I have a 1999 RX300 with 225,000. Baby Girl and I have been through thick and thin for 15 years! My husband doesn't want to spend any money on her because of the mileage, but I don't want to get rid of her. The CEL came on with the following codes: P0171, P0141, P0171, P0141, P1133 and P1133. The helpful person at AutoZone told me I need to replace the MAF sensor. Is this correct and would it fix the issues?

Around 140,000 miles, I replaced all O2 sensors, fuel filter, fuel pump, water pump, alternator, and timing belt. Thanks for your help!

 

The recommendation is to clear all codes and then read on the first onset of cel.

Salim

 

Thanks! I'll do that and let you know.