I have a 92 Lumina 3.1 sedan that keeps stalling. Have replaced ignition module module, crankshaft position sensor, repaired wiring from crankshaft sensor. Any ideas?

DTC P1374
The 3X reference signal is produced by the ignition control (IC) module. The IC module calculates the 3X reference signal by dividing the crankshaft position (CKP) sensor 7X pulses by 2 when the engine is running and when the CKP synchronizing pulses are being received. The powertrain control module (PCM) uses the 3X reference signal to calculate the engine RPM and the crankshaft position at engine speeds above 1600±150 RPM. The PCM also uses these pulses to initiate injector pulses. The PCM compares the 3X reference pulses to the 24X CKP pulses and the camshaft position (CMP) sensor pulses. If the PCM receives an incorrect number of pulses on the 3X circuit, a DTC P1374 will set and the PCM will use the 24X CKP reference circuit for fuel and ignition control. The engine will continue to start and run using only the 24X CKP and the camshaft position sensor signals.

Diagnostic Aids
• DTC P1374 can be caused by secondary components leaking high voltage into the IC module.
• Inspect for the following conditions:
- Incorrect harness routing near secondary ignition components
- Ignition coil arcing to wiring harness or IC module--Inspect the ignition coils for the following conditions:
• Cracks
• Carbon tracking
• Other signs of damage
- Ignition coil arcing to wiring harness or IC module--Inspect the ignition coils for the following conditions:
- Secondary ignition wires arcing to wiring harness
I would sugest you take your vehicle to a qualified repair shop an have it diagnosed , but i can tell that's not your way , is it . We diagnose not replace part's .
Replace the IC module. Refer to Ignition Control Module Replacement .
Did you complete the replacement?
Go to Step 11
--
10
Replace the PCM. Refer to Powertrain Control Module Replacement .
Did you complete the replacement?
Go to Step 11
If it starts an runs it's not the crank sensor behind the crankshaft pulley .

What's an SVG?

Scalable Vector Graphics, SVG for short, is an XML-based format for 2D images, allowing them to be viewed both static and interactive. This makes us able to provide you with a fully interactive image full of links to related diagrams and documents straight from the OEM.

Click on any link within the document and you will be able to narrow your focus on a particular component, or view a related portion of a wiring diagram. Even more, these documents are fully zoomable and printable.

Not able to view SVGs? Click here to download the Adobe SVG viewer P0016-CRANKSHAFT / CAMSHAFT TIMING MISALIGNMENT

For a complete wiring diagram Refer to the Wiring Information.

1. When Monitored: Engine cranking and Engine running
   
2. Set Condition: Powertrain Control Module detects an error when the camshaft position is out of phase with the crankshaft position. One Trip Fault. Three good trips to turn off the MIL.
   

Possible Causes

ERRATIC CAM POSITION SENSOR SIGNAL CAMSHAFT POSITION SENSOR TONE WHEEL/PULSE RING ERRATIC CRANKSHAFT POSITION SENSOR SIGNAL CRANKSHAFT POSITION SENSOR TONE WHEEL/PULSE RING CAMSHAFT POSITION SENSOR CRANKSHAFT POSITION SENSOR

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

1.ACTIVE DTC
WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. 1. With the scan tool clear the DTC(s). 2. Start the engine and run until operating temp is reached. (Closed Loop) 3. If the DTC does not reset it may be necessary to test drive the vehicle.

Does the P0016 return?

Yes

1. Go To 2

No

1. Refer to the INTERMITTENT CONDITION Diagnostic Procedure.
2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure)
   

2.CHECKING THE CMP SIGNAL WITH A LAB SCOPE

1. With a lab scope, backprobe the (K44) CMP Signal circuit at the CMP Sensor harness connector. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. 2. Start the engine. 3. Observe the lab scope screen.

Are there any irregular or missing signals?

Yes

1. Go To 3

No

1. Go To 6
   

3.CMP WIRE HARNESS INSPECTION
1. Turn the ignition off. 2. Visually inspect the related wire harness. Look for any chafed, pierced, pinched, or partially broken wires. 3. Visually inspect the related wire harness connectors. Look for broken, bent, pushed out, or corroded terminals. 4. Make sure the Crankshaft Position Sensor and the Camshaft Position Sensor are properly installed and the mounting bolt(s) are torqued to their proper specification. 5. Refer to any TSBs that may apply.

Were any of the above conditions present?

Yes

1. Repair as necessary.
2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure)

No

1. Go To 4
   

4.TONE WHEEL/PULSE RING INSPECTION
1. Remove the Camshaft Position Sensor. 2. Inspect the Tone Wheel/Pulse Ring for damage, foreign material, or excessive movement.

Were any problems found?

Yes

1. Repair or replace the Tone Wheel/Pulse Ring as necessary.
2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure)

No

1. Go To 5
   

5.CAMSHAFT POSITION SENSOR


If there are no possible causes remaining, view repair.

Repair

1. Replace the Camshaft Position Sensor.
2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure)
   

6.ERRATIC CMP SIGNAL
1. Turn the ignition off. 2. Remove the lab scope probe. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. 3. Ignition on, engine not running. 4. With scan tool, erase DTCs. 5. Start the engine. 6. Gently tap on and wiggle the Cam Position Sensor. 7. Ignition on, engine not running. 8. Inspect the Sensor connector and harness connector, and inspect the PCM connector and harness connector for loose, bent, corroded, or pushed out pins/terminals. 9. Inspect the related wire harness and the splices in the CMP circuit.

Does the P0016 return?

Yes

1. Repair the wiring/connector concerns as needed or replace the Camshaft Position Sensor.
2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure)

No

1. Go To 7
   

7.CHECKING THE CKP SIGNAL WITH A LAB SCOPE

1. Turn the ignition off. 2. With a lab scope, backprobe the (K24) CKP Signal circuit at the CKP harness connector. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. 3. Start the engine. 4. Observe the lab scope screen.

Are there any irregular or missing signals?

Yes

1. Go To 8

No

1. Go To 10
   

8.CKP WIRE HARNESS INSPECTION
1. Turn the ignition off. 2. Visually inspect the related wire harness. Look for any chafed, pierced, pinched, or partially broken wires. 3. Visually inspect the related wire harness connectors. Look for broken, bent, pushed out, or corroded terminals. 4. Make sure the Crankshaft Position Sensor and the Camshaft Position Sensor are properly installed and the mounting bolt(s) are torqued to their proper specification. 5. Refer to any TSBs that may apply.

Were any of the above conditions present?

Yes

1. Repair as necessary.
2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure)

No

1. Go To 9
   

9.TONE WHEEL/FLEX PLATE INSPECTION
1. Remove the Crankshaft Position Sensor. 2. Inspect the Tone Wheel/Flex Plate slots for damage, foreign material, or excessive movement.

Were any problems found?

Yes

1. Repair or replace the Tone Wheel/Flex Plate as necessary.
2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure)

No

1. Replace the Crankshaft Position Sensor.
2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure)
   

10.ERRATIC CKP SIGNAL


NOTE: The conditions that set this DTC are not present at this time. The following test may help in identifying the intermittent condition. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. 1. Start the engine. 2. Gently tap on and wiggle the Crank Position Sensor. 3. Turn the ignition off. 4. Inspect the Sensor connector and harness connector, and inspect the PCM connector and harness connector for loose, bent, corroded, or pushed out pins/terminals. 5. Inspect the related wire harness and the splices in the CKP circuits.

Were any problems found?

Yes

1. Repair the wiring/connector concerns as needed or replace the Crankshaft Position Sensor.
2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure)

No

1. Test Complete.
   

Portions of materials contained herein are sourced from Chrysler Corporation.

Copyright 2007 - 2013 Service Repair Solutions, Inc. Print Image

Hi mate start at the easiest point which will be to check your EARTH to make sure everything is earthed.

The 1991 was a mid-sized sedan created by Chevrolet in Ontario, Canada. The Lumina is equipped with a crankshaft sensor that detects the position of the vehicle's crankshaft, sending data to the sedan's on-board computer. Having the crankshaft sensor allows the Lumina to make necessary adjustments for the engine to work optimally.

http://www.xcardiag.com/wholesale/vagcom-new-version-release.html

One of the most common causes would be a faulty crankshaft position sensor. When the sensor malfunctions, it overheats and stops sending a signal to the computer. If the sensor stops sending a signal to the ignition module, it will cause the car to shut off. Replacing the crankshaft position sensor should cure this problem. There are a lot of other possibilities such as a faulty ignition control module. When the car stalls suddenly while driving it is usually due to loss of ignition spark. Clean all the fuses in the main fuse box. Some of the fuses provide power to the ignition system. If you have poor fuse connections it can cause the problem also. If you need more help on how to repair your crankshaft position sensor I would suggest checking out this sites HowTo section http://www.buyautoparts.com/howto/

I would check for a short somewhere in the wire harness or check the bell for true on crank balancer make sure its not rubbing pickup

That would be a symptom of a crankshaft postion sensor going bad . Shorting out when heated up . But unfortunately thier are other sensors that can cause the same problem . Plus the ICM - ignition control module could cause that problem as well . OH yea , almost forgot you vehicle has two crankshaft position sensors . You best bet , take it to a qualified repair shop that has the diagnostic tools to trouble shoot the problem .
The electronic ignition (EI) system consists of the following components and wiring circuits:
• The ignition control (IC) module
• The ignition coils
• The powertrain control module (PCM)
• The 24X crankshaft position (CKP) sensor
• The 7X CKP sensor
• The camshaft position (CMP) sensor
The EI wiring circuits listed here use the following service common names. Between the IC module and the PCM:
• Low resolution engine speed signal
• IC timing control
• IC timing signal
• Low reference
Between the 7X CKP sensor and the IC module:
• CKP sensor (1) signal
• Low reference
Between the 24X CKP sensor and the PCM:
• Medium resolution engine speed signal
• 12-volt reference
• Low reference
Between the CMP and the PCM:
• CMP sensor signal
• Low reference
• 12-volt reference
The IC module also receives power and chassis ground through the following circuits:
• Ignition (1) voltage
• Ground

When it stalls check for spark , pull spark plug wires off the same coil an crank the engine . Is thier spark jumping from one coil tower to the other ? Make sure it's a lack of spark problem .

You could have a fuel pump issue,the only way to verify that is to check the pressure when it acts up.Also you may have a ignition problem,some of the possible causes could be crankshaft position sensor,camshaft position sensor,ignition control module.A easy way to verify ignition issue is to use a spark plug tester after the vehicle has stalled.

. Have it checked for a trouble code. It seems like a sensor problem. ( Idle position , crankshaft position, camshaft position sensors could be bad. Also the EGR valve could be bad. with a caode you can narrow it down a bit.

On your 1992 Chevrolet Lumina-Sedan/Coupe 3.1L MFI OHV , the Crankshaft Position Sensor is located: Under hood, passenger side, lower engine area, passenger side of engine block, mounted front of crankshaft pulley