[Crimsonhawk]

I bought my 2017 Civic Hatch the last week of January. 3 days later I hit a large limb that fell off of a log truck in early morning dark and fog. It bent the inter-cooler, radiator, cover panels, and the left side muffler. I picked up the car from the body shop Friday afternoon and after about a hour of driving the Check Engine light...problem with emissions system light came on and has stayed on since. The place that worked on it won't be open until Monday and I'll call them then. In the meantime, anyone have any idea what could be the cause?

 

[Deathklok]

You'd really need a code reader to plug into the OND2 port to answer the exact issues.If a wire was disconnected from the cat it would do this I suspect.The cat is in the front of the engine bay BTW.Maybe run down to a auto parts store to see if the can loan ya a OBD2 reader and see if they can clear the code for you.

 

[Crimsonhawk]

Thanks, that's a good idea. I'll head down to auto zone tomorrow.

 

[Deathklok]

Yep^^^^

 

[Cabeldude]

Sounds like Death is bang on, most likely an O2 sensor.

 

[Crimsonhawk]

Got it scanned...results:

Def:
Post catalyst fuel system high limit.

Explanation:
The ECM has detected that the fuel trim bias has been command rich
for more than the allowable calibrated time frame.

Probable cause:
1. blocked fuel injector
2. Faulty MAF sensor
3. Low fuel pressure
4. Blocked fuel filter
5. Failed HO2S (Heated oxygen sensor)

Had them clear it it and it came back after 8 miles of driving so it looks like a definite problem. Half of this stuff is Greek to me, anyone know the most probable cause?

 

[Cabeldude]

Again I would say O2 sensor because they are located in the area of your damage.

 

[Deathklok]

Check your MAF connection on top of your air box/air intake.

 

[webbrowan]

With that much damage, tight after having received the car, I can only say "Ouch". I hope that everything was done free of charge for you mate. If you're under warranty it will end up that you'll probably just have to wait for your service shop to be open so you can go back and get them to rectify everything.

 

[Crimsonhawk]

With that much damage, tight after having received the car, I can only say "Ouch". I hope that everything was done free of charge for you mate. If you're under warranty it will end up that you'll probably just have to wait for your service shop to be open so you can go back and get them to rectify everything.

Heh, yeah it made me sick to my stomach and ready to punch a log truck driver in the face.
Luckily, I cooled off a little by the time I caught up with him a mile and a half later as he was
turning into the chipping plant. I realized I had no real recourse because I didn't see it fall off
his truck an couldn't really prove it was his limb. (Though common sense says otherwise).

Only cost me $100 deductible on a 3 grand bill.

The body shop I used is great and they footed me a rental Monday when I brought it back
and they took it over to the dealer to get them to check out the code. They called me today and told me the
dealer said it was a sensor on the exhaust that was unrelated to the accident and would be covered by
warranty when the sensor comes in tomorrow. Body shop guy says he has his doubts about it being unrelated
to the accident (so do I), but whatever, I don't care as long as it's covered and getting fixed.

 

[Deathklok]

Glad they found the problem and covered it free of charge.