Gasoline Fuel System Problems of Lexus LX470

While driving the vehicle, it will suddenly ignore throttle input, and will be idling only. While not stalled, it is difficult to maneuver the vehicle and get out of the way of traffic. This can happen at any time. To remedy the situation, it is necessary to shut the engine off and restart. It can be a dangerous situation because it has happened right at the entrance to a major intersection, and while traveling in congested freeway driving. One repair shop replaced the throttle position sensor, but this has not fixed the problem. It is getting worse, and occurs more frequently than ever.

See all problems of the 1999 Lexus LX470 🔎.

Check engine on with code p0171. The code has been on for over 6 months without any cause/reason. I have worked with Lexus and followed recommendations from Lexus without any success of resolving it. Lexus took a fuel sample in August 2010 and I have not received any responses from Lexus as of Nov. 15, 2010. Since the "check engine" light has been on regardless since Feb. 20, 2010, the function of "check engine" light is lost. This is a safety hazard as the driver will no longer receive any warning of any real potential problem with the vehicle. Updated 01/20/11 the consumer was informed the oxygen sensor needed to replaced. However, the check engine light illuminated again. The dealer has been unable to pinpoint the problem.

See all problems of the 2004 Lexus LX470 🔎.