When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
My 1999 AWD RX300 with 175K sat idle for about a month while I worked on the suspension. When I restarted it, the CEL came on; codes were P1150 (A/F ratio sensor circuit range/performance malfunction, bank 2 sensor 1) and P1155 (A/F ratio sensor heater circuit malfunction, bank 1 sensor 1.) I reset, but within 10 miles the CEL came on again, this time throwing the following codes: P0125 (insufficient coolant temp for closed loop fuel control), P1155 again, and P1153 (A/F ratio sensor circuit response malfunction, bank 2 sensor 1.) I'm guessing there must be a single cause for these multiple codes - any thoughts? TIA