Question on Hyundai Accent Catalytic Converter

[JoshMc]

The catalytic converter can glow from restricting the air flow too much or too much unburnt fuel being sent to it. Your friend is probably correct in suggesting a timing issue. The engine will be a lot louder with the exhaust off so that is normal but the

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[maddy]

Thanks Josh._x000D_
_x000D_
It had check engine light with codes P0442 and P0420. I replaced My gas Cap and reset the codes. I ran for a day and the lights didn’t come up._x000D_
When this happened, I had blinking Check Engine light, I will try to pull the code and post it

[lnknprkfn312@hotmail.com]

flashing cel usually means major problem, a misfire in most cases, so it would be best to check all plugs for fowling and make sure their sparking.

[EricTheCarGuy]

A flashing CEL usually means a misfire which could lead to catalytic converter or engine damage.

[maddy]

Hello…. You guys are Awesome. You almost guessed the problem right._x000D_
_x000D_
Eric, I did the Power balance test and the Cylinders on Extreme left and Extreme right were the Problem. When I unplugged 2 and 3, they almost stopped the engine from Running…. and

[EricTheCarGuy]

I’m not familiar with that ignition system but to me it sounds like you have a bad coil.

[Author]

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