When you say bad gas, do you mean it had dirt or water in it ?
Dodge stopped using an inline fuel filter in the 1990s so the only protection is a small sock filter before the pump inside the tank.
That sock could be plugged up if fuel pressure is low.
SOURCE: location of oxygen sensor
I believe you may have three (3) O2 sensor, (2) of the sensor is on ether side of the exhaust down pipe and some times called up stream O2 sensor, the third O2 sensor know to some as the down stream O2 and is after the Catalytic converter.
The up stream O2 monitors the left and right side banks and sends signals to the ECM to make the adjustments to the injectors to keep the proper air/fuel ratio.
The down stream O2 monitors the catalytic converter and sends signal to the ECM if the catalytic converter has gone bad.
Good luck and hope this helps. If you get it scanned at Auto Zone, they should be able to let you know which O2 has gone bad so as to not change all three. You could always check the wire harness to the down stream O2 for corrosion. Keep me posted
SOURCE: 99 Dodge 3500 Van, 5.9.
Had to get a neighbor mechanic to help. He found Cat Converter was totally plugged, which was not suggested by Fixya.
SOURCE: sputtered & died
this happened to me on my 1999 dodge ram and it ended up being the fuel pump
SOURCE: My 2004 Dodge Ram 1500
faulty O2 sensors will throw a lot of things out of whack so start there, allow diagnostic reboot, drive and check codes again...
SOURCE: 1998 DODGE RAM 1500 4x4
Check engine light is on i accelerate and the rpms go to around 4.5 and no acceleration then the check engine light blinks 5 times. Anyone have this problem?
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