Idle and low rpm misfiring

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yamfox81

yamfox81

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Ram Year
2005
Engine
5.7L Hemi
I have an '05 Ram with the 5.7L Hemi. It just turned over 100000 miles, and started giving me trouble. I have a drop in K&N filter, and Magnaflow exhaust, otherwise stock. The troubleshooting codes are P0152 and P0300. Ive already replaced the O2 sensors, and the sparkplugs are less than a year old. I do trailer daily, but this problem started w/o my trailer. Not sure what to do next?
 
Redtruck-VA

Redtruck-VA

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Hemi-5.7, 5.9 12v & 24v diesel
yamfox81 said:
I have an '05 Ram with the 5.7L Hemi. It just turned over 100000 miles, and started giving me trouble. I have a drop in K&N filter, and Magnaflow exhaust, otherwise stock. The troubleshooting codes are P0152 and P0300. Ive already replaced the O2 sensors, and the sparkplugs are less than a year old. I do trailer daily, but this problem started w/o my trailer. Not sure what to do next?
Click to expand...

That's a O2s 'High Voltage' code, means it isn't plugged in or the heater is burned out (open circuit). Check your electrical connection.
 
D

d4j

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Oct 28, 2015
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2005
Engine
Hemi 5.7
yamfox81 said:
I have an '05 Ram with the 5.7L Hemi. It just turned over 100000 miles, and started giving me trouble. I have a drop in K&N filter, and Magnaflow exhaust, otherwise stock. The troubleshooting codes are P0152 and P0300. Ive already replaced the O2 sensors, and the sparkplugs are less than a year old. I do trailer daily, but this problem started w/o my trailer. Not sure what to do next?
Click to expand...

I am having the EXACT same issue, same codes, etc. Did you ever find out the problem??
 
Redtruck-VA

Redtruck-VA

Senior Member
Joined
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Ram Year
2003 & 1989 D250 RWD
Engine
Hemi-5.7, 5.9 12v & 24v diesel
A truck owner on another forum just went through this using two or three replacement O2 sensors from the local auto parts store and none of them fixed the problem. He finally went to the dealer and that sensor did fix the problem. Something about the auto parts store sensors is not right. Good luck...
 
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