Troublecode OBDII (ALPHA) P CODE

Troubleshooting P1131
Lack Of HO2S Switch - Sensor Indicates Lean.

thia code after changing back O2 Sensor.
help out. if you can please.

98.5 SVT RIP 92 240sx SE [image]http://home.comcast.net/~iansmith321/wsb/media/384458/site1054_t.jpg[/image]