help these have all just poped up :(

  1. #1
    so i was driving my amazing 1.1 02 ph2 saxo last night and the engine light came up got home and checked them just now and they come back as
    P0337 powertrain crankshaft sensor circuit a low input
    P0141 powertrain 02 sensor heater circuit
    P0140 powertrain 02 sensor circuit no activity detected

    what does this mean and what is causing them. the only difference i've done is change the exhaust manifold on it last night from a standard one to a 4-1 manifold.
  2. #2
    Lambda sensor, and crank sensor

    did you bolt the lambda sensor back in to your manifold ?

    did you knock a wire on the crank sensor ?
  3. #3
    we never touched the sensors on the manifold took it off a mates car, yeah he had errors too but they were to do with the injectors so didnt think anything of it and where is the crank sensor ?
  4. #4
    Quote:
    Originally Posted by sauldeham View Post
    we never touched the sensors on the manifold took it off a mates car, yeah he had errors too but they were to do with the injectors so didnt think anything of it and where is the crank sensor ?
    Crank sensor is on the gearbox bell housing at the front of the engine. it's to the right of the disptick tube.

    Depending on the year it will have a grey or black connector and 2 orange wires.
  5. #5
    iirc i got a green plug just below the dipstick there and its only got one orange wire and its been like that since i got it back in february
  6. #6
    what will the crank sensor do if i just ignore it ?
  7. #7
    Quote:
    Originally Posted by sauldeham View Post
    what will the crank sensor do if i just ignore it ?
    Your engine will run like shit and gradually become a no start. (or suddenly depending on what the problem is)