NO.6 CRANKS NORMALLY BUT WILL NOT START [MZR-CD (RF Turbo)]


6	CRANKS NORMALLY BUT WILL NOT START
DESCRIPTION	• Starter cranks engine at normal speed but engine will not run. • Refer to symptom troubleshooting "No.5 Engine stalls" if this symptom appears after engine stall. • Fuel is in fuel tank. • Battery is in normal condition.
POSSIBLE CAUSE	• Poor fuel quality • Intake-air system restriction • Fuel line restriction • EGR system malfunction • Glow system malfunction • Inadequate fuel pressure • Fuel pressure sensor or related circuit malfunction • Suction control valve malfunction (built-in supply pump) • Fuel pressure limiter malfunction (built-in common rail) • Fuel leakage • Fuel filter clogging • Incorrect fuel injection timing • Erratic signal from CKP sensor • Erratic signal from CMP sensor • V-reference supply circuit malfunction • ECT sensor or related circuit malfunction • Accelerator position sensor or related circuit malfunction • MAF/IAT sensor or related circuit malfunction • Supply pump malfunction • Fuel injector malfunction • Immobilizer system and/or circuit malfunction • Low engine compression • Improper valve timing • IDM or related circuit malfunction • PCM control repay malfunction Warning The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: • Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. • Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual.


STEP	INSPECTION	RESULTS	ACTION
1	Note • The following test should be performed for vehicles with immobilizer system. Go to Step 12 for vehicles without immobilizer system. Connect WDS or equivalent to DLC-2. Do following conditions appear? • Engine is not completely started. • DTC P1624 is displayed.	Yes	Both conditions appear: Go to Step4.
1		No	Either condition or some other condition appears: Go to next step.
2	Does engine stall approx. 2 s after engine is started?	Yes	Go to next step.
2	Does engine stall approx. 2 s after engine is started?	No	Immobilizer system is okay. Return to Step 12.
3	Is immobilizer unit connector securely connected to immobilizer unit?	Yes	Go to next step.
3		No	Connect immobilizer unit connector securely. Return to Step 2.
4	Does security light flash and indicate any of following immobilizer system DTCs? DTC 02, 03, 11, 21	Yes	Go to "ON-BOARD DIAGNOSTIC FUNCTION" of immobilizer system.
4		No	Go to next step.
5	Does security light illuminate?	Yes	Go to Step 8.
5	Does security light illuminate?	No	Go to next step.
6	Does security light flash and indicate either of following immobilizer system DTCs more than 135 s after engine switch is turned to ON? DTC 24, 30	Yes	Go to "ON-BOARD DIAGNOSTIC FUNCTION" of immobilizer system.
6		No	Go to next step.
7	Turn engine switch to OFF. Disconnect immobilizer unit connector. Connect jumper wire between immobilizer unit connector terminal M and GND. Turn engine switch to ON. Does security light illuminate?	Yes	Reconnect immobilizer unit connector. Go to next step.
7		No	Inspect for open circuit between immobilizer unit connector terminal M and instrument cluster. If okay, inspect security light bulb. Repair or replace if necessary. Reconnect immobilizer unit connector, then return to Step 4.
8	Connect WDS or equivalent to DLC-2 and retrieve DTC. Is any following DTCs displayed? DTC P1602, P1603, P1604, P1621, P1622, P1624	Yes	Go to appropriate DTC test.
8		No	Go to next step.
9	Disconnect accelerator position sensor connector. Inspect continuity between GND terminal at accelerator position sensor vehicle harness connector and body GND. Is there continuity?	Yes	Go to next step.
9		No	Access PCM connector. Inspect for continuity between PCM connector 65 and 85 terminals and body GND. Repair or replace as necessary.
10	Turn engine switch to ON. Access VPWR PID. Is VPWR PID okay? VPWR PID Battery positive voltage	Yes	Go to next step.
10		No	Repair or replace wiring harness.
11	Disconnect immobilizer unit connector. Turn engine switch to ON. Is there battery voltage at immobilizer unit harness-side terminal J?	Yes	Inspect for following: • Open or short circuit between immobilizer unit terminal A and PCM terminal 54
11		No	Go to next step.
12	Inspect for following: • Fuel quality (e.g.: include water contamination, winter/summer blend) • Fuel line/fuel filter clogging • Cracks on intake-air system parts • Intake-air system restriction Are all items okay?	Yes	Go to next step.
12		No	Service as necessary. Repeat Step 12.
13	Note • Ignore DTC P0122, P0123, P0222 or P0223 while performing this test. Disconnect accelerator position sensor connector. Measure voltage at accelerator position sensor connector VREF terminal (terminal D) with engine switch ON. Specification 4.5-5.5 V Is voltage okay?	Yes	Go to next step.
13		No	Go to symptom troubleshooting "NO.26 CONSTANT VOLTAGE".
14	Connect WDS or equivalent to DLC-2. Turn engine switch to ON. Retrieve any DTC. Is DTC displayed?	Yes	DTC is displayed: Go to appropriate DTC test. Communication error message is displayed: Inspect for following: • Open circuit between PCM control relay and PCM terminal 53 or 79 • Open circuit PCM control relay and PCM terminal 69 • PCM control relay stuck open • Open or poor GND circuit (PCM terminal 65, 85, 103 or 104) • Poor connection vehicle body GND
14		No	No DTC is displayed: Go to next step.
15	Inspect glow system operation. (See RELAY INSPECTION) Is glow system operation normal?	Yes	Go to next step.
15		No	Repair or replace malfunctioning part according to glow system operation results.
16	Inspect for fuel leakage from fuel pipe. Is any fuel leakage found on fuel pipe?	Yes	Repair or replace as necessary.
16		No	Go to next step.
17	Visually inspect CKP sensor and teeth of pulse wheel. Are CKP sensor and teeth of pulse wheel okay?	Yes	Go to next step.
17		No	Replace malfunctioning parts.
18	Measure gap between CKP sensor and teeth of pulse wheel. Specification 1.5-2.5 mm {0.059-0.098 in} Is gap within specification?	Yes	Go to next step.
18		No	Adjust CKP sensor position.
19	Visually inspect CMP sensor and teeth of pulse wheel. Are CMP sensor and teeth of pulse wheel okay?	Yes	Inspect following PIDs: (See PCM INSPECTION [MZR-CD (RF Turbo)].) • ECT • IAT • MAF • RPM If PID value is not as specified, repair or replace malfunctioning parts. If PID value is okay, go to next step.
19		No	Replace malfunctioning parts.
20	Inspect fuel pressure sensor. (See FUEL PRESSURE SENSOR INSPECTION [MZR-CD (RF Turbo)].) Is fuel pressure okay?	Yes	Go to next step.
20		No	Replace common rail.
21	Inspect suction control valve. (See SUCTION CONTROL VALVE INSPECTION [MZR-CD (RF Turbo)].) Is suction control valve okay?	Yes	Go to next step.
21		No	Repair supply pump. (See SUPPLY PUMP INSPECTION [MZR-CD (RF Turbo)].)
22	Is engine compression correct? (See COMPRESSION INSPECTION [MZR-CD (RF Turbo)].)	Yes	Go to next step.
22		No	Inspect for following: • Damaged valve seat • Worn valve stem and valve guide • Worn or stuck piston ring • Worn piston, piston ring or cylinder • Improper valve timing Service as necessary.
23	Inspect fuel injector. (See FUEL INJECTOR INSPECTION [MZR-CD (RF Turbo)].) Is fuel injector okay?	Yes	Go to next step.
23		No	Repair or replace as necessary.
24	Inspect EGR system operation. Is EGR system operation normal?	Yes	Remove and inspect supply pump and common rail.
24		No	Repair or replace malfunctioning part according to EGR system operation results.
25	Verify test results. • If okay, return to diagnostic index to service any additional symptoms. • If malfunction remains, replace PCM. (See PCM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)