2001 Rx300 Code P1130

[jimmouse]

P1130

Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Bank 1 Sensor 1)

Just drove thru a bump during a wet day. Then engine light anb VSC light turned on. This happened every 4-5K miles since last October. I usually disconnect the battery and the light will remain off for another 4-5k miles.

Any one here has same experience? Any cause or solution?

Thanks a lot.

[steviej]

the A/F sensor is getting lazy if not ready to die.

Ultimate fix is to replace it.

This sensor is the hardest to get at. It is between the cat and the cylinder block on the bank of cylinders closest to the firewall. Not much wiggle room back there.

Sensor will run you about $225 from Toyota, $275 from Lexus, but you may be able to get a Denso sensor on line (www.sparkplugs.com).

steviej

[jimmouse]

the A/F sensor is getting lazy if not ready to die.

Ultimate fix is to replace it.

This sensor is the hardest to get at.  It is between the cat and the cylinder block on the bank of cylinders closest to the firewall.  Not much wiggle room back there.

Sensor will run you about $225 from Toyota, $275 from Lexus, but you may be able to get a Denso sensor on line (www.sparkplugs.com).

steviej

←

STEVIEJ. Thanks a lot.

Next time it come up, it will be in the garage.