# 2009 Hyundai Elantra Touring camshaft/crankshaft fault codes **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** hyundai, elantratouring\ **Created:** [September 23, 2018, 3:25am UTC](https://community.cartalk.com/t/2009-hyundai-elantra-touring-camshaft-crankshaft-fault-codes/125529 "2018-09-23T03:25:54Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Anton](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/anton/32/13339_2.png) [@Anton](https://community.cartalk.com/u/Anton)\ **Post date:** [September 23, 2018, 3:25am UTC](https://community.cartalk.com/t/2009-hyundai-elantra-touring-camshaft-crankshaft-fault-codes/125529/1 "2018-09-23T03:25:54Z")
My car is throwing camshaft and crankshaft sensor fault codes even after these were replaced and cleared. It idles a little rough but drives ok for a while until suddenly losing power and threatening to stall. After cooling down it will start again (sometimes not so easily) and drives ok until the same occurs. Fault codes come up again. Any ideas where the problem may lie? Cheers ---
**Author:** ![circuitsmith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/circuitsmith/32/40376_2.png) [@circuitsmith](https://community.cartalk.com/u/circuitsmith)\ **Post date:** [September 24, 2018, 2:39pm UTC](https://community.cartalk.com/t/2009-hyundai-elantra-touring-camshaft-crankshaft-fault-codes/125529/2 "2018-09-24T14:39:39Z")
Check the wiring and connectors to the sensors for damage, corrosion or loose socket terminals. Check ground straps on battery cable, body and engine. ---
**Author:** ![TXdealer](https://avatars.discourse-cdn.com/v4/letter/t/50afbb/32.png) [@TXdealer](https://community.cartalk.com/u/TXdealer)\ **Post date:** [September 24, 2018, 4:51pm UTC](https://community.cartalk.com/t/2009-hyundai-elantra-touring-camshaft-crankshaft-fault-codes/125529/3 "2018-09-24T16:51:52Z")
A stretched timing belt or chain can cause these codes. ---
**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:** [September 24, 2018, 5:27pm UTC](https://community.cartalk.com/t/2009-hyundai-elantra-touring-camshaft-crankshaft-fault-codes/125529/4 "2018-09-24T17:27:32Z")
Please post the exact codes ---
**Author:** ![Anton](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/anton/32/13339_2.png) [@Anton](https://community.cartalk.com/u/Anton)\ **Post date:** [September 24, 2018, 10:27pm UTC](https://community.cartalk.com/t/2009-hyundai-elantra-touring-camshaft-crankshaft-fault-codes/125529/5 "2018-09-24T22:27:27Z")
Thanks for your response. The timing belt all seems in order and tensioned properly so I’m thinking the problem might be electrical. cheers ---
**Author:** ![Anton](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/anton/32/13339_2.png) [@Anton](https://community.cartalk.com/u/Anton)\ **Post date:** [September 24, 2018, 10:31pm UTC](https://community.cartalk.com/t/2009-hyundai-elantra-touring-camshaft-crankshaft-fault-codes/125529/6 "2018-09-24T22:31:47Z")
Hey circuitsmith thanks for your response. I think you’re right about it being electrical so I’ll check all those things out. cheers, Anton ---
**Author:** ![Anton](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/anton/32/13339_2.png) [@Anton](https://community.cartalk.com/u/Anton)\ **Post date:** [September 24, 2018, 10:36pm UTC](https://community.cartalk.com/t/2009-hyundai-elantra-touring-camshaft-crankshaft-fault-codes/125529/7 "2018-09-24T22:36:18Z")
Thanks for your response. The codes are P 340/P 345 which I believe are cam and crank position sensors. Mechanically the timing belt and cam alignment seem ok and both sensors have been replaced so it looks like an electrical problem? cheers, ---
**Author:** ![tcmichnorth](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tcmichnorth/32/25126_2.png) [@tcmichnorth](https://community.cartalk.com/u/tcmichnorth)\ **Post date:** [September 25, 2018, 12:51am UTC](https://community.cartalk.com/t/2009-hyundai-elantra-touring-camshaft-crankshaft-fault-codes/125529/8 "2018-09-25T00:51:30Z")
Don’t know if this is applicable to this problem,but there is a camshaft crankshaft variable learn procedure that is supposed to be done after crank sensor replacement. Probably won’t be the problem. Might check to see if there is a spec for gap between the crank sensor and flywheel. ---
**Author:** ![Anton](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/anton/32/13339_2.png) [@Anton](https://community.cartalk.com/u/Anton)\ **Post date:** [September 25, 2018, 1:13am UTC](https://community.cartalk.com/t/2009-hyundai-elantra-touring-camshaft-crankshaft-fault-codes/125529/9 "2018-09-25T01:13:15Z")
Ok thank you. Didn’t know about that (or much else car wise to be truthful) but I’ll look into it. cheers,