HI Scotty
My name is Chris im HVAC tech in Vancouver Canada I bouught 2013 Kia forte EX 2 l engine 178 456 kM
My mechanic did pre sale inspection found misfire code on 3 out of 4 cylinders i changed plugs and installed new igntion coils on Densso coil and three after market
My fuel economy is bad 13 liters Canadian to 100 km? Do u think i should get rif of after market coils and stick with the OEM DENSSO coil
I have ran the OEM coils as well ans my mifire was due to cracked Spark plug i get the same fuel econmy with Denssos
Happy Holidays
Did you check the air filter?
My mechanic did pre sale inspection found misfire code on 3 out of 4 cylinders i changed plugs and installed new igntion coils on Densso coil and three after market
I'm not sure what you mean, here, did you replace three of the OEM coils with aftermarket ones? If so, that's a big no-no. Always replace ignition coils with new OEM ones (not the Chinese company, OEM, either).
You could also try 505 CRF fuel system cleaner, if you changed the air filter recently.
@justin-shepherd I'd also say buying a used car where the pre-sales inspection reveals 3 out of 4 cylinders misfiring is a big no-no in and of itself.
True. He may be able to do compression and leakdown tests if he tries Bernie's cleaner and it doesn't result in anything.
Good Morning all Chris HVAC guy from Vancouver Canada i got rid of aftet Market coils and intalled OEM also fuel compresion test was done great compression i will check air filter and order Bernies 502 cleaner
Thanks
Never buy Kias. ESPECIALLY not misfiring Kias! Good luck hope you get rid of it soon.
Hi a month ago i posted
Topics merged. Please try to keep your related troubleshooting together.
I see that you've created two accounts, which violates forum rules. Why did you make the second one?
Hi a month ago i posted i was gettong horrible fuel ecommy on 2013 Kia Forte ex 2.0 4 cylinder
O2 sensor bank 1 sensor 2 in the caytytic convwrter failed now the car is running Great do you think i can clean bank 1 sensor upstream sensor it has not failes im trying to be pro active
Best not to mess with it, you can easily ruin an O2 sensor while attempting to clean it.
O2 sensors will usually last a very long time unless there is an engine problem like oil burning that contaminates them. If that's the case the engine problem should be corrected. Other than that just replace an O2 sensor if and when it fails.
