P0128 and ???
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Joined: Mar 2010
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From: Deep South Louisiana
P0128 and ???
OK so P0128 keeps popping up in my 05 hemi about every 2 weeks. I clear codes with the batt cable, 2 weeks later there is comes again.
So far I have changed the coolant temp sensor and cleaned the intake air and ambient air sensors. I know the next step is a thermostat which I intend to do
Here is what gets me my dash gauge tells me nothing is wrong and my heater tells me my temp is coming up nicely??? So I believe the thermostat is working properly.
So any suggestions out there?
So far I have changed the coolant temp sensor and cleaned the intake air and ambient air sensors. I know the next step is a thermostat which I intend to do
Here is what gets me my dash gauge tells me nothing is wrong and my heater tells me my temp is coming up nicely??? So I believe the thermostat is working properly.
So any suggestions out there?
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Last edited by weedahoe; Dec 22, 2010 at 09:30 AM.
Thread Starter
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Registered User
Joined: Mar 2010
Posts: 15
Likes: 0
From: Deep South Louisiana
Thanks, I have access to Mitchell On-Demand, I know the code and the theory and operation. I was hopeing by chance someone has delt with the coolant coorlation before.
I looked through the TSBs and did not find a problem with overly sensitive PCM for this code but still sometimes the manufacture will address it by putting an update into an updated flash that is ment to correct some other problem...
The most logical repair would be the thermostat which I plan to do as soon as it codes again. From there if it codes yet again I am not sure???
One question I have is could it possibly be the ambient air temp sensor, mine throws crazy readings to my temp readout in my console BUT I'm not sure Dodge pulls its base reading from ambient? I know GM does, it is in the flow chart for that code but ambient sensor is not in the flow chart for Dodge, seems they look soely at intake air temp which mine seems to be reading correctly...
I looked through the TSBs and did not find a problem with overly sensitive PCM for this code but still sometimes the manufacture will address it by putting an update into an updated flash that is ment to correct some other problem...
The most logical repair would be the thermostat which I plan to do as soon as it codes again. From there if it codes yet again I am not sure???
One question I have is could it possibly be the ambient air temp sensor, mine throws crazy readings to my temp readout in my console BUT I'm not sure Dodge pulls its base reading from ambient? I know GM does, it is in the flow chart for that code but ambient sensor is not in the flow chart for Dodge, seems they look soely at intake air temp which mine seems to be reading correctly...
