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My issue...2L

i have found that when working with electrical check the entrie wire from end to end... if it goes through a switch or a relay or anything check it, even though the cars are only 12volt systems, even the low end battery for the thing is cranking better then 500 amps... thats a lot of heat current to control, so start at the solder joints you made and inspect the wire and the entire system. i have found on my 2L if one thing goes bad electrically the entire system goes bad... i mean the wire, switch, fuse, etc. also check the connection to the VCT sensor and the solenoid, could just be loose connection. and heat shrink those solder joints and then tape it... you can't leave them open like that it will cause a short
 
so very one knows. I tested the harness and all the checks come back good.

Except for low voltage .48-.51v
 
new sensor! voltage still low. .51-.58

This reading was taken with the sensor unplugged and meter directly attached.
 
Are you looking for 12 volts at sensor? Thinking it's vref which is 5 volts.
 
I may be wrong about the above, if you're measuring the output from sensor itself without harness, you can try using an ANALOG meter and on dc scale, whirl engine over would show output "blips" if it's not a hall effect sensor. Ac scale puts it all together to make a constant voltage. The individual "blips" and spacing between them are what the computer reads. Pulse arrival time differences used by VCT, the timing blip inserted between crank sensor pulses determines number one cylinder to set up ignition timing at engine start.
 
I may be wrong about the above, if you're measuring the output from sensor itself without harness, you can try using an ANALOG meter and on dc scale, whirl engine over would show output "blips" if it's not a hall effect sensor. Ac scale puts it all together to make a constant voltage. The individual "blips" and spacing between them are what the computer reads. Pulse arrival time differences used by VCT, the timing blip inserted between crank sensor pulses determines number one cylinder to set up ignition timing at engine start.

you right its a 5volt system. My only meter which is digital, wont read any voltage if i have it set to DC. So it must be set to AC and put them all together. Talking to JD2, if looking like either the timing is off or my pcm is bad. Im hoping for timing. We both have comflicting reports though. His voltage is 1.88-2 at idle, the free autozone manual says over 1v, alldatadiy(pay use online manual site) says over .1v :shrug:. i have just over.50v

He had me unplug the VCT solenoid today to see how it acted and it didnt help anything. Which points to timing.

The bad part about all this is, we found out that 3-4 different problems will throw my p0340. :blackeye:
 
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