# 2003 Volkswagen Beetle - P0172 code **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** beetle, volkswagen\ **Created:** [October 14, 2020, 12:12pm UTC](https://community.cartalk.com/t/2003-volkswagen-beetle-p0172-code/171191 "2020-10-14T12:12:17Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![bop7176](https://avatars.discourse-cdn.com/v4/letter/b/87869e/32.png) [@bop7176](https://community.cartalk.com/u/bop7176)\ **Post date:** [October 14, 2020, 12:12pm UTC](https://community.cartalk.com/t/2003-volkswagen-beetle-p0172-code/171191/1 "2020-10-14T12:12:17Z")
I have a Beetle 1.8 turbo, the check engine light keeps coming on with a cope of P0172 Mass Air flow Sensor I changed that and it check engine light came back on, then also the EPC light goes on and off, also when I floor the gas pedel it has a hesitation which wont go past 50 miles per hour ---
**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\ **Post date:** [October 14, 2020, 3:28pm UTC](https://community.cartalk.com/t/2003-volkswagen-beetle-p0172-code/171191/2 "2020-10-14T15:28:28Z")
Bite the bullet, find a VW mechanic or use a VW dealership and pay the diagnostic fee. ---
**Author:** ![bop7176](https://avatars.discourse-cdn.com/v4/letter/b/87869e/32.png) [@bop7176](https://community.cartalk.com/u/bop7176)\ **Post date:** [October 14, 2020, 3:41pm UTC](https://community.cartalk.com/t/2003-volkswagen-beetle-p0172-code/171191/3 "2020-10-14T15:41:28Z")
I did and they told me that the EOC light needs to stay for them the be able to check it out ---
**Author:** ![Cougar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cougar/32/21348_2.png) [@Cougar](https://community.cartalk.com/u/Cougar)\ **Post date:** [October 15, 2020, 3:03am UTC](https://community.cartalk.com/t/2003-volkswagen-beetle-p0172-code/171191/4 "2020-10-15T03:03:23Z")
It sounds like the trouble isn’t with the MAF sensor itself. Air leaks within the intake or exhaust systems will make the O2 sensor compensate for a lean fuel condition and add more fuel to the mixture. Also a faulty fuel injector can add excessive fuel to the engine. ---
**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\ **Post date:** [October 15, 2020, 3:46am UTC](https://community.cartalk.com/t/2003-volkswagen-beetle-p0172-code/171191/5 "2020-10-15T03:46:53Z")
> [@bop7176](#): > > cope of P0172 Mass Air flow Sensor Uh, no . . . P0172 does NOT mean the MAF is bad It means rich mixture Who told you to replace the MAF . . . ?! Let me guess . . . Autozone? First you say EPC . . . then you say EOC Which is it? In any case, you need to diagnose that rich condition properly A completely clogged engine air filter or an injector that is flowing way too much would be examples of a rich condition. An air cleaner housing full of acorns . . . think rodents . . . could also cause a rich condition. I’ve also seen cases of cheapo aftermarket air filters where the glue is slobbered on so thick that it caused a rich condition . . . because the glue was actually restricting air flow ---
**Author:** ![bop7176](https://avatars.discourse-cdn.com/v4/letter/b/87869e/32.png) [@bop7176](https://community.cartalk.com/u/bop7176)\ **Post date:** [October 15, 2020, 1:24pm UTC](https://community.cartalk.com/t/2003-volkswagen-beetle-p0172-code/171191/6 "2020-10-15T13:24:52Z")
Sorry its. EPC. Light keeps going on and off. I brought the car to a mechanic he put the meter on it to get these codes for the MAF ![](https://global.discourse-cdn.com/cartalk/original/3X/5/7/572a28c5f65cce385d8c41b128e384e8e1ccae5e.gif)