Difficulty of replacing Engine Speed Sensor
16705/P0321/000801 - Ross-Tech Wiki
Long story short...getting intermittent EPC light. Shop pulled codes P0321 and P0366. Can't find much on 0366 but I think it was IndyTom who told me that was the Camshaft in another thread. Here's the Ross tech definition for 0321:
Code P0321 - Engine Speed Sensor Replacement
16705/P0321/000801 - Engine Speed Sensor (G28): Implausible Signal
Engine shuts off
Engine doesn't start
Glow Plug Indicator Lamp (K29) flashes
Engine Speed Sensor (G28) loose
Engine Speed Sensor (G28) faulty
Check Engine Speed Sensor (G28)
The Engine Speed Sensor (G28) is also used as a reference sensor for the crankshaft position and correlates with the Camshaft Position Sensor Bank 1 (G40) and Camshaft Position Sensor Bank 2 (G163).
My Crankshaft sensor was replaced in October 2011 when the car wouldn't turn over. I have a 2002, VW New Beetle GLS 2.0L automatic. I am a rookie - I wish I knew how to work on my own car but I don't. Money is tight, and I want to sell the car but I would like to make the EPC light go away first without paying several hundred $$$. I was offered $3,500 trade in with 71k miles, which seems pitiful (is this agreed?).
Anyway...How difficult is it to change the Engine Speed Sensor in the 2.0L 4cyl automatic '02 New Beetle? Does anyone have a photo of where it is? Could anyone instruct me on how to replace it? I'm not afraid to get dirty, but I do not have a jack for my car (other than the one to change the spare). If I can do this myself, I have a friend who has one I can probably use. Any help would be greatly appreciated.
It is a lot easier to replace on a car with Manual transmission. It's a very tight fit if you have an Automatic. But people have done it with a bit of frustration and some cuss words
Here are some links that may help:
VWVortex.com - TECH: MK4 2.0 Crank Position Sensor P0322
Volkswagen New Beetle Got the Bosch crank position sensor - JustAnswer
Has Anyone Here Ever Replaced the CRANKSHAFT Position Sensor???
I don't have an Automatic so I can't say what's involved getting to the sensor.
Here is the info on the P0366 code:
Fault Code P0366 VOLKSWAGEN
P0366 VOLKSWAGEN - Camshaft Position Sensor 'B' Circuit Range/Performance Bank 1
- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty Camshaft Position Sensor
- Faulty starter motor
- Starting system circuit
- Dead (Weak) battery
When is the code detected?
The camshaft position sensor signal sent to the Engine Control Module(ECM) during the first few seconds of engine cranking is out of range.
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of Power
- Engine Stall
P0366 VOLKSWAGEN Description
The Camshaft Position Sensor (CMP) is an electronic device used in an engine to record the rate at which the camshaft is spinning. This information is used by the Engine Control Module(ECM) to control ignition and fuel injection. The camshaft position sensor senses the retraction of camshaft (intake) to identify a particular cylinder. The camshaft position sensor senses the piston position. The sensor system consists of a rotating part, typically a disc, as well as a static part, the actual sensor.
When the engine is running, the high and low parts of the teeth cause the gap with the sensor to change. The changing gap causes the magnetic field near the sensor to change. The change in the magnetic field cause the voltage from the sensor to change.
When the crankshaft position sensor (POS) system becomes inoperative, the camshaft position sensor provides various controls of engine parts instead, utilizing timing of cylinder identification signals.
Oof. Well...I decided to take tomorrow off of work and have my VW guy look at it. If he can determine the exact issue I may try to fix it myself. If it's a couple hundred $'s, I'm getting rid of my beetle. :'(
Thanks so much for your help Tom! It's been a real help during this process.
Good Luck with whatever you decide.
They said O2 sensor was bad...brakes and rotors need replacing...bushings probably OK but not great. Bottom line...I got a good deal for trade in. Dealer is giving me more than Beetles my year are selling for on eBay and I'm getting a decent price on the new car. I am not happy about this but I can't afford to spend $1800 to fix everything wrong with the Beetle. Maybe only $700 now but there are other things that need to be replaced. All I can hope for is that she will go to a wonderful new home.
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