- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
P1345 is "Crankshaft position sensor / Camshaft position sensor correlation"
Code P1345 determines if the distributor is installed incorrectly, or
if a mechanical malfunction is present in the engine. The light will
trigger when the engine is running and the camshaft sensor reference
pulse is not detected at a correct relative position with the crankshaft
pulse. Most likely causes for this Chevy check engine light code
include a faulty crankshaft position sensor, a wiring concern or an
improperly installed distributor. A quick check on the crankshaft sensor
is to monitor the RPM value with a scan tool while revving up the
engine. If the reading is close to twice the expected RPM, then the
sensor is likely faulty. There are other less likely concerns possible,
such as base engine or computer related issues, but these involve more
in depth testing. I hope this information is useful.
Your talking about an astro van right? If so the timing is not adjustable. It is set by the computer, using various sensors, like the crankshaft position sensor, the throttle position sensor and others.
If you don't have the van, it will be very difficult to test the Camshaft Position Sensor. Most reliable tests involve cranking the engine with the sensor installed and testing the sensor's output ranges. Most CPS's are magnetic and therefore testable conditions will be most difficult to achieve outside of the vehicle.
However, if you use a voltmeter, you can test if there is any resistance between terminals 2 and 3 (on a three terminal CPS). If the resistance is zero, this will only tell you that it is probably dead, but will not test if it has any other faults.