I'm trying to sort a problem with Jeep Grand Cherokee 3.7 V6 , 2006 . It setting camshaft sensor fault on bank 1 . Today I checked it , everything seems fine . 5V present , good ground , good sensor signal 0-5 V square waveform , but still the code is present . The car hesitat when you go on full throttle . So decided to capture crank / cam waveform to see is everything OK , but I'm not able to find known good one . If anybody can help me find one , will be highly appreciate
There is one waveform in the library from a Jeep Liberty 2005 3.7 automatic.
Notes are: scantool show a 5 degree varience sensor have a good 0-5 volt square wave.
Test conditions: Key on Engine Running Idle.
Good news: cranks sensor waveform is the same.
Bad news: your cam sensor waveform is waaay different. You have big, small, medium, big, medium, if that makes sense. Library waveform has: three small, pause two small, pause, one small, pause three small, pause, one small, pause, two small.
So, are these engines cam sprokets different, or what?
Watch this 2008 cam pulse wheel, looks like on library waveform.
The author of the post asked to show - how to be the sync on the engine V6 ( CHRYSLER-DODGE-JEEP).
All NGC engines have the same synchronization.
This synchronization looks like on the screenshot.
Nothing else.
In the case under consideration,most likely, - there is no different cam sproket.
There is a faulty sensor, that reads a burst of pulses as one pulse.
That's all that was said.
Last edited by vasek on Sun May 26, 2019 8:25 am, edited 2 times in total.