Will not start

Good afternoon.

What was the code number?

When you crank the engine, does the RPM gauge move up a little?.

The engine needs three things. compression, spark and fuel pressure. I would check these to see what is missing.

Roy

https://www.2carpros.com/articles/how-to-test-engine-compression

https://www.2carpros.com/articles/car-cranks-but-wont-start

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Okay. Need to check fuel pressure and spark.

Code 342 description and possibilities.

Roy

Component Description
The Camshaft Position Sensor (CMPS) is a sensor that detects the compression TDC of the NO. 1 cylinder. The CMPS consists of a hall type sensor and a target on the end of the intake camshaft. When the target triggers the sensor, the sensor voltage is 5V. If not, the sensor voltage is 0V. These CMPS signal is sent to the ECM and the ECM uses the CMPS signal for synchronizing the firing of sequential fuel injectors.

Component Inspection
1. Check CMPS
(1)Connect CMPS and ECM connector.
(2)Engine "ON" & monitor the signal waveform of CMPS on scantool.
Specification : Check whether the waveform is synchronized with Crankshaft Position Sensor or not.

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(3)Is the signal waveform normal?

YES
- Substitute with a known - good ECM and check for proper operation.
If the problem is corrected, replace ECM and go to "Verification of Vehicle Repair" procedure.

NO
- Substitute with a known - good CKPS and check for proper operation.
If the problem is corrected, replace CKPS and go to "Verification of Vehicle Repair" procedure.

Monitor Scantool Data
1. Connect scantool and Engine "ON"

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2. Monitor "Signal waveform of CMPS with scantool.
3. Is the measured signal waveform of CMPS displayed correctly?

YES
- Fault is intermittent caused by poor contact in the sensor's and/or ECM's connector or was repaired and ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification vehicle Repair" procedure.

NO
- Go to "W/Harness Inspection" procedure.

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Schematic Diagram

Verification of Vehicle Repair

After a repair, it is essential to verify that the fault has been corrected.
1. Monitor and record the Freeze Frame Data for the Diagnostic Trouble Code(DTC) which has been diagnosed.
2. Using a Scantool, Clear the DTCs.
3. Operate the vehicle within conditions noted in the freeze frame data or enable conditions.
4. Monitor that all readiness test have been verified as " Complete "
5. Are any DTCs present?

YES
- Go to the applicable troubleshooting procedure.

NO
- System is performing to specification at this time.

Terminal and Connector Inspection
1. Many malfunctions in the electrical system are caused by poor harness and terminals.
Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found?

YES
- Repair as necessary and go to "Verification of Vehicle Repair" procedure.

NO
- Go to " Power Circuit Inspection " procedure.

Power Supply Circuit Inspection
1. Check Power Supply
(1)Ignition "OFF"
(2)Disconnect CMPS connector.
(3)Ignition " ON " & Engine "OFF"