Hi Scotty This is Ayham from Jordan ; I like your vedios and am one of your followers😉. Dear ; I have V8 ford expedition 2009 with illuminated check engine light; it shows both P2096 and P2099 codes together- bank 1 lean bank 2 rich - Rear Oxygen sensor in bank 1 reads almost low voltages 0.025 or zero and some times gave 1.275v like the reading when the engine is off, while the anterior sensor O2S11 gave negative readings in mA ( -0.500 mA ) which also means lean but both sensors gave rich readings when I accelerate and give more fuel then both came back directly to there lean readings 👍 in the other hand the rear sensor bank 2 readings remains high 0.850v and above and the anterior sensor O2S12 gave positive readings but near to zero which is near to normal and while accelerating the rear one will not change that much it will go high to 0.950v and the anterior more positive in mA . Also I observed the fuel trim short and long they are compatible with the Oxygen sensors reading in both banks . The dilemma is when I cleared the codes by my OBD2 machine it go's and then it showed check engine light with different codes P2096 P2097 exactly the opposite of the first scenario and all the sensors gave the opposite readings .. exactly like the engine switch between both banks 😂😂😂 and the sensors readings confirmed that.. What do you think Scotty 🤔🤔🤔 ? I will appreciate your help and getting from your worth time 🤗

Comments (4)
AYHAM86
AYHAM86

May God bless you Scotty .. do you think that :

  1. maximum RPM the engine can reach is 4000 ( full max open fuel paddle when the gear in P or N ) then went down slowly to normal ideling .. 2. knocking noise - sound like driving in inappropriate gear number - and
  2. Delay in respond to acceleration Do you think it supports the worn timing belt or chain
ScottyKilmer
ScottyKilmer

Editor

often a worn timing chain will do that, have a pro check that first

AYHAM86
AYHAM86

All the readings I took when the engine reaches its normal working temperature .. and when I cleared P2097 P2098 it shows again both P2096 and P2099 😤😲😫😭😖🤤