KIA: P0128 and P0420

03neonRT · #1 01-16-2008, 02:42 PM

W00t!! Replaced my thermostat over the weekend and now my dash is CEL free!! My gas mileage has also increased from a lowly 18mpg city to a slightly more respectable, but equally pathetic, 23mpg city.

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spikeymikey87 · #2 01-16-2008, 02:55 PM

yay!!! CELs suck ass

neon03se · #3 01-16-2008, 03:02 PM

that solved your P0420 code?

Adionik · #4 01-16-2008, 03:21 PM

Thermostat increased MPG?

03neonRT · #5 01-16-2008, 03:55 PM

Quote:

ORIGINAL: neon03se

that solved your P0420 code?

Yeah in my case it solved the problem, but the P0420 appeared at almost the same exact time as the P0128, so I'm pretty sure they were connected to begin with.

Quote:

ORIGINAL: Adionik

Thermostat increased MPG?

Having my engine running at the correct operating temperature, along with all the other factors involved increased MPG...

Adionik · #6 01-16-2008, 04:05 PM

What made you change it?

03neonRT · #7 01-16-2008, 04:14 PM

Quote:

ORIGINAL: Adionik

What made you change it?

The P0128 code...its a thermostat malfunction code.

neon03se · #8 01-16-2008, 05:37 PM

[quote]ORIGINAL: 03neonRT

[quote]ORIGINAL: neon03se

that solved your P0420 code?

Yeah in my case it solved the problem, but the P0420 appeared at almost the same exact time as the P0128, so I'm pretty sure they were connected to begin with.

sweet

neon03se · #9 01-16-2008, 05:39 PM

i don't know what the hell i did to that post lol