# P0304 on the 2010 Kia Forte

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P0304

- [10034244](https://open.wenmarpro.com/bulletins/10034244), 2010-10-29: KIA: AUTO CRUISE CONTROL LOGIC UPDATE FOR UPHILL DRIVING PERFORMANCE IMPROVEMENT. THE ACTION WILL INVOLVE A REPROGRAM OF THE CRUISE CONTROL LOGIC AND IMPROVE ROUGH IDLE AND/OR P0304 LOGIC FOR 2.0L VEHICLES WITH VCM \(VARIABLE CHARGE MOTION ACTUATOR\). \*PE
- [10034236](https://open.wenmarpro.com/bulletins/10034236), 2010-10-27: KIA: ECM UPGRADE FOR P0304 DUE TO VCM MOTOR VARIATION. PROVIDES THE PROCEDURE TO UPGRADE THE POWERTRAIN CONTROL MODULE \(PCM\) OF SOME MODEL YEAR VEHICLES. REFLASH HAS ENHANCED VCM \(VARIABLE CHARGE MOTION\) ACTUATOR LOGIC TO IMPROVE A ROUGH IDLE CONDITION AT START UP OR A MIL ON AND STORED DTC P0304 SET AT START\-UP. \*PE
- [10034148](https://open.wenmarpro.com/bulletins/10034148), 2010-10-20: KIA: PCM UPGRADE FOR P0304 DUE TO VCM MOTOR VARIATION. PROCEDURE TO UPGRADE THE POWERTRAIN CONTROL MODULE \(PCM\) OF SOME VEHICLES. THIS REFLASH HAS ENHANCED VCM \(VARIABLE CHARGE MOTION\) ACTUATOR LOGIC TO IMPROVE A ROUGH IDLE CONDITION AT START UP OR A MIL ON AND STORED DTC P0304 SET AT START UP. \*PE
- [10032670](https://open.wenmarpro.com/bulletins/10032670), 2010-04-26: KIA: SERVICE ACTION: PCM UPGRADE DTC P0304 CYLINDER MIS FIRE WITH 2.0L ENGINE AND A/T LOGIC \(SA0250 SOME VEHICLES MAY EXPERIENCE A MIL ON WITH DTC P0304 STORED IN MEMORY. IN MOST CASES THE DTC IS SET ONLY DURING A COLD START AND NORMALLY THE CUSTOMER DOES NOT NOTICE ANY ENGINE STUMBLE, ROUGHNESS OR PERFORMANCE ISSUES. \*PE