Check engine light come from a bad plug?

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Jun 19, 2008 | 11:50 AM

jta98z

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Check engine light come from a bad plug?

Hi guys I installed LTs and Catted Y just the other day. Well when I was putting the plugs back in I think I accidentally cracked one. Pretty sure I did honestly. Well when I started the car up the check engine light came on. When I took it out on the Hwy the throttle felt like it was lagging and kind of floating/fluttering some. All the while the check engine light would blink then go steady for a bit then blink again. Can a plug make the light come on? Thanks!

Jun 19, 2008 | 11:56 AM

VetteMan

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Mine is always on. It has become my best friend.

Jun 19, 2008 | 12:22 PM

2001NBMZ28

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From: Jacksonville, FL

A flashing SES is a misfire, bad plug can do that. See what the code is, could be something else too.

Jun 19, 2008 | 03:47 PM

03 BUSA

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Could also be clogged converter if you still run one.

Jun 19, 2008 | 04:33 PM

ae13291

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From: san fernando valley, california

Quote:

Originally Posted by 03 BUSA

Could also be clogged converter if you still run one.

he said he put a new catted y. anyways, check the ses code and it will tell u exactly which plug is causing the problem! and if u know u cracked a plug why dident u replace it

???

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