jj_easton
New Member
- Joined
- January 20, 2004
- Messages
- 1
- Reaction score
- 0
- City, State
- Manhattan, KS
- Year, Model & Trim Level
- '96 Explorer 4.0
My check engine light came on with no warning and upon testing it showed a PO420 which said "The PCM has determined that the cataylst system effiency for bank 1 is below threshold for the current engine operating conditions. (Dank 1 identifies the location of cylinder #1, while Bank 2 identifies the cylinders on the oppiste bank)
I have had an oil leak but don't know what from and I did find coolant on the ground today.
JJ
I have had an oil leak but don't know what from and I did find coolant on the ground today.
JJ
