SOURCE: locating camshaft positioning sensor on 2000 Daewoo Laganza
when you open your hood and you look on the valve cover you see on your left side of top of your cover a cable sticking out from a black piece that is the positioning sensor that cranksup the car
SOURCE: camshaft position sensor
This V-6 has a very hard to find/hard to reach CKP - it is directly under the Distributor, about 4 inches below, inwards toward the Transaxle "bell". Almost dead-center in the back of the engine.
Your going to have to take the Air Filter and the air manifold that runs to the engine off. After that, take off the horn assembly to gain very, very limited access to wedge an extended ratchet into the bowels of the engine.
I think the same socket that undid the horn assembly fit the CKP nut. It takes 10 minutes to undo the bolt a couple ratchet clicks at a time, at least 15 to get the thing to wiggle out, probably 15 minutes to unconnect, reconnect, and snap back to the fram the wire harness, and at least another 10 minutes to ratchet the bolt back in click by click.
Now you know why they say shops charge $500 in to do this - I think they must take the entire engine out... Very painstaking job that requires patience and precision... but quite satisfying to finish it yourself.
Good luck and hope this helps,
SOURCE: Camshaft Position Sensor Location
IF U GO TO THE RIGHT SIDE OF THE ENGINE AND LOOK 4 INCHES BEHIND THE BELT IT WILL BE ON TOP OF THE TIMING COVER.THE WIRES WILL BE RED/WHITE,BLACK,BROWN/WHITE
SOURCE: Where is the camshaft position sensor located in a 2001 VW Passat
when you are looking at the engine pull off the plastic cover on top then the front cover that covers you timing belt there is a wire harness tha goes right to it in the left upper coner two ten mil bolts and it comes off careful not to drop bolts down in belt that could be bad. it is that easy
po121 means that there is a problem with the throttle position sensor ( tps). or in the wiring or connector, most likely its the tps that is bad. first remove connection from tps, heres how to test. use an ohms meter and hook a lead to top or bottom terminal of tps. use other probe on center terminal of tps. move throttle plate slowly, if the needle on meter does not move at a smooth pace, then tps is bad. good-luck!!
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