mms1361
Member
- Joined
- May 18, 2015
- Messages
- 13
- Reaction score
- 0
- Year, Model & Trim Level
- 2000 ford explorer
I hooked up an obd2 scanner on my truck. Ive never had nor do i have a CEL right now. However when i went through the test that came back as a fail. Doing some quick reading that seems to point to an 02 sensor or possibly a vacuum leak? I went through the whole truck looking for vacuum leaks both visually and with a propane torch. None were found. I have about 18-20 psi in vaccum at idle, im not sure what the norm is. I looked at the 02 sensor data and noticed bank1 sensor 1+2 & bank 2 sensor 1 all displayed fluctuations of between 0.10 to 0.70 volts at idle. However bank 2 sensor 2 seems to be stuck at 1.27 v. Ive read im supposed to have 3 o2 sensors. 2 upstream and one down. However it seems on there i have 4? Which is bank2sensor2 and would it be a good idea to replace it?
Ive also read on some threads that this data is related to fuel trim but i dont know how to put the 2 together for diagnosing. No problems with the truck otherwise. Just pinging and (seemingly)low power on hills.
Ive also read on some threads that this data is related to fuel trim but i dont know how to put the 2 together for diagnosing. No problems with the truck otherwise. Just pinging and (seemingly)low power on hills.
