1998 dodge ram 5.2 L
#1
1998 dodge ram 5.2 L
I am trying to diagnose a problem with my truck.
Symptoms- sucks a lot of gas. It went from 15 mpg to 4 mpg
Error codes from actron ODBII cp9145-p1682(charging system voltage too low) and p0171 (bank 1) system too lean
I have changed all plugs,plug wires, and MAP sensor. I am guessing I have a rail plugged or injector plugged. I am not sure. All of the injectors OHM at 12 ohms.
Any thoughts?
Symptoms- sucks a lot of gas. It went from 15 mpg to 4 mpg
Error codes from actron ODBII cp9145-p1682(charging system voltage too low) and p0171 (bank 1) system too lean
I have changed all plugs,plug wires, and MAP sensor. I am guessing I have a rail plugged or injector plugged. I am not sure. All of the injectors OHM at 12 ohms.
Any thoughts?
#2
RE: 1998 dodge ram 5.2 L
probably an o2 sensor as its the one that actually senses the rich/lean mix. With your gas milleage i bet your running rich because the faulty o2 sensor is telling your computer that your lean regardless of mix. and whats the voltage of the electrical system while the engine idles?
#3
RE: 1998 dodge ram 5.2 L
I will check the sensors. They appear to send voltages withing spec (between 0 and 1 volt) and OHm out OK but they are probably cheap enough to replace. The exhaust has a lot of gas coming out of the system. When I accelerate, there is a lot of smoke from excess gas.
How do you check system voltage?
How do you check system voltage?
#4
RE: 1998 dodge ram 5.2 L
just check the voltage at the battery while the motor idles. it should be around 13-14v. i wouldn't drive your truck like that, your damaging your catalytic converter by overloading it with fuel. also i doubt you have anything wrong with your fuel delivery system and i highly suspect your o2 sensor. bottom line is that you know your running rich but the computer thinks its lean, thats your real problem
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