2004 Isuzu Axiom Repair Question
Topics covered: Fuel pressure, Exhaust, Fuel filter.
Mileage: 99 miles.
Mileage: 99 miles.
Asked on July 28, 2011
Check engine light is on
My 04 axiom is throwing 2 codes. p0172 and 1239. i have changed plugs, o2 sensors in the exhaust and fuel filter. still hesitates with reduced speed light on
Answer
Replied on July 28, 2011
P0172 = Fuel trim too rich
P1239 = High fuel pressure system.
You need to check the fuel pressure regulator operations.