# 2008 Pontiac Grand Prix - Did new parts cause codes?

**URL:** <https://community.cartalk.com/t/2008-pontiac-grand-prix-did-new-parts-cause-codes/128332>\
**Category:** Maintenance/Repairs\
**Tags:** pontiac\
**Created:** [November 6, 2018, 8:58pm UTC](https://community.cartalk.com/t/2008-pontiac-grand-prix-did-new-parts-cause-codes/128332 "2018-11-06T20:58:05Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![stan1k1\_144223](https://avatars.discourse-cdn.com/v4/letter/s/76d3ee/32.png) [@stan1k1\_144223](https://community.cartalk.com/u/stan1k1_144223)\
**Post date:** [November 6, 2018, 8:58pm UTC](https://community.cartalk.com/t/2008-pontiac-grand-prix-did-new-parts-cause-codes/128332/1 "2018-11-06T20:58:05Z")

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Hi, I changed the ignition coil & the ICM on a 2008 Grand Prix 3800 v6,… with aftermarket parts notOEM, anyways, now the engine light is on with 5 different codes not even related to the original problem, is it showing these codes because the parts are generic.? what can I do about it besides putting in OEM.? One is an coolant sensor, and 4 are related to the catalytic convertor. Im sure there is nothing wrong with those.