2002 dodge Durango 4.7?

Code PO172 fuel system bank 1 sensor 1 lean,PO172b bank 1 system too rich. Any ideas what this could be we replaced both oxygen sensors and throttle position sensor.

Comments

  • have someone diagnose it and do a pressure test on it,first thing id do is run a compression check and fuel pressure test on it this might answer some of your questions on it,buying parts that aren't helping it is going to get really expensive after a while,good luck.

  • in case you have a blockage on your radiator it is going to abate the flow of fluid, accordingly battling it from cooling. At bigger speeds what flow is occuring is getting extra airflow permitting it to chill out extra. It in all probability isn't your thermostat by way of fact that should dam all coolant flow and reason it to overheat at any velocity. It overheats quicker while working the AC for the reason that's extra taxing on your engine becoming extra warmth to get rid of. Worse case subject is which you have a blockage interior your motor, wherein case you have a actual subject. something you're able to do at domicile for a speedy examine is while the motor is at idle and warm is to squeeze your hoses popping out of and going into the radiator, (use a rag over your hand, the hoses would be warm). If one is tricky, I propose relatively tricky, you have a blockage in it. do not ignore that your decrease hose, many times yet not continuously, has a spring in it to keep away from it from collapsing from the suction from the water pump. consequently it ought to have some supply to a element. Blockages can happen from a develop of old antifreeze or a deterioration of the copper interior. i could initiate with a severe tension radiator flush, it ought to reason your radiator to fail in spite of if that's corroded. in spite of the undeniable fact that that's extra useful for it to fail in the keep then on the facet of the line. If that doesn't restoration it then i could have the mechanic evaluate it, in case you believe him, he shouldn't steer you incorrect.

  • I hope with all my heart that it will break down soon , My question is why are you still driving a gas guzzle suv?

    Major repair ahead

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