P1183 KIA Possible Causes
- Rail pressure regulator circuit.
- Rail pressure regulator component
First diagnose P1183 KIA code
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.
Cost of diagnosing the P1183 KIA code
Labor: 1.0The cost of diagnosing the P1183 KIA code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
P1183 KIA Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1183 KIA MeaningRail pressure regulator, which is installed in high-pressure pump, controls rail pressure as regulating fuel quantity supplied to the common rail. ECM performs duty control of rail pressure regulator in order to keep rail pressure at target rail pressure according to current engine loading condition.
As rail pressure regulator duty rises, more fuel flows into common rail so, rail pressure increases.
When rail pressure regulator operation stops due to the power supply cut off to rail pressure regulator, the maximum fuel quantity flows to common rail as passage inside regulator fully opened.
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