AzSc4

So I'm driving home tonight and am taking off from a light and I out of nowhere the car looses tons of power. i had to give it 3/4 throttle just to get up to 40. Im only about 5 minutes from home so I decided to just limp it back. It wasnt really running rough like it was missing or anything, water temp was fine and no check engine or any other indicators....but it did sound very weird. The exhaust note was very deep and muffled sounding with a sputter.

I get it home and it somehow idled but only at like 400 rpm. I shut it off as soon as I parked. Smelled something burning and a little smoke coming from out of the hood. I pop it and don't really see too much out of the norm. I get under the car and notice that the drivers side cat is GLOWING. Run around to the other side and same thing on the passenger cat.

Any ideas????


Thanks guys


Car is just shy of 200k......

IS_250

iTrader: (2)

do a search....
this goes in the performance section...

but im betting you've got a dead ignition coil or ignitor.

SClean4

Could it be your cats are clogged or something? If they haven't been replaced in 200k miles, might want to if that's what's contributing to your problem.

StiCk3

iTrader: (5)

might be a misfire in one or more of the cylinders. unburnt gases can get into the cat and light it up. You probably will get a CEL if you drive it a few more times. Get to an Autozone and see if any codes are stored in the ECU

AzSc4

Thanks for the quick responses guys, I'll look into those things.

PS. sorry for posting in the wrong section...could a mod move it

Mistahxken

yo any updated on your problem or dilema? because today i had the same symptoms: loss of power, acceleration have to to floor to get it up to 40... my car idle and it sounds muffled on the passenger side and has a rattle the exhaust sounded very low usually it has a deep sound.... Clogged cat possiblity? im taking it to a muffler shop tommorow anyone have any inputs or advice?

dallasbean

Hi, i dont have this problem but i am passed the 200k miles and i just want to know the update to this just in case i expirence the same thing in the near future.

ihiryu

iTrader: (7)

I would say it's a dead coil.

Mistahxken

No dead coil........ cat has been deleted lol

Mistahxken

talking about the ignition coil correct?

ihiryu

iTrader: (7)

yeah there is two of them.

sliva001

^^^ this happened to me too! the unburned fuel due to the failed coil/ignitors super heats the cats.

ChronoJ1

iTrader: (2)

Having this exact problem since yesterday. What was the exact problem?

Edit: searching more has pointed it to bad ignition coil. Hopefully this is it.

topdog849

iTrader: (1)

had this issue on my sc3 but it was the timing being off. too much unburnt fuel not making power and burning cats.

ChronoJ1

iTrader: (2)

What was your symptom?

Mine are:
- Very rough idle
- Absolutely dismal power
- Very rich exhaust fume
(all happened all of sudden)

I'm hoping to be able to narrow down the problem so i can have the right parts replaced.