# 2001 Acura CL Check engine light

**URL:** <https://community.cartalk.com/t/2001-acura-cl-check-engine-light/12172>\
**Category:** Maintenance/Repairs\
**Created:** [March 25, 2008, 1:02pm UTC](https://community.cartalk.com/t/2001-acura-cl-check-engine-light/12172 "2008-03-25T13:02:28Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![F1Flagger](https://avatars.discourse-cdn.com/v4/letter/f/a9adbd/32.png) [@F1Flagger](https://community.cartalk.com/u/F1Flagger)\
**Post date:** [March 25, 2008, 1:02pm UTC](https://community.cartalk.com/t/2001-acura-cl-check-engine-light/12172/1 "2008-03-25T13:02:28Z")

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I have a 01 Acura Cl, with about 80,000.  
  
 The check engine light came on. It had codes for random misfire, started in #1, then rotated thru all 6 cylinders.  
  
 I changed the plugs and reset.  
  
 Came back on.  
  
 I added injector cleaner, (BG, then seafoam). reset the light, It returned.  
  
 I have tried a new coil in the #1 clylinder to no avail.  
  
 What should I do next?

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**Author:** ![Joseph\_E\_Meehan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/joseph_e_meehan/32/21_2.png) [@Joseph\_E\_Meehan](https://community.cartalk.com/u/Joseph_E_Meehan)\
**Post date:** [March 25, 2008, 8:36pm UTC](https://community.cartalk.com/t/2001-acura-cl-check-engine-light/12172/2 "2008-03-25T20:36:26Z")

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If it is having misfires on all cylinders, then any part that is related to only one cylinder, like a plug, is not going to be the problem. It could be further up the line so the signal that triggers the spark is not being made. It could also be a problem with the CEL system.

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**Author:** ![F1Flagger](https://avatars.discourse-cdn.com/v4/letter/f/a9adbd/32.png) [@F1Flagger](https://community.cartalk.com/u/F1Flagger)\
**Post date:** [March 25, 2008, 10:02pm UTC](https://community.cartalk.com/t/2001-acura-cl-check-engine-light/12172/3 "2008-03-25T22:02:51Z")

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Could you tell me what you mean by "Further up the line’?  
And how to check what you mean.  
Thanks.

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**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\
**Post date:** [March 26, 2008, 4:48pm UTC](https://community.cartalk.com/t/2001-acura-cl-check-engine-light/12172/4 "2008-03-26T16:48:50Z")

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Isn’t that under emissions warranty yet?

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<div class="post-metadata">

**Author:** ![F1Flagger](https://avatars.discourse-cdn.com/v4/letter/f/a9adbd/32.png) [@F1Flagger](https://community.cartalk.com/u/F1Flagger)\
**Post date:** [March 29, 2008, 1:39pm UTC](https://community.cartalk.com/t/2001-acura-cl-check-engine-light/12172/5 "2008-03-29T13:39:35Z")

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Good question!  
I never thought of that.