/jim53)\ **Post date:** [September 30, 2019, 6:28pm UTC](https://community.cartalk.com/t/2003-volkswagen-gti-dieseling/149788/1 "2019-09-30T18:28:56Z")
2003 vw gti with vr6 engine, shut off engine for 30 min or more, starts easily, but shut off engine for 5 to 10 min. and it runs for 10 sec. then stalls. restarts easily. happens mostly on hot days, 100 degrees or more. any advice appreciated. ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [October 1, 2019, 2:02am UTC](https://community.cartalk.com/t/2003-volkswagen-gti-dieseling/149788/2 "2019-10-01T02:02:55Z")
That’s a symptom of vapor lock. Have the residual fuel pressure tested. [http://eva2.homeip.net/eva2/FU01/ch5.5.3.html](http://eva2.homeip.net/eva2/FU01/ch5.5.3.html) Tester ---
**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\ **Post date:** [October 1, 2019, 2:30am UTC](https://community.cartalk.com/t/2003-volkswagen-gti-dieseling/149788/3 "2019-10-01T02:30:55Z")
That test should also show if you have a leaking injector, there shouldn’t be any gas around to allow dieseling. ---
**Author:** ![ok4450](https://avatars.discourse-cdn.com/v4/letter/o/e9bcb4/32.png) [@ok4450](https://community.cartalk.com/u/ok4450)\ **Post date:** [October 1, 2019, 3:29am UTC](https://community.cartalk.com/t/2003-volkswagen-gti-dieseling/149788/4 "2019-10-01T03:29:03Z")
The link provided is for a CIS gas system so it does not apply. It does sound like the fuel pressure is bleeding off; possibly an injector or leaking fuel pressure regulator. ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [October 1, 2019, 3:34am UTC](https://community.cartalk.com/t/2003-volkswagen-gti-dieseling/149788/5 "2019-10-01T03:34:20Z")
Another idea, a problem w/the evap system purge valve. It is supposed to be closed during start-up. If it was open it could allow gas from the canister into the engine w/the associated overly-rich symptoms. Usually there would be an evap diagnostic code in computer memory if this was the problem.