THROWING CODE P0128

chuckster · Post by **chuckster** » Wed Mar 16, 2011 10:53 am

I am throwing code P0128 on my 2008 5.7 R/T Charger AFTER I installed a 180* Jet thermostat. I am using the 93 CAI canned tune from my 7135 Predator.
I have reset the code but it keeps coming back..... The temps are good and fans have been set to proper "lower" settings, basically everything checks out good.
Any suggestions or updates?[/b]

bigsnake · Post by **bigsnake** » Wed Mar 16, 2011 11:52 am

chuckster wrote:I am throwing code P0128 on my 2008 5.7 R/T Charger AFTER I installed a 180* Jet thermostat. I am using the 93 CAI canned tune from my 7135 Predator.
I have reset the code but it keeps coming back..... The temps are good and fans have been set to proper "lower" settings, basically everything checks out good.
Any suggestions or updates?[/b]

Sounds to me like you are not giving your car a chance to warm up after starting.

P0128
This means that the engine's PCM detected that the engine has not reached the required temperature level within a specified amount of time after starting the engine. The intent of the P0128 code is to indicate a faulty thermostat. Similar codes: P0125

In determining the engine did not reach a "normal" temperature, it takes into account the length of time the vehicle has been running, the intake air temperature (IAT) sensor reading, the engine coolant temperature (ECT) sensor reading, and the speed of the vehicle.

Post by **mikel** » Wed Mar 16, 2011 12:39 pm

This can be fixed in a custom tune, post up your last tune written please?

chuckster · Post by **chuckster** » Wed Mar 16, 2011 3:38 pm

Mikel, Thanks for the reply! Last tune written was V.9r27

brandy16 · Post by **brandy16** » Wed Mar 16, 2011 7:50 pm

He means the last tune written from the predator. Download the last tune written and post it here. He will fix it and post the new tune here for you to down load on to your predator.

chuckster · Post by **chuckster** » Thu Mar 17, 2011 9:57 am

Here is my latest tune.

chuckster · Post by **chuckster** » Mon Mar 21, 2011 3:28 pm

Mikel, Any progress about fixing this P0128 code issue? I posted my tune on 3-16-11.

chuckster · Post by **chuckster** » Wed Mar 23, 2011 9:22 am

Anything??

Post by **mikel** » Thu Mar 24, 2011 12:44 pm

chuckster wrote:Anything??

all set...

FAhemiST · Post by **FAhemiST** » Thu Mar 24, 2011 1:13 pm

mikel wrote:This can be fixed in a custom tune, post up your last tune written please?

out of curiosity, 'fixed' meaning you turn the code off for good, or is there something you actually change?

Post by **mikel** » Thu Mar 24, 2011 5:00 pm

fixed , as in changed when it runs the P0128 test.

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