What is dtc p1345 code - Autel Computers & Internet

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Document ID: 549463
DTC P1345 Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation
Incorrectly installed distributor--one tooth off in either advance or retard positions

Definition of Diagnostic Trouble Code P1345 Audi: Ignition Coil Power Output Stage 3 Short to Ground BMW: Misfire Cylinder 2 with Fuel Cut-Off Buick: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Cadillac: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Chevrolet: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Ford: Cylinder Discrimination Signal (Signal From Camshaft Position Sensor) GMC: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Isuzu: Crankshaft Position - Camshaft Position Correlation Kia: No SGC Signal (1.6L) Lexus: Variable Valve Timing / CMP Sensor Range / Performance Lincoln: Cylinder Discrimination Signal (Signal From Camshaft Position Sensor) Mazda: Cylinder Discrimination Signal (from CMP sensor) Mercury: Cylinder Discrimination Signal (Signal From Camshaft Position Sensor) Oldsmobile: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Pontiac: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Saturn: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Toyota: Variable Valve Timing / CMP Sensor Range / Performance Volkswagen: Ignition Coil Power Output Stage 3 Short to Ground

The primary intent of this code is to detect slipped camshaft timing. Have you checked the camshaft timing? Your symptoms indicate you are a tooth off.

error code p1345 ( gm and chevy) = camshaft and crankshaft position error code. a tooth or timing chain has excessive wears.
BMW error code P1345 = cylinder 2 misfires, fuel cut off.
all of it, cause the engine lose power.

Do you mean Diagnostic Test Code (DTC) P1345 ?This DTC is a "Manufacturer Specific" code that is defined by GM as "Camshaft/Crankshaft Correlation Error".

It is basically telling you that your Cam/Crank timing is not within specifications.

Possible causes are:

> Improperly installed distributor assembly
> Badly worn distributor shaft or bushings
> Worn timing components (chain, gears, etc.)

Proper diagnosis is required to diagnose the actual condition that is causing this code. If any timing components are replaced, a scan tool capable of reading live computer data is required to check the cam/crank offset PID and make adjustments as necessary.

The specification for Cam/Crank offset is (Zero) 0 +/- 2 and must be checked with the engine running at 1500 RPM.

DTC P1345 - Crankshaft Position (CKP) - Camshaft Position (CMP) Correlation
The most likely cause if you have replaced the cam position sensor is the distributor is out of time. You MUST use a scan tool with a data stream capability to properly set the timing on this engine. Access the data stream and find the cam ****** offset reading. It should be 0 plus or minus 2 at 1500 RPM. If not within spec, then the distributor is out of time. loosen the hold down bolt and rotate the distributor until the reading comes into spec.

NOTE: the value will not change on the scan tool until the engine is reved above 1500 RPM so make an adjustment and rev the engine. This is the only way to accurately set the timing on these engines.

If you need additional details about action taken when the DTC sets (PDF format document), contact us in the previous fault code link.

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DTC P1345 CAMSHAFT TO CRANKSHAFT POSITION CORRELATION MALFUNCTION CONDITIONS.CHECK CMP SENSOR MAKE SURE ITS NOT LOOSE CAUSING VARIATION IN THE SENSOR SIGNAL EXCESSIVE FREE PLAY IN THE TIMING CHAIN AND GEAR ASSEMBLY.INCORRECTLY INSTALLED DISTRIBUTOR 1 TOOTH OFF IN EITHER ADVANCE OR ****** POSITIONS. CODE PO300 MULTIPLE ENGINE MISFIRE DETECTED CONDITIONS.THIS CODE WILL SHOW UP WHEN CODE DTC P1345 SHOW UP.YOUR PROBLEMS IS IN THE CMP AND CKP SENSOR.THEY WILL CAUSE MISFIRE IF TIMING CHAIN WORN WITH A LOT OF SLACK IN IT.CAUSING TIMING CHAIN TO SLIP ONE GEAR THROWING OFF TIME.THIS PROBLEM IS A DEALERSHIP FIX.THEY CAN CHECK TO SEE IF TIMING CHAIN HAS SLIPPED.THEY ALSO CAN CHECK VARIATIONS FROM CMP SENSOR AND CKP SENSOR.

You may have the distributer a tooth off and the computer can not calibrate the timing properly. Set the engine at (top-dead center) at the crank harmonic balancer and remove dist-cap to see if the "DTC" is off. If so, when distributer is out, you will have to use a longer flat head screw driver to reach down in the intake and turn the oil pump shaft to advance it for the re-installation of the distributer as it will turn when threading into the cam gear. Hope this helps.