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2004 Isuzu Axiom Repair Question


Topics covered: Fuel pressure, Exhaust, Fuel filter.
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

Avatar Asked by joshp

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.

Tiny Answered by KHLow2008 (expert)
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