What should the DVM be at the top of the crankshaft?
What should the DVM be at the top of the crankshaft?
Most of the time the DVM reading should be around 12-volts. Manually turn the Crankshaft clockwise and observe the DVM reading. Every other time that the Crankshaft approaches the TDC mark (top dead center), the DVM reading should drop from 12-volts to 0-volt.
Where is the camshaft timing pin on a DTC p0340?
It is mounted at the end of the Intake Camshaft (See Fig. 2). When the Camshaft Timing pin comes close to the sensor head, the voltage at the signal wire drops to zero. It rises back to 12 volts when the pin leaves the sensor head. The Camshaft Position Sensor sends this signal to the PCM via the signal wire in the wiring harness (See Fig. 3).
What should the RPM be for a camshaft break in?
Camshaft Break-In Procedures Important! As soon as the engine fires, bring the engine RPM to 1500 to 2000 during the first 30 minutes of operation. Slower engine speeds may not supply the camshaft with an adequate amount of oil for the break- in period. Change RPM periodically to direct oil splash to different areas of the camshaft.
Where is the crankshaft position sensor located on DTC?
The Crank Mechanical Circuit (blue zone) spans from the Crankshaft Position Sensor, to the Crankshaft, the Timing Belt, and to the Camshaft Sprocket. Fig. 4 shows a Diagnosis Chart you can use to resolve DTC P0340 problem.
How to check the camshaft and crankshaft position?
Start the scope to see live data. Start the engine and run at idle. With your waveforms on screen stop the scope. Turn off the engine. Use the Waveform Buffer, Zoom and Measurements tools to examine your waveform. A digital CKP sensor signal ( Channel A) switching from just above 0 V to just below 5 V.
How to compare camshaft and crankshaft sensor waveforms?
The purpose of this test is to directly compare the relative positions of the Crankshaft position (CKP) and Camshaft position (CMP) sensor waveforms and features. View connection guidance notes. Use manufacturer’s data to identify the crankshaft and camshaft sensor signal circuits. Connect PicoScope Channel A to the crankshaft circuit.
Where can I find the crankshaft position sensor?
No variation in the waveform pattern positions with respect to each other (they should not shift with time), given fixed engine operating conditions. Go to the drop-down menu bar at the lower left corner of the Waveform Library window and select Crankshaft sensor (Hall effect) or Camshaft sensor (Hall effect).
How many CMP cycles are there on a camshaft sensor?
Each cylinder specific phase of the camshaft rotation indicated by the relative switching periods of the CMP sensor signal. One complete CMP sensor waveform cycle for every two complete CKP waveform cycles. Stable voltage levels, whether around 0 V or around 5 V, on both channels.
