P1345 Code on a '97 Chevy 5.7 in a Silverado

just a couple thoughts. Injector fuse and relay(does fuse and relay have power to and from them). My understanding is sometime Anti theft will shut down injection pulse so car can not be run. Maybe even timing chain broke. I assume there is no trouble code.

the word correlation means relationship between two or more items . In this case it means that when the crank shaft sensor is triggered then the camshaft sensor has to be in agreement that the position of the piston and valves is in the right position to allow spark and fuel.. there are air gaps between each sensor and the rotor that triggers them and if this is not correct or there is dirt in the air gap ( the sensors may be a bit advanced or retarded in the fitment holes) then this relationship of positions is being interfered with and so you get the fault code. If after rechecking the fitment of the sensors and using a scanner to put the engine light off ,you still have a problem ,I would suggest that you find an accredited shop the does a lot of work on your make of car to assist with the fault.

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.

Hi there:

The camshaft position sensor is an integral part of the distributor and not serviceable.


The crankshaft position sensor reads the rotation of the crankshaft which the computer translates to determine engine timing sequences. The computer uses this reading, in conjunction with the camshaft position sensor, to determine proper fuel injection and ignition timing.



Fig. 3: Exploded view of the crankshaft position sensor mounting


Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.


Thank you for using FixYa, have a nice day.

• P0344 means that the Camshaft Position Sensor is having intermittent disruption.
  

• Check the connector real well and the wires for breaks, cracks, bulging wires etc.
  

• I think that aftermarket sensors are worthless to be honest. I recommend OEM sensor only because aftermarkets often don't work. So if you bought a CAM sensor at your local parts store then I would take it back and order from Chrysler.
  

• A chipped tooth on your CAM sensor can cause this code as well because the sensor reads rotation. A missing tooth of the CAM will give an in the rotation of the CAM.
  

• So the first this I would do is check the crankshaft position sensor as a fault from there can effect the CAM sensor too.
  

• The crankshaft position sensor is in the engine block behind the alternator / just above the oil filter. See diagram below. Clean it real well and check the wiring.
  

• Also make sure you clear the codes after the repair of they will remain. A CAM light does not usually just go away after fixing the reason for that code.
  

• Now check the wiring and connector to the CAM sensor reall well and repair as necessary. Now clear the codes and see where you stand. If that light comes back and it is the same code then get an OEM CAM sensor and clear the codes again.
  

• If that light comes back again then you will need to pull the timing cover and inspect the CAM itself for missing test.
  

• If you have any questions please feel free to ask.
  

• If you are satisfied with my help then please do leave a comment so others know of my quality work.
  

• Crankshaft location diagram.
• Pull the connector and the mounting bolt[s] to remove.

• Hope this helps.

Regards,Tony

The timing belt diagrams are listed in detail with figures and procedure to remove them.

REPLACING TIMING BELT ON A 2003 HYUNDAI TIBURON 2.7L V6

1. Remove passenger side headlight via the 3 10mm screws holding it in place and disconnect the turn signal and main harness

2. Remove passenger side tire

3. Remove the splash guard via 2 10mm screws at the top of the guard

4. Remove the 2 17mm bolts and 2 17mm nuts from motor mount bar

5. You may have to separate the mount bar from the motor via either a chisel or flathead screwdriver and a hammer ( support engine via a jack and a piece of plywood under oil pan )

6. Use a 3/8 ratchet ( or a long breaker bar would work better ) to remove the serpentine belt ( remember the route ). Disconnect the power steering hose from the pump and secure back with a zip tie. Remove the power steering pulley with a pry bar and 19mm socket.


7. Hand turn the crankshaft via a 22mm socket to TDC ( top dead center, marked on lower timing belt cover )

8. Remove the serpentine belt tensioner via 2 12mm bolts on each side

9. Remove the upper timing belt cover via 7 10mm screws

10. Remove crankshaft pulley ( 22mm ) with an air impact gun ( an electric one will work too )

11. Remove lower timing belt cover via 4 more 10mm screws





12. Remove the motor mount from the block via 3 14mm bolts and 2 12mm bolts ( there is a 12mm holding the oil dipstick bracket towards the front of the car )

13. Remove the auto tensioner via 2 12mm bolts



14. Remove the timing belt


15. Make sure your timing markings are correct...

There is one marking on each cam gear and on the heads ( head markings are small, look closely...try wiping the edge of the head down with a rag and some brake cleaner to bring it out more ) They are also pictured in last pic.

When the crankshaft is in the TDC position, the cam gear markings should both line up at the same time with the head markings

Adjust if necessary, use a 17mm socket to turn cam gears to correct position

16. Install new timing belt ( as you install it, make sure to keep a little tension on the belt as you route it )

17. Install new auto tensioner and pull pin

18. Install just the lower timing belt cover

19. Install the crankshaft pulley

20. Hand turn the crankshaft atleast 5 times to verify the timing markings are lining up properly ( all should line up at the same time when the crankshaft pulley mark is in the TDC position )

21. Remove crankshaft pulley

22. Remove lower timing belt cover

23. Reverse steps 12 - 1

You can refer the videos below for further assistance.Your valuable feedback would be appreciated.Thanks for choosing Fixya.

what are the code numbers so i can trouble shoot

The crank shaft sensor will be fitted over the front crankshaft pulley or where it can read the electronic signals generated from the flywheel....The way it works is to receive a magnetically generated signal which is transmitted to the management computer system....It basically indicates when the piston is at the ignition point of the engines cycle...As we're dealing with a four stroke engine, remember that the crankshaft makes four revolutions to two of the camshaft....The cam will give its own signal via its own sensor....Both are used to control the spark and firing of the plugs in the correct sequence and at the correct time....If the scan tool said the crank sensor I'd think that's the fault and stick to that....
Regards Johngee10

I'm not a Jag expert, but error code 17 is:
P0017 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B)
Additional infomation on and cause and possible solutions are here:
http://www.obd-codes.com/p0016
Basically, it looks like you have timing issue. Could be the cam or crank sensor or the timing belt.
The P0017 code would imply that you have at least two cam sensors (V6 or V8). The computer thinks that the B sensor cam is out of time with the other cam and the crankshaft. Depending on the cost and location, you might try changing the cam sensor first. The cost to check or replace the timing belt is probably going to be painful.

Crankshaft and Camshaft Position Sensors Camshaft Position Sensor Engine timing is determined from the relationship between the crankshaft and camshaft. This relationship is maintained by a timing chain or timing belt. The Engine Management System does not control engine timing but it does monitor the relative position and speed of these shafts by monitoring signals generated by sensors. The Engine Management System (EMS) uses signals generated by the camshaft position sensor to synchronize fuel injection to the valve sequence and for the on-board diagnostic procedure for misfire detection. The EMS energizes the injector at or near the time the intake valve opens. For misfire diagnosis, the EMS compares the number of camshaft sensor reference pulses and the number of crankshaft position sensor reference pulses received. If the EMS receives an incorrect number of pulses Diagnostic Trouble Codes (DTC’s) should be stored in the EMS.
If the camshaft position sensor or circuit is faulty most engines will start. Some engine management systems will then default to a pre-programmed injector firing sequence. All injectors may be energized simultaneously or all of the injectors on one bank may be energized at the same time. If the CMP data is required for misfire detection and reliable CMP data is not present misfire detection would probably be suspended.
Related Symptoms The following symptoms can be caused by an intermittent wiring connection or faulty signal to the EMS:

• Extended crank time with a cold engine
• Intermittent rough running
• Unstable idle
• Bucking
• Hesitation
• Stumble
• Chuggle
• Poor fuel economy
• Stalling on acceleration

Crankshaft Position Sensor Engine speed is a very important input to the Engine Management System (EMS). Crankshaft speed and position are the basis for many calculations made by the computer. Crankshaft position values are transmitted to the computer by pickup coils also known as Permanent Magnet (P/M) generators, hall-effect sensors or optical sensors. The Crankshaft Position Sensor (CKP) also known as engine speed sensor is located in close proximity to the crankshaft.
In addition the EMS uses minute variations in the CKP sensor data to determine engine misfire. The EMS uses this information in conjunction with the camshaft position sensor to perform misfire diagnostics.
Related Symptoms: No Start/Intermittent Start Condition – Can be caused by a faulty crankshaft position sensor due to loose connections, bad grounds, high resistance in the circuit, or opens in the circuit