peterock98

iTrader: (25)

My car has long tube headers and I'am on my second acdelco pass. side o2 sensor.My keeps throwing code 0155.The drivers side is good.I brought one bosch 13111 o2.Do you think I should install 2 new bosch sensors or leave the drivers side alone.The drivers side o2 is an acdelco & only has about 8000 miles on it.

ringram

Open loop can be your friend too

peterock98

iTrader: (25)

I thought open loop = 10 mpg

DramaFoYoMama

If it's not tuned properly, yes. However, open loop can definitely be your friend as ringram stated. I've been running open loop for a year and a half and said goodbye to dying O2's. I run 15.6:1 on the freeway, which can't been done properly with closed loop (yes, it can be done, but your VE table would be a nightmare).

peterock98

iTrader: (25)

Thanks all