1999 ford e 150 van 6cyl Most likely cause of p1137 code?

Question

also throwing a
 p1137 code

Answer 1

Hi there

P1137 FORD - Lack Of O2 Switches Bank 1 Sensor 2 Lean

Read more: https://www.autocodes.com/p1137_ford.html

The most common cause for this code is the bank 1 O2 sensor AFTER the catalytic converter.