Just changed my oil and replaced the battery yesterday in my '99 Mustang GT. About 45 - 1hr of driving afterwards my CEL comes on, I get codes
P0136
P0141
Could this be related to the new battery? Or is it just time to replace some O2's? I'm at 99,350mi. I really don't want to buy the rear ones, I'd rather get a MIL eliminator till I can afford the Diablo tuner. Being that this said something about circuit fault, could this be more than just changing O2's and adding a MIL eliminator or not?
P0136
P0141
Could this be related to the new battery? Or is it just time to replace some O2's? I'm at 99,350mi. I really don't want to buy the rear ones, I'd rather get a MIL eliminator till I can afford the Diablo tuner. Being that this said something about circuit fault, could this be more than just changing O2's and adding a MIL eliminator or not?