# Need help with a code P0352

**URL:** <https://community.cartalk.com/t/need-help-with-a-code-p0352/170099>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, corvette\
**Created:** [September 18, 2020, 3:27am UTC](https://community.cartalk.com/t/need-help-with-a-code-p0352/170099 "2020-09-18T03:27:42Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Joe-630](https://avatars.discourse-cdn.com/v4/letter/j/c2a13f/32.png) [@Joe-630](https://community.cartalk.com/u/Joe-630)\
**Post date:** [September 18, 2020, 3:27am UTC](https://community.cartalk.com/t/need-help-with-a-code-p0352/170099/1 "2020-09-18T03:27:43Z")

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I have not been able to clear an engine code P0352 on my 2002 Chevrolet Corvette (base). I have replaced the spark plugs, ignition coils, wiring harness and still the code will come up; if I reset the code it might go a few days or it might go a few hours but it always generates the code again after a short time and it is a pain to get the car through state inspection.

It seems to be especially more likely to come up shortly after I have made a hard acceleration run, or after long distances at highway speeds. I do not feel any misfires of any kind, either at idle, or speed or even under hard acceleration it runs and pulls hard and smooth.

I am running out of ideas, the only possible things left that I can think of are something to do with the ECM, or possibly a bad fuel injector?

Any help is gladly appreciated, thank you!

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**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 18, 2020, 9:48am UTC](https://community.cartalk.com/t/need-help-with-a-code-p0352/170099/2 "2020-09-18T09:48:29Z")

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A quick web search says that a vacuum leak can also cause this.

> **[P0352 OBD-II Trouble Code: Ignition Coil B Primary/Secondary Circuit Malfunction](https://www.yourmechanic.com/article/p0352-obd-ii-trouble-code-ignition-coil-b-primary-secondary-circuit-malfunction-by-blake-griffin)**
>
> P0352 code definition Ignition Coil B Primary/Secondary Circuit Malfunction What the P0352 code means The last digit in this particular trouble code indicates that there is an issue detected within the ignition process of...

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**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:** [September 19, 2020, 2:05am UTC](https://community.cartalk.com/t/need-help-with-a-code-p0352/170099/3 "2020-09-19T02:05:02Z")

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I suggest you check the wiring going back to the ECU using a meter. Checking the frequency of the pulses as suggested in the trouble shooting procedure would be good to do also. You can make comparison readings with a good cylinder circuit.

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**Author:** ![Cavell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cavell/32/43396_2.png) [@Cavell](https://community.cartalk.com/u/Cavell)\
**Post date:** [September 19, 2020, 1:19pm UTC](https://community.cartalk.com/t/need-help-with-a-code-p0352/170099/4 "2020-09-19T13:19:45Z")

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If you can’t fix it and have spent xx dollars trying to fix it, can you get a waiver? Or is car doomed to sit forever?