CE Questions.

[white94sho]

I am sill getting the 176 code of lean bank #2 but I have changed O2 sensors, Changed fuelpumps and getting 40psi, changed fuel pressure regulators, but I also put a 70mm MAF on when we did the pump. (Fuel pump is Walboro 240lph at 40psi). So is there another problem somewhere or did I just happen to get a bad O2 sensor.

Mark Woofter

 

[sdpatt]

Mark,

The 176 code translates to "Oxygen sensor not switching - system is or was lean Left or Front HO2S - Fuel control."

After replacing the O2 sensors, did you clear the codes? To do this, install the jumper, run the EEC test and when the codes are being displayed, remove the jumper. Now, after doing this, run the test to see if the 176 code reappears. If it does, it means the front bank's O2 sensor is not functioning correctly and should be replaced.


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Scott

1991, 254K miles, glass hood, police grill, SVO shifter, Catz fogs,
K&N, 73mm MAF, Superchip, PP Y-pipe, Borla cat-back, 190 lph pump
Eibach/Tokico/polyurethane, Alum SFB, SS front/rear strut braces,
16x7.5" Moda R1, 225/55ZR16 Bridgestone RE730, -1 deg camber x 4,
6 disc CD, Class II hitch, Silver award at SHOklahoma Car Show

 

[white94sho]

Yes, I have cleared the codes numorous times since I have installed the O2 sensors. So it probably just a bad sensor then. Does it make a difference at what speed it comes on? Comes on at about 40-45mph most times.