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2001 Lexus RX 300 Base 4dr SUV

2001 Lexus RX 300
Trim Info:
Front Wheel Drive, 4 Door SUV, Mid-Size Station Wgn
19 mpg city / 23 mpg hwy
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December 6, 2011, 6:50 am

Nicole W
 

Question: Sluggish vehicle

Feels Like>> Vehicle is sluggish>> When I need passing power and press the accelerator to the floor>> Yes>> Got a P0171 code. Vehicle is sluggish. When you add good gas and injector cleaner in tank it feels better, but comes back. Replace MAF sensor. No difference. Also, there is intermittent starting. There is a after market remote start on the vehicle for 6 years. No problem until now.


December 9, 2011, 3:30 pm

Ron W
Expert Mechanic

P0171 System Too Lean (Bank 1) Most likely your O2 sensor is having an issue or there is a crack in the exhaust manifold. Here's a like with more info.

http://www.obd-codes.com/p0171


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