temp sensor to turn 5th injector on

Discussion in 'How To' started by rickyrooo1, Nov 18, 2012.

  1. rickyrooo1

    rickyrooo1 Hanging round like a bad smell

    so i found the sensor that chrisradioman told me may be the cause of my poor starting (see my van thread) anyway thought i'd check it out before i get one, here's two pics which show it looks like it's melted to the tinware? the sensor joins the loom by a connector (under the tape) but it then appears to be stuck to the tin? you can see in one shot where i have a screwdriver showing the loom wire.
    [​IMG]
    [​IMG]
    can anyone confirm that's wrong?
    also any idea if the sensor can be fooled into working if i bypass it and just earth the wire? i'm guessing while cold it earths out letting the cold start work, then when warm shuts off? ta
     
  2. That defiantly is wrong, its melted, un-melt i, replace & your cooking on gas again. :)
     
  3. rickyrooo1

    rickyrooo1 Hanging round like a bad smell

    cheers chris i have enough slack to join into the loom when i get one, any thoughts on my idea to bypass the sensor to test it? is my idea feasable?
     
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  5. Cut your wire to the sensor & measure the ohms to earth, see what you get. :)
     
  6. rickyrooo1

    rickyrooo1 Hanging round like a bad smell

    i aint got a way of doing that, i thought if i just earthed it direct and it started better i'd know it was shagged, will that hurt anything?
     
  7. vinnyboy

    vinnyboy Supporter

    It might work but i wouldn't take a chance in case you fry the ecu. Looks like you need one anyway.
     
  8. rickyrooo1

    rickyrooo1 Hanging round like a bad smell

    ok fair one, it may be that where it's melted it may be earthed anyway.... i'll cut and join it see if that helps if not i'll order one.
     
  9. The sensor in the pic is the temp sensor 2, just it does not turn the fifth injector on.

    The TTS (Thermal Time Sensor, off the ground my head) is what turns the fifth injector on and off.

    To test the CSV (cold start valve) unplug it when cold and see if you engine starts the same.

    Does it poor start when warm?
     
  10. At a certain temp the TTS sends a signal to the CSV to turn on for about 8 seconds and then it turns it off
     
  11. rickyrooo1

    rickyrooo1 Hanging round like a bad smell

    pkrboo im confused? it starts crap cold and fine warm wheres this other sensor then? and what do you mean the one i'm messing with is a temp sensor? what for? please explain in dumbo, i'm fluent in that.
     
  12. I am not at home at the moment but have a read here: http://www.ratwell.com/

    There is also a guy called amskeptic on itinerant aircooled forum who has written up on what each part does
     
  13. rickyrooo1

    rickyrooo1 Hanging round like a bad smell

    i had a look on there before, i have to admit to not being one for techno babble a picture and brief explaination of where it is and what it does and i'm happy lol
     
  14. Poptop2

    Poptop2 Administrator

    Excuse my obvious ignorance in all things over 1600 sir Poo but i thought a thermal cold start sensor looked like this --




    Obviously i have it wrong but i did think that was what you were on about ?
     
  15. rickyrooo1

    rickyrooo1 Hanging round like a bad smell

    malc' i don't know what i'm on about. as i've said before i know diesels and i'm learning on the fly with these air cooled, no idea how this cold start malarkey works, last petrol car i had you pulled the choke out manually and pushed it in a bit as you went along..... that's why when pkrboo said the one i took is another temp sensor i want to know in idiot speak what i'm looking for
     
  16. If you earth the lead it will start exactly as it does now, if you disconnect the temp sensor it will start fine when cold & cut out when hot. :)
     
  17. Poptop2

    Poptop2 Administrator

     
  18. rickyrooo1

    rickyrooo1 Hanging round like a bad smell

    i think what is confusing me is the one i took a pic of that they call a temp sensor? what's it ACTUALLY do? same as the 5th cold start injector what is it? what does it do! why 2 sensors?
     
  19. rickyrooo1

    rickyrooo1 Hanging round like a bad smell

     
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