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08-26-2018
Keep getting code p0340 has new cam sensor.rewired . checked all voltage everything is were its suposed to be..but still get the code car runs little rough at idle but has all its power and drives fine..has new gaskets from heads up new plugs wires icm and coils..what else can it be
08-26-2018
Did you replace it with an OE cam sensor? Sometimes even new ones are bad out of the box.
08-27-2018
Did you check to make sure the magnet was still in the cam gear? Series 1 engines (never found in a W Body) were known to lose the magnet and usually it ended up in the oil pan. I am not aware that anyone has had the problem and the S2/S3 magnet was better. worth pulling the sensor out and checking that it's in place.
The magnet can be seen here at about 8 o'clock in the cam gear.
08-27-2018
Yes replaced with a good sensor and i did scope the hole for sensor rotated motor and did see the magnet was there intact and tight......timing chain? Im receving signal to and from sensor so it and wires are good...starts up every time could the crank sensor be bad? Or out of time...but do have full power no miss a wot
08-28-2018
Time won't be off unless you took the timing set off and put it back together off a tooth or two.
Having a reading at the cam and crank both should compensate for any stretch.. which isn't much at high miles.
Might be a crank sensor..
P0340 - GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat
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