the ck engine light is on , the code reads P0172 which says Bank 1 too rich

Question

The ck engine light on, shows p0172 which is Bank 1 Too rich

Answer 1

P0172 Fuel trim too rich Bank 1

Rich running condition are when there is more fuel to air ratio, the item that should be check is the airfilter,Most running rich condition are mechanical related such as low compression, so mechanical condition should be ruled out, You also need to check for other code that may be acompanied by this code condition, This engine is popular for timing chain wear,TSB # 11340B,