2000 VW cut off when hot and will not crank until cooled down. Plugged in OBD from trouble code P0322 (speed sensor) checking with ohms meter shows 1000. Shows correct reading. What is the problem?
Engine speed sensor could be faulty.engine speed sensor provides the ECM with a crankshaft position signal.the ECM uses the signal to determine a crankshaft reference point top dead center and calculate engine speed. engine speed sensor like the crankshaft position sensor.if sensor faulty fuel system wont work. a bad engine coolant temperature sensor will cause engine shut off when hot.
SOURCE: p0322 vw passat 2001 ignition distributor, speed
Check Engine Speed Sensor, or cmp
http://forums.vwvortex.com/zerothread?id=2934505
This could be a magnetic or optical sensor. What it does is watches your Crankshaft for TDC (top dead center of the #1 piston) Then Ignition timing can occur because the ecu knows where the #1 piston so it can squirt fuel and ignite the spark. Also works in conjuction to your Camshaft sensor which allows the engine to breath. Note, without Air no combustion will occur in the engine, which gives you a no start condition.
In conclusion, If you find the CKP ( crankshaft sensor) and inspect its wiring. It could be scored since it is on the engine block and Also remove it and do a resistance test, to make sure it isnt broken internally.
If it is wiring Repair as needed
and if it is a faulty Sensor replace it and you should be good to go.
If you have a hard time starting it with out doing all the above, then try to crank the engine with the key for a few seconds, then stop, reverse the key and retry starting it. By this time the engine will have enough fuel vapor and heat that the top piston will ignite forcing the engine to start. Remember CKP only is used for ignition.
GOOD LUCK and keep me informed.
SOURCE: Trouble codes P0172 and P1128 - VW Beetle
The code P0172 means...system too rich(cyclinder bank No.1)..and all of the OBDII fault codes begin with a "P0"..i dont know what a P1128 is....i hope this will help you
SOURCE: VW P421 code
This is a common problem with V6 Passats. VW put out a TSB on this a few years ago.
The code is telling you that your catalytic converter (driver's side, I think) is bad. It's more than likely not bad.
VW put out a TSB on this a few years ago. TSB 05-13. The cause of the error code is basically an over sensitive ECU (computer of car/engine) and the fix is to have your ECU flashed with the latest and greatest software. Depending on your mileage they might do it under warranty - you'll have to check.
It's still possible that it might be a bad catalytic converter - and the dealership might try to tell you that either way. Call VW (1-800-822-8987) and ask them about the TSB (I couldn't find it online).
Tell the dealership you want the ECU flashed - it's much much cheaper than a cat. No sense replacing it if it's not bad
There is a federal warranty on catalytic converters - 8 yrs or 80k miles...
Hope this helps!
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SOURCE: MY VW POLO SHOWS FAULT CODE ; P0106 ABSOLUTE MANIFOLD PRESSURE SE
this a map sensor, probably just need the sensor replaced, it measurese intake vaccum and adjusts air/fuel mixture accordingly
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SOURCE: P1176 2000 VW JETTA ALREADY CHANGED THE 02
17584/P1176/004470 - Bank1: O2 (Lambda) Correction Behind Catalyst: Control Limit Reached
Possible Causes
Possible Solutions
This is the pre 02 sensor located before the catalytic converter.
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