Kia Rio P0300

Kia Rio P0300 service bulletin #135

Kia has issued a service bulletin to address a Kia Rio P0300, P0128, P0140, P0442 & P0461 issue on the vehicles listed below.

Kia has determined that these vehicles may experience a rough idle during a cold start and may set the following Kia Rio P0300, P0128, P0140, P0442 & P0461 trouble codes. Kia has updated the ECM software to address all of these issues.

P0300: Random/Multiple Cylinder Misfire Detected-
P0128: Thermostat Monitoring
P0140 : O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)
P0442: Evaporative Emission System – Leak detected (small leak)
P0451 Evaporative Emission Control System Pressure Sensor Range/Performance
P0461: Fuel Level Sensor “A” Circuit Range/Performance

Models affected by the Kia Rio service bulletin #135

2006 model year with manual transmissions. Federal Emissions ECM #39110–26BE0
2006 model year with automatic transmissions. Federal Emissions ECM #39110–26BE5
2006 model year with manual transmissions. California Emissions ECM #39110–26BE5
2006 model year with automatic transmissions. California Emissions ECM #39110–26BE0
2007 model year with manual transmissions. California and Federal Emissions ECM # 39110-26BG0
2007 model year with automatic transmissions. California and Federal Emissions ECM #39110-26BG5
2007 model year with manual transmissions. California and Federal Emissions ECM # 39110-26BE2
2007 model year with automatic transmissions. California and Federal Emissions ECM #39110-26BE7
2008-11 model year with manual transmissions. California and Federal Emissions ECM #39110-26BG1
2008-11 model year with manual transmissions. California and Federal Emissions ECM #39120-26BG1
2008-11 model year with manual transmissions. California and Federal Emissions ECM #39130-26AH0
2008-11 model year with manual transmissions. California and Federal Emissions ECM #39140-26AH0
2008-11 model year with automatic transmissions. California and Federal Emissions ECM #39110-26BG6
2008-11 model year with automatic transmissions. California and Federal Emissions ECM #39120-26BG6
2008-11 model year with automatic transmissions. California and Federal Emissions ECM #39130-26AH5
2008-11 model year with automatic transmissions. California and Federal Emissions ECM #39140-26AH5
2008-11 model year with manual transmissions. Federal Emissions ECM #39110-26BE3
2008-11 model year with manual transmissions. Federal Emissions ECM #39120-26BE3
2008-11 model year with manual transmissions. Federal Emissions ECM #39130-26J03
2008-11 model year with manual transmissions. Federal Emissions ECM #39140-26J03
2008-11 model year with automatic transmissions. Federal Emissions ECM #39110-26BE8
2008-11 model year with automatic transmissions. Federal Emissions ECM #39120-26BE8
2008-11 model year with automatic transmissions. Federal Emissions ECM #39130-26AJ5
2008-11 model year with automatic transmissions. Federal Emissions ECM #39140-26AJ5
2009 model year with manual transmissions. ECM #39120-26BG1
2009 model year with automatic transmissions. ECM #39120-26BG1

Fix for Kia Rio P0300 and other trouble codes.

Do not replace parts. Start by getting a software update. All dealers and many independently owned shops can perform the software update. A service bulletin is NOT a recall and the software update is not free. Expect to pay about an hour shop time to perform the update. If any of the trouble codes return after the update, then you can perform diagnostics on the specific trouble codes.

©, 2020 Rick Muscoplat