Related PIDs

Item (definition)	Unit/Condition	Definition	Condition/Specification (Reference)
APP1	%	Accelerator pedal opening angle (absolute value) input from APP sensor No. 1	Accelerator pedal released: Approx. 16% Accelerator pedal fully depressed: Approx. 91%
APP1	V	APP sensor No. 1 voltage	Accelerator pedal released: Approx. 0.78 V Accelerator pedal fully depressed: Approx. 4.54 V
APP2	%	Accelerator pedal opening angle (absolute value) input from APP sensor No. 2	Accelerator pedal released: Approx. 7.84% Accelerator pedal fully depressed: Approx. 45.49%
APP2	V	APP sensor No. 2 voltage	Accelerator pedal released: Approx. 0.39 V Accelerator pedal fully depressed: Approx. 2.27 V
ECT	°C, °F	Engine coolant temperature input from ECT sensor No. 1	Displays ECT
ECT	V	ECT sensor No. 1 voltage	Ignition switched ON (engine off) ECT is 29 °C {84 °F}: Approx. 2.65 V Idle (after warm up) ECT is 88 °C {190 °F}: Approx. 0.71 V
FUEL_PRES	KPa {MPA}, mBar {BAR}, psi, in H20	Fuel pressure input from fuel pressure sensor	Displays fuel pressure
FUEL_PRES	V	Fuel pressure sensor voltage	Ignition switched ON (engine off) Fuel pressure is approx. 16.91 MPa {172.4 kgf/cm ² , 2453 psi}: Approx. 2.91 V Idle (after warm up) Fuel pressure is 3.44-3.95 MPa {35.1-40.2 kgf/cm ² , 499-572 psi}: 0.98-1.05 V (ECT is 90 °C {194 °F})
IAT	°C, °F	Intake air temperature (No. 1) input from IAT sensor No. 1	Displays IAT (No. 1)
IAT	V	IAT sensor No. 1 voltage	IAT is 20 °C {68 °F}: Approx. 2.70 V IAT is 40 °C {104 °F}: Approx. 1.80 V IAT is 60 °C {140 °F}: Approx. 1.20 V
LOAD	%	Ratio of actual amount of intake air to the maximum air charging amount (mass volume) of cylinder	Idle (after warm up): Approx. 22.35% Racing (engine speed is 2, 000 RPM): Approx. 17.25% Racing (engine speed is 4, 000 RPM): Approx. 19.21%
LONGFT1	%	Fuel learning correction amount estimated based on A/F sensor signal	Idle (after warm up): Approx. -6.25% Racing (engine speed is 2, 000 RPM): Approx. -3.9% Racing (engine speed is 4, 000 RPM): Approx. -3.9%
MAF	g/Sec	Mass air flow input from MAF sensor	Displays MAF
MAF	V	MAF sensor voltage	Ignition switched ON (engine off) (MAF: 0.59 g/s {0.078 lb/min}): Approx. 0.72 V Idle (after warm up) (MAF: 2.17 g/s {0.287 lb/min}): Approx. 0.97 V Racing (engine speed is 2, 000 RPM) (MAF: 4.73 g/s {0.626 lb/min}): Approx. 1.26 V
MAP	KPa {MPA}, mBar {BAR}, psi, in H20	Manifold absolute pressure input from MAP sensor	Displays MAP
MAP_V	V	MAP sensor voltage	Ignition switched ON (engine off) (MAP:101 kPa {1.03 kgf/cm ² , 14.6 psi}): Approx. 4.12 V Idle (after warm up) (MAP: 33 kPa {0.34 kgf/cm ² , 4.8 psi}): Approx. 1.9 V Racing (engine speed is 2, 000 RPM) (MAP: 26 kPa {0.27 kgf/cm ² , 3.8 psi}): Approx. 1.23 V
O2S11	μA	A/F sensor current	Idle (after warm up): 0-50 μA Deceleration fuel cut (accelerator pedal released from engine speed of 4, 000 RPM or more): Approx. 3.84 mA
O2S12	V	HO2S voltage	Idle (after warm up): 0-1.0 V Deceleration fuel cut (accelerator pedal released from engine speed of 4, 000 RPM or more): Approx. 0 V
RPM	RPM	Engine speed	Displays engine speed
SHRTFT1	%	Fuel feedback correction amount estimated based on A/F sensor signal	Idle (after warm up): Approx. 0% Racing (engine speed is 2, 000 RPM): Approx. 1.56% Racing (engine speed is 4, 000 RPM): Approx. -4.68%
TP_REL	%	Throttle valve opening angle (relative value) with value at throttle valve fully close timing as the start point	Accelerator pedal released: Approx. 12% Accelerator pedal fully depressed: Approx. 82%
VSS	KPH, MPH	Vehicle speed	Displays vehicle speed

Diagnostic Procedure

NO. 12 LACK/LOSS OF POWER-ACCELERATION/CRUISE [SKYACTIV-G 2.0] - DIAGNOSTIC PROCEDURE

STEP	INSPECTION	RESULTS	ACTION
1	VERIFY IF MALFUNCTION INCLUDES ROUGH IDLING Does the engine idle rough?	Yes	Perform the symptom troubleshooting "NO. 8 ENGINE RUNS ROUGH/ROLLING IDLE". (See NO. 8 ENGINE RUNS ROUGH/ROLLING IDLE .)
1		No	Go to the next step.
2	VERIFY IF MALFUNCTION CAUSE IS OVERHEATING Access the ECT PID using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST .) CAUTION: While performing this step, always operate the vehicle in a safe and lawful manner. When the M-MDS is used to observe monitor system status while driving, be sure to have another technician with you, or record the data in the M-MDS using the PID/DATA MONITOR AND RECORD capturing function and inspect later. Is the ECT PID value less than 116 °C {241 °F} during driving?	Yes	Go to the next step.
2		No	Perform the symptom troubleshooting "NO. 17 COOLING SYSTEM CONCERNS-OVERHEATING". (See NO. 17 COOLING SYSTEM CONCERNS-OVERHEATING .)
3	CONFIRM DRIVE-BY-WIRE CONTROL SYSTEM OPERATES WITH BRAKE OVERRIDE SYSTEM Retrieve the PCM DTC using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST .) Is the DTC P2299:00 present?	Yes	Go to the applicable DTC inspection. (drive-by-wire control system operates with brake override system.) (See DTC P2299:00 [SKYACTIV-G 2.0] .)
3		No	Go to the next step.
4	VERIFY PCM DTC Retrieve any DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST .) Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [SKYACTIV-G 2.0] .)
4		No	Go to the next step.
5	VERIFY CURRENT INPUT SIGNAL STATUS CAUTION: While performing this step, always operate the vehicle in a safe and lawful manner. When the M-MDS is used to observe monitor system status while driving, be sure to have another technician with you, or record the data in the M-MDS using the PID/DATA MONITOR AND RECORD capturing function and inspect later. Access the following PIDs using the M-MDS: (See ON-BOARD DIAGNOSTIC TEST .) APP1 APP2 ECT FUEL_PRES IAT MAF MAP MAP_V TP_REL O2S11 O2S12 SHRTFT1 LONGFT1 Do the PIDs indicate the correct values under the trouble condition? (See PCM INSPECTION .)	Yes	Go to the next step.
5		No	APP1, APP2 PIDs are not as specified: Inspect the APP sensor. (See ACCELERATOR PEDAL POSITION (APP) SENSOR INSPECTION .) ECT PID is not as specified: Inspect the ECT sensor No. 1. (See ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION .) FUEL_PRES PID is not as specified: Inspect the fuel pressure sensor. (See FUEL PRESSURE SENSOR INSPECTION .) IAT PID is not as specified: Inspect the IAT sensor No. 1. (See INTAKE AIR TEMPERATURE (IAT) SENSOR INSPECTION .) MAF PID is not as specified: Inspect the MAF sensor. (See MASS AIR FLOW (MAF) SENSOR INSPECTION .) MAP, MAP_V PIDs are not as specified: Inspect the MAP sensor. (See MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR INSPECTION .) TP_REL PID is not as specified: Inspect the TP sensor. (See THROTTLE POSITION (TP) SENSOR INSPECTION .) O2S11, SHRTFT1, LONGFT1 PIDs are not as specified: Inspect the A/F sensor. (See AIR FUEL RATIO (A/F) SENSOR INSPECTION .) O2S12 PID is not as specified: Inspect the HO2S. (See HEATED OXYGEN SENSOR (HO2S) INSPECTION .) Repair or replace the malfunctioning part according to the inspection results. If the malfunction remains: Inspect communication error between TCM and PCM. Repair or replace the malfunctioning part according to the inspection results if necessary. Perform the "INTERMITTENT CONCERN TROUBLESHOOTING" procedure. (See INTERMITTENT CONCERN TROUBLESHOOTING .)
6	INSPECT DRIVE-BY-WIRE CONTROL SYSTEM OPERATION Perform the Electronic Control Throttle Operation Inspection. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION .) Does the drive-by-wire control system work properly?	Yes	Go to the next step.
6		No	Repair or replace the malfunctioning part according to the inspection results.
7	INSPECT FUEL INJECTOR OPERATION Perform the Fuel Injector Operation Inspection. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION .) Do the fuel injectors operate properly?	Yes	Go to the next step.
7		No	Repair or replace the malfunctioning part according to the inspection results.
8	INSPECT PURGE CONTROL SYSTEM OPERATION Perform the Purge Control System Inspection. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION .) Does the purge solenoid valve work properly?	Yes	Go to the next step.
8		No	Repair or replace the malfunctioning part according to the inspection results.
9	INSPECT FUEL SYSTEM FOR FUEL LEAKAGE Inspect for fuel leakage in the fuel line. Is there any leakage?	Yes	Repair or replace the malfunctioning part according to the inspection results.
9		No	Go to the next step.
10	INSPECT RELATED PART CONDITION Inspect the following: Fuel quality (proper octane, contamination, winter/summer blend) Air leakage or restriction in intake-air system Vacuum leakage Air cleaner restricted or dirty Brake dragging Tire air pressure CKP sensor and intake CMP sensor Installation condition (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION .) (See CAMSHAFT POSITION (CMP) SENSOR REMOVAL/INSTALLATION .) Damaged trigger wheel (intake camshaft) Exhaust CMP sensor Installation condition (See CAMSHAFT POSITION (CMP) SENSOR REMOVAL/INSTALLATION .) Damaged trigger wheel (exhaust camshaft) Is there any malfunction?	Yes	Service if necessary. Repeat this step.
10		No	Go to the next step.
11	INSPECT FUEL PRESSURE (HIGH-SIDE) Start the engine and warm it up completely. Access the FUEL_PRES PID using the M-MDS at idle. (See ON-BOARD DIAGNOSTIC TEST .) Is the FUEL_PRES PID value approx. 3 MPa {31 kgf/cm² , 435 psi}?	Yes	Go to Step 13.
11		No	Lower than 3 MPa {31 kgf/cm² , 435 psi}: Inspect the following: Fuel leakage at the fuel line and fuel injector Fuel pump Perform the Fuel Pump (Low-pressure Side) Operation Inspection. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION .) Fuel pressure sensor (See FUEL PRESSURE SENSOR INSPECTION .) High pressure fuel pump (See HIGH PRESSURE FUEL PUMP INSPECTION .) If there is any malfunction: Repair or replace the malfunctioning part according to the inspection results. If there is no malfunction: Go to the next step. Higher than 3 MPa {31 kgf/cm² , 435 psi}: Go to the next step.
12	INSPECT SPILL VALVE CONTROL SOLENOID VALVE CONTROL CIRCUIT FOR SHORT TO GROUND Switch the ignition off. Disconnect the high pressure fuel pump and PCM connectors. Inspect for continuity between high pressure fuel pump terminal A (wiring harness-side) and body ground. Is there continuity?	Yes	Refer to the wiring diagram and verify whether or not there is a common connector between high pressure fuel pump terminal A and PCM terminal 1EE. If there is a common connector: Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground. Repair or replace the malfunctioning part. If there is no common connector: Repair or replace the wiring harness which has a short to ground. If the malfunction remains: Replace the PCM. (damage to driver in PCM) (See PCM REMOVAL/INSTALLATION .)
12		No	Replace the high pressure fuel pump. (See HIGH PRESSURE FUEL PUMP REMOVAL/INSTALLATION .)
13	INSPECT FUEL PRESSURE (LOW-SIDE) Connect the fuel pressure gauge between fuel pump and high pressure fuel pump. Measure the low side fuel pressure. (See FUEL LINE PRESSURE INSPECTION .) Is the low side fuel pressure within specification? Specification: 425-505 kPa {4.34-5.14 kgf/cm² , 61.7-73.2 psi}	Yes	Go to the next step.
13		No	Inspect the following: Fuel line restriction Fuel filter clogged If there is any malfunction: Repair or replace the malfunctioning part according to the inspection results. If there is no malfunction: Replace the fuel pump unit. (See FUEL PUMP UNIT REMOVAL/INSTALLATION .)
14	INSPECT THROTTLE BODY FOR CLOGGING Visually inspect the throttle valve. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .) Is any foreign material adhering around the throttle valve?	Yes	Clean the throttle valve.
14		No	Go to the next step.
15	INSPECT ENGINE COMPRESSION Measure the compression pressure for each cylinder. (See COMPRESSION INSPECTION .) Are compression pressures within specification?	Yes	Go to Step 21.
15		No	Go to the next step.
16	INSPECT ELECTRIC VARIABLE VALVE TIMING DRIVER Inspect the electric variable valve timing driver. (See ELECTRIC VARIABLE VALVE TIMING MOTOR/DRIVER INSPECTION .) Is there any malfunction?	Yes	Replace the electric variable valve timing motor/driver. (See ELECTRIC VARIABLE VALVE TIMING MOTOR/DRIVER REMOVAL/INSTALLATION .)
16		No	Go to the next step.
17	INSPECT ELECTRIC VARIABLE VALVE TIMING MOTOR Inspect the electric variable valve timing motor. (See ELECTRIC VARIABLE VALVE TIMING MOTOR/DRIVER INSPECTION .) Is there any malfunction?	Yes	Replace the electric variable valve timing motor/driver. (See ELECTRIC VARIABLE VALVE TIMING MOTOR/DRIVER REMOVAL/INSTALLATION .)
17		No	Go to the next step.
18	INSPECT ELECTRIC VARIABLE VALVE TIMING ACTUATOR Inspect the electric variable valve timing actuator. (See ELECTRIC VARIABLE VALVE TIMING ACTUATOR INSPECTION .) Is there any malfunction?	Yes	Replace the electric variable valve timing actuator. (See ELECTRIC VARIABLE VALVE TIMING ACTUATOR, HYDRAULIC VARIABLE VALVE TIMING ACTUATOR REMOVAL/INSTALLATION .)
18		No	Go to the next step.
19	INSPECT HYDRAULIC VARIABLE VALVE TIMING CONTROL SYSTEM OPERATION Perform the Hydraulic Variable Valve Timing Control System Operation Inspection. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION .) Is there any malfunction?	Yes	Repair or replace the malfunctioning part according to the inspection results.
19		No	Go to the next step.
20	INSPECT FOR MALFUNCTION DUE TO DEVIATED VALVE TIMING Inspect the valve timing (timing chain installation condition). (See TIMING CHAIN REMOVAL/INSTALLATION .) Is the valve timing normal?	Yes	Inspect for the following engine internal parts: Cylinder Piston ring Intake valve Exhaust valve Such as cylinder head gasket If there is any malfunction: Repair or replace the malfunctioning part according to the inspection results.
20		No	Adjust the valve timing to the correct timing.
21	VERIFY SPARK PLUG CONDITION Inspect the spark plug condition. (See SPARK PLUG INSPECTION .) Is the spark plug wet, covered with carbon or grayish white?	Yes	Spark plug is wet or covered with carbon: Perform the Spark Test. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION .) Repair or replace the malfunctioning part according to the inspection results. Spark plug is grayish white: Inspect the fuel injector for restriction. Repair or replace the malfunctioning part according to the inspection results.
21		No	Go to the next step.
22	INSPECT EXHAUST SYSTEM FOR RESTRICTION Inspect for restriction in the exhaust system and the TWC. Is there any restriction?	Yes	Repair or replace the malfunctioning part according to the inspection results.
22		No	Go to the next step.
23	INSPECT IF MALFUNCTION CAUSE IS PCV VALVE OR INJECTOR DRIVER (PCM INTEGRATED) Inspect the PCV valve. (See POSITIVE CRANKCASE VENTILATION (PCV) VALVE INSPECTION .) Is there any malfunction?	Yes	Replace the PCV valve. (See POSITIVE CRANKCASE VENTILATION (PCV) VALVE REMOVAL/INSTALLATION .)
23		No	Injector driver malfunction. Replace the PCM. (See PCM REMOVAL/INSTALLATION .) If the problem remains, overhaul the engine.
24	Verify the test results. If normal, return to the diagnostic index to service any additional symptoms. (See SYMPTOM DIAGNOSTIC INDEX .) If the malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform repair or diagnosis. If the vehicle is repaired, troubleshooting is completed. If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later calibration is available. Retest.