I am new here I have a 98 ram 2500 with a 360 90k the problem I am having is within the last 1k miles Ihave went through 6 o2 sensors. The truck will be running fine the engine light comes on up stream code comes up first within 20 miles the downstream pops up. any help would be greatly appreciated. I have had truck at the dealership, they had it for 2 days and could not find anything. I am using bosch sensors Thanks

 

welcome to DF... check for a o2 heater fuse and see if its blown. my 2000 had one and blew when the wiring shorted and grounded the heater element. this caused some intermittant bucking.

 

I checked the fuse it is in good shape. could i have a bad spark plug causing the sensors to go bad

 

I am thinking you might have a bad sensor sensor, meaning the stupid light inside the truck is coming on when it shouldn't..?

Unplug the light bulb and your problem is fixed