lewdka

I have a modified exhaust from the headers straight back. My check engine light and trac light come on every so often is there any fix manually or buyable that i can use to remove this?

mtparker18

What code are you pulling? And are all of your o2's hooked up?

lewdka

I went to a autozone to get the codes pulled which hey do free. The worker stated that my o2 sensors for my exhaust were the codes coming up. I have after market headers as well as a straight back exhaust from there. The o2 sensors are on the pipes but i doubt they will ever read fine with this setup.

Fobbish

iTrader: (1)

It would help a lot if he gave you the codes.

I just installed Megan headers and Downpipe and I've been get Codes P0420 and P0430. Did a DIY O2 sim for the downpipe, its been over 300 miles and no P0430. Now I need to do it one of my other sensors to get rid of P0420.

252kmiles

Hello, can you tell me what do you mean by O2 sim for the downpipe, how did you do this?

thanks

Fobbish

iTrader: (1)

http://www.s10forum.com/forum/f89/do...4/#post6787210

I followed this here. Its another forum. I used parts 42009 that comes with washers. it was $5-6 at autozone. I would say get the others one with no washers n save yourself $2. I ended up using only 1 for the megan downpipe cuz of space. Took maybe about 5mins just to do this.

here's a pic of codes n what sensor. Got this from my.is.



I'm going to add this 2 my header since I'm getting code P0420. I'm going to see if this helps. Its cheaper than the Megan one that u can buy.

252kmiles

Thank you so much buddy, this will def help when I am ready to replace mine.. =)