GX - 1st Gen (2003-2009) Discussion topics related to the 2003 -2009 GX470 models

On the road problems.

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Old 07-02-12, 10:15 AM
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evnpar1020
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Default On the road problems.

Hey guys. Need some help here. We are traveling and the 05 gx isn't doing so well. It has a bad hesitation and speed and getting really bad mpg. Like 14 mpg on highway. Cel is on but the only code is o2 sensor. Bank 2 sensor 1. Would that really cause this big of an issue? Thanks for any help. Just hope we make it home today. 8 hours of driving left.
Old 07-02-12, 03:58 PM
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RCsGX
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Yes a bad air / fuel sensor can cause hesitation and can cause bad mpg. You should get it replaced asap.
Old 07-02-12, 08:04 PM
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evnpar1020
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Made it home. 13 hour ride. Averaged 14 mpg at highway speeds. Pretty bad. Tried most shops looking for sensor and no one had it. Get home and call around and found a store that had 3. Great luck....
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