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HiCustomer The code p1345 is crankshaft/camshaft pacesetting sensor correlation. If you just changed the distributer, I would be 99% sure it is off by one tooth. I would double check that the distributer is dead on. Being off only a little will set this code.
Let me know of you need more info.
I should have asked you first, was the light on before you replaced the distributer, and why did you replace it.
Even though the truck runs fine, and the timing light shows it is in time, it could still be off one tooth, and you could be compensating for it by having the distributer turned too far one way or another. That will set a code.
If you are positive the distributer is indexed correctly, what brand distributer did you use. If the light wasnt on before you replaced it, I would suspect the distributer being defective.
Let me know
Well, because that code is for cam/crank sensor correlation-the key word being correlation, I would suspect the distributer. I have replaced many of these distributers, only to have the vehicle come up with a new problem, such as a check engine light. I have even replaced the defective distributer with another aftermarket distributer only to have the same problem. When I got the distributer from the dealer, the problem was gone!(I learned a valuable lesson). I would get another distributer-a DELCO one if you can.
That sounds like a plan. I hope it works out for you.
Ok my feeling is that this is more of a misinstalled distributor rather than a problem with the unit. I would advise you to try to install the distributor in this manner to make sure it is installed correctly.
Important: Rotate the number (1) cylinder to Top Dead Center (TDC) of the compression stroke. The engine front cover has 2 alignment tabs and the crankshaft balancer has 2 alignment marks (spaced 90 degrees apart) which are used for positioning number 1 piston at top dead center (TDC). With the piston on the compression stroke and at top dead center, the crankshaft balancer alignment mark (1) must align with the engine front cover tab (2) and the crankshaft balancer alignment mark (4) must align with the engine front cover tab (3).
Notice: The ignition system distributor driven gear and rotor may be installed in multiple positions. In order to avoid mistakes, mark the distributor on the following components in order to ensure the same mounting position upon reassembly:
Ensure that the spark plug towers are perpendicular to the centerline of the engine.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Tighten Tighten the distributor clamp bolt to 25 N·m (18 lb ft).
Tighten Tighten the screws to 2.4 N·m (21 lb in).
The wire must not touch anything like the dip stick, rubbing will make a ground/short after time of use.
Important: If the Malfunction Indicator lamp is turned on after installing the distributor, and a DTC P1345 is found, the distributor has been installed incorrectly. Repeat Installation Procedure 2 if Malfunction Indicator lamp is turned on after installing the distributor.