# Service Engine soon light came on my Nissan Sentra 2011 **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [October 15, 2014, 4:20am UTC](https://community.cartalk.com/t/service-engine-soon-light-came-on-my-nissan-sentra-2011/87661 "2014-10-15T04:20:18Z")\ **Posts on this page:** 7\ **Page:** 2
**Author:** ![insightful](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/insightful/32/2732_2.png) [@insightful](https://community.cartalk.com/u/insightful)\ **Post date:** [October 22, 2014, 9:30pm UTC](https://community.cartalk.com/t/service-engine-soon-light-came-on-my-nissan-sentra-2011/87661/21 "2014-10-22T21:30:52Z")
“…it would be better to change all 4 of them, something along the lines of since I’m paying for labor etc”. Is that necessary?" There is almost no labor involved: I’d get the new plugs and see how it runs. If there’s still a problem, you could put new coils in yourself. ---
**Author:** ![pleasedodgevan2](https://avatars.discourse-cdn.com/v4/letter/p/ad7895/32.png) [@pleasedodgevan2](https://community.cartalk.com/u/pleasedodgevan2)\ **Post date:** [October 23, 2014, 8:04am UTC](https://community.cartalk.com/t/service-engine-soon-light-came-on-my-nissan-sentra-2011/87661/22 "2014-10-23T08:04:30Z")
Misfire is the serious problem because it can destroy expensive exhaust system (smog control) parts. After those are finished, the engine is next in line for damage. ---
**Author:** ![Tyler.S](https://avatars.discourse-cdn.com/v4/letter/t/b5a626/32.png) [@Tyler.S](https://community.cartalk.com/u/Tyler.S)\ **Post date:** [October 24, 2014, 1:17am UTC](https://community.cartalk.com/t/service-engine-soon-light-came-on-my-nissan-sentra-2011/87661/23 "2014-10-24T01:17:02Z")
Well final update, I’m paying for new spark plugs and new coils and man did it burn a hole in my pocket. Repairs cost me about a grand. Not sure if this is a fair price though but I’ve zero knowledge on this ---
**Author:** ![wesw](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/wesw/32/2713_2.png) [@wesw](https://community.cartalk.com/u/wesw)\ **Post date:** [October 24, 2014, 1:50am UTC](https://community.cartalk.com/t/service-engine-soon-light-came-on-my-nissan-sentra-2011/87661/24 "2014-10-24T01:50:39Z")
some service engine soon lights come on after so many miles automatically whether there are problems or not., my cougar had such a light. I have a bad feeling that the op payed a grand when his only problem was an aic valve needed cleaning or some other simple problem unrelated to his light. ---
**Author:** ![BustedKnuckles](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bustedknuckles/32/25_2.png) [@BustedKnuckles](https://community.cartalk.com/u/BustedKnuckles)\ **Post date:** [October 24, 2014, 5:15am UTC](https://community.cartalk.com/t/service-engine-soon-light-came-on-my-nissan-sentra-2011/87661/25 "2014-10-24T05:15:26Z")
@wesw, the code came back P0303. Nothing to do with the AIC or IAC. ---
**Author:** ![wesw](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/wesw/32/2713_2.png) [@wesw](https://community.cartalk.com/u/wesw)\ **Post date:** [October 24, 2014, 5:30am UTC](https://community.cartalk.com/t/service-engine-soon-light-came-on-my-nissan-sentra-2011/87661/26 "2014-10-24T05:30:00Z")
oops, missed that ---
**Author:** ![Naveed](https://avatars.discourse-cdn.com/v4/letter/n/9de0a6/32.png) [@Naveed](https://community.cartalk.com/u/Naveed)\ **Post date:** [March 22, 2018, 3:38pm UTC](https://community.cartalk.com/t/service-engine-soon-light-came-on-my-nissan-sentra-2011/87661/27 "2018-03-22T15:38:35Z")
It was checked by mechanic and showing error in EVAP, he told me that gas cap has to be replaced. Please advice [Previous page](https://community.cartalk.com/t/service-engine-soon-light-came-on-my-nissan-sentra-2011/87661.md?page=1)