# Audi fuse pulled now car won't start

**URL:** <https://community.cartalk.com/t/audi-fuse-pulled-now-car-wont-start/184244>\
**Category:** Maintenance/Repairs\
**Tags:** audi, a3\
**Created:** [May 20, 2022, 8:19pm UTC](https://community.cartalk.com/t/audi-fuse-pulled-now-car-wont-start/184244 "2022-05-20T20:19:24Z")\
**Posts on this page:** 10\
**Page:** 1

<div class="post-metadata">

**Author:** ![Syko](https://avatars.discourse-cdn.com/v4/letter/s/67e7ee/32.png) [@Syko](https://community.cartalk.com/u/Syko)\
**Post date:** [May 20, 2022, 8:19pm UTC](https://community.cartalk.com/t/audi-fuse-pulled-now-car-wont-start/184244/1 "2022-05-20T20:19:24Z")

</div>

(Audi a3 2007 1.6fsi) I pulled out and in fuse f15 in the hood (glow time control device, lambda probes) and now the car does not start. The starter motor rotates but does not start. It can start for 1 second after a while then dies.

---

<div class="post-metadata">

**Author:** ![Syko](https://avatars.discourse-cdn.com/v4/letter/s/67e7ee/32.png) [@Syko](https://community.cartalk.com/u/Syko)\
**Post date:** [May 20, 2022, 8:21pm UTC](https://community.cartalk.com/t/audi-fuse-pulled-now-car-wont-start/184244/2 "2022-05-20T20:21:10Z")

</div>

and the fuse has not blown

---

<div class="post-metadata">

**Author:** ![old\_mopar\_guy](https://avatars.discourse-cdn.com/v4/letter/o/6bbea6/32.png) [@old\_mopar\_guy](https://community.cartalk.com/u/old_mopar_guy)\
**Post date:** [May 20, 2022, 8:36pm UTC](https://community.cartalk.com/t/audi-fuse-pulled-now-car-wont-start/184244/3 "2022-05-20T20:36:39Z")

</div>

What led you to touch that fuse?

---

<div class="post-metadata">

**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:** [May 20, 2022, 8:37pm UTC](https://community.cartalk.com/t/audi-fuse-pulled-now-car-wont-start/184244/4 "2022-05-20T20:37:54Z")

</div>

I’d put in a new fuse, just to be sure.

---

<div class="post-metadata">

**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:** [May 20, 2022, 9:10pm UTC](https://community.cartalk.com/t/audi-fuse-pulled-now-car-wont-start/184244/5 "2022-05-20T21:10:56Z")

</div>

> [@Syko](#):
>
> glow time control device

Is this a diesel engine? If so it won’t cold-start reliably without the glow plug circuit working. Doubt the cranks ok but won’t start is related to the lambda circuit. But that not working will turn on the CEL light once the car gets running.

---

<div class="post-metadata">

**Author:** ![Syko](https://avatars.discourse-cdn.com/v4/letter/s/67e7ee/32.png) [@Syko](https://community.cartalk.com/u/Syko)\
**Post date:** [May 20, 2022, 10:23pm UTC](https://community.cartalk.com/t/audi-fuse-pulled-now-car-wont-start/184244/6 "2022-05-20T22:23:34Z")

</div>

Its a petrol engine thanks

---

<div class="post-metadata">

**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [May 20, 2022, 10:29pm UTC](https://community.cartalk.com/t/audi-fuse-pulled-now-car-wont-start/184244/7 "2022-05-20T22:29:31Z")

</div>

Your petrol engine has a _Glow Plug Control Device_?

🤔

---

<div class="post-metadata">

**Author:** ![old\_mopar\_guy](https://avatars.discourse-cdn.com/v4/letter/o/6bbea6/32.png) [@old\_mopar\_guy](https://community.cartalk.com/u/old_mopar_guy)\
**Post date:** [May 20, 2022, 10:43pm UTC](https://community.cartalk.com/t/audi-fuse-pulled-now-car-wont-start/184244/8 "2022-05-20T22:43:28Z")

</div>

That circuit is for the glow plugs in diesel cars, and the oxygen sensor heaters in gasoline cars.

---

<div class="post-metadata">

**Author:** ![weekend-warrior](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/weekend-warrior/32/26122_2.png) [@weekend-warrior](https://community.cartalk.com/u/weekend-warrior)\
**Post date:** [May 20, 2022, 10:50pm UTC](https://community.cartalk.com/t/audi-fuse-pulled-now-car-wont-start/184244/9 "2022-05-20T22:50:11Z")

</div>

> [@Syko](#):
>
> and the fuse has not blown

you may have a bad relay. check the Glow plug control relay

---

<div class="post-metadata">

**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:** [May 21, 2022, 11:18pm UTC](https://community.cartalk.com/t/audi-fuse-pulled-now-car-wont-start/184244/10 "2022-05-21T23:18:26Z")

</div>

I have to say it is pretty confusing of Audi to name an electrical circuit “glow plug” when its a gasoline engine, & there’s no glow plugs … lol … as far as OP’s problem, cranks but won’t start is usually either a fuel problem or a spark problem. First step, ask your shop to check for a healthy, robust spark at the spark plugs during cranking. If spark is ok, the next suspect is a fuel pump problem of some sort. Unlikely a malfunctioning O2 sensor would prevent starting. The output of those aren’t used by the computer until they reach the proper temperature, which usually take a minute or two at least.

BTW OP, you haven’t yet addressed the question above: Why did you remove the fuse in the first place?

Is the check engine light on now? If so, what are the diagnostic codes?
