hey fellow members. before i start going crazy replacing everything to fix the problem, i need some opinions.

it's a 2003 EVO VIII...

here's the story
i rolled over a small tree stump i didnt see. scraped my exhaust from the cat to the mid pipe. heard a thump, and car dies. try numerous times to restart it and nothing.

the only damage i see is the O2 sensor on the exhaust mid pipe which was cracked. no other damage to under body of the car what so ever.

so i replaced the O2 sensor thinking that would fix the problem. that wasnt the fix. now it still wont start.

i started thinking maybe the spark plugs went bad. but not sure if thats the problem.

anyhow i dont want to make it any longer, so what other things can contribute to this problems incase i'm over-looking something.

your insights would be greatly appreciated

 

If that was the only damage done make sure your wire to the o2 sensor are not damaged or ripped apart, if you hit something hard enough to brake the sensor you defiantly want to check the connections.

 

Probably shorted the heater wires and blew the fuse to the computer.

Check all your fuses

 

i replaced the entire O2 sensor harness n all. n it still aint starting. pretty confused how the car wont start.

i looked up and down the entire underbody after replacing the sensor to see any other damages, and nothing. hmmm

 

you did check your fuses right?

 

road spike, i started thinking about maybe a fried ECU as well or like u said, burnt fuse. i'll check again

 

Remember there are 2 fuse boxes one under your steering wheel and one under the hood.

 

crap i forgot to check the fuse box under the steering wheel. i'll do that in the AM as well

 

just an update to my problem

new O2 sensor + 20A fuse = my car starting again.

thanks for your help guys, much appreciated