Changed coils, still have engine light

[mayhawboy's LS]

I finally got two new coils in from the stealership. $167 bucks for two. The guy said that he gave them to me at wholesale. Stuck it to me, but i was desperate. Hate it with a passion when my cars run like crap. Nonetheless, i put the coils in, and it ran like a scalded dog (that's Southern for fast). It nearly scared me. Got all sideways in a wet road and spun nearly into third gear (everything's wet thanks to TS Cindy). Needless to say its running good and i'm 90% happy. Yes partially, i still have an engine light on. What could this be? Do i need to clear the codes from when it was running bad or what. it's not blinking like before, just staying lit. Any help would be awesome.

 

[eL eS]

I could reset after a few drives but if you want to reset it I would go to autozone and ask them to read the pcm to get the code and reset it. Wait to see if it returns.

 

[mayhawboy's LS]

thanks, dude. could disconnecting the battery for a length of time reset the codes?

 

[Grey Navi]

thanks, dude. could disconnecting the battery for a length of time reset the codes?

Yes. Do that before you go into Pepboys to get it read. Good luck.

 

[eL eS]

yep disconnect it for about 10 minutes. someone mentioned a way to do it faster which involved removing both _ and + terminals and clampping them together and applying the beake but I have not tested it.

Please have the pcm scanned be fore you reset it though. Of course if it is a real problem it will come back but it is always best to know what you had before doing so.

 

[mayhawboy's LS]

I'll try disconnecting the battery for about ten, then reconnect and see what happens. probably should just let it idle for a few when i reconnect. eLeS, would probably trust you if you were here and wanted to try clamping the leads together, but i think i'll just try disconnecting for now. Thanks for the advice.

 

[lsbit]

Well that's good news. My check engine light went away a few days after the repair.

 

[mholhut]

Well that's good news. My check engine light went away a few days after the repair.

Older OBDII cars used to reset immdiately. On the LS, it takes a few drive cycles for the SES light to clear... so if it bothers you, disconnect the battery; or just give it a few days.