Cam sensor wiring help needed

1. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

   #1 28th September 2016, 20:26

   Hi all so some of you may have seen my other post ref my non starter vtr 03 plate. Abit of an update I have just realised on the new loom the previous owner had installed only has one wire going to it (a brown/red) the other is a green wire. I'm a 100% that this would make a non start fault, would it not? And if it does can anyone tell me where this wire goes back to on the ecu plugs. Thanks you in advance, craig
   
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2. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

   #2 28th September 2016, 20:27

   
   
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3. welshpug Saxperience Forum Bum Joined: Jul 2010 South Wales Posts: 3078 ZX 16v, 205 GTI, 309 Goodwood, 405 MI16.

   #3 28th September 2016, 21:32

   no saxo ever used a cam sensor??
4. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #4 28th September 2016, 21:44

   Quote:

   Originally Posted by welshpug no saxo ever used a cam sensor??

   Didn't the vts have one?
5. Phaeton Regular Poster Joined: Aug 2015 Sunny Worksop Posts: 441 1989 MK1 MR2 with V6 3.0L Camry engine

   #5 28th September 2016, 22:56

   None of my engines did
6. welshpug Saxperience Forum Bum Joined: Jul 2010 South Wales Posts: 3078 ZX 16v, 205 GTI, 309 Goodwood, 405 MI16.

   #6 29th September 2016, 00:02

   Quote:

   Originally Posted by stevo67 Didn't the vts have one?

   nope, its wasted spark batch fire.
7. Phaeton Regular Poster Joined: Aug 2015 Sunny Worksop Posts: 441 1989 MK1 MR2 with V6 3.0L Camry engine

   #7 29th September 2016, 08:37

   Can you take a better picture, one not of a black cat in the coal cellar?
8. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

   #8 29th September 2016, 09:19

   Sorry boys I ment crank sensor tw*t!! Lol
   
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9. axsaxoman Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380

   #9 29th September 2016, 09:33

   I would hunt round the engine bay --think its probably wrong connector been put on crank sensor --maybe another same plug type with 2 wires on somewhere else -
   1wire sounds like temp sensor or oil pressure switch connection--failing that get a wring diagram
10. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #10 29th September 2016, 15:54

    How many wires should go to the crank sensor? 1 or 2
    
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11. Phaeton Regular Poster Joined: Aug 2015 Sunny Worksop Posts: 441 1989 MK1 MR2 with V6 3.0L Camry engine

    #11 29th September 2016, 16:04

    I'll be home on about an hour I'll take some pictures for you
    
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12. Phaeton Regular Poster Joined: Aug 2015 Sunny Worksop Posts: 441 1989 MK1 MR2 with V6 3.0L Camry engine

    #12 29th September 2016, 16:04

    But I think it's 2 add is 2a hall sensor
    
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13. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #13 29th September 2016, 16:31

    Thank you phaeton and I belive you are correct it has two wires form crank sensor I belive he has put the temp sensor on the crank sensor and the crank sensor on the temp sensor. Fingers crossed could have her running in under 5 mins if that's the case. Should have a green and white wires going to it I think.
    
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14. Phaeton Regular Poster Joined: Aug 2015 Sunny Worksop Posts: 441 1989 MK1 MR2 with V6 3.0L Camry engine

    #14 29th September 2016, 17:36

    Quote:

    Originally Posted by Gunny110 Thank you phaeton and I belive you are correct it has two wires form crank sensor I belive he has put the temp sensor on the crank sensor and the crank sensor on the temp sensor. Fingers crossed could have her running in under 5 mins if that's the case. Should have a green and white wires going to it I think. Sent from my SM-G935F using Tapatalk

    
    
    
    
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15. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #15 29th September 2016, 19:01

    Yep two wires to it not one. Iv sorted it now but she is lumpy plugged my reader in and says injector circuit low on 1 2 3 4 is that just run some cleaner through it or need new loom
    
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16. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

    #16 29th September 2016, 21:58

    I looked up injector circuit and most searches say it's a wiring problem due to low voltage.
17. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #17 30th September 2016, 16:22

    Thanks ks stevo67 could I not just use power from another wire in the loom then
    
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18. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

    #18 30th September 2016, 19:37

    Quote:

    Originally Posted by Gunny110 Thanks ks stevo67 could I not just use power from another wire in the loom then Sent from my SM-G935F using Tapatalk

    No don't think you can,ask on here if anyones got a spare injector loom for sale.
19. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #19 30th September 2016, 20:07

    I got one today from scrappers along with new injectors and spare map crank knock sensors all for a tenner
    
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20. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #20 1st October 2016, 22:35

    So gents fitted new injectors and fuel rail, no more codes in ecu and light now out, however the lumpyness still persists. It runs lumpy and no response from the throttle at all. After a short while it then dies, does this sound like a fuel issue? Car was sat for 8 mo the with a full tank of fuel I'm thinking dirty clogged fuel filter? Anyone have any other suggestion? Iv also tried another crank and map sensor still the same lumpy idle
    
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21. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

    #21 2nd October 2016, 12:27

    Try some fresh fuel.
22. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #22 2nd October 2016, 17:55

    Well it was left for 8 months with a full tank in it I think it's gone bad? I did put 10 in just and still no good? Also changed the fuel filter today no change do you think it's the fuel then?
    
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23. Phaeton Regular Poster Joined: Aug 2015 Sunny Worksop Posts: 441 1989 MK1 MR2 with V6 3.0L Camry engine

    #23 2nd October 2016, 17:59

    Try new plus as well, I would drain & fill not just add
    
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24. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

    #24 2nd October 2016, 18:18

    Fuel if left in a car for a long time breaks down.
25. welshpug Saxperience Forum Bum Joined: Jul 2010 South Wales Posts: 3078 ZX 16v, 205 GTI, 309 Goodwood, 405 MI16.

    #25 2nd October 2016, 20:09

    it'll be fine on that fuel, I've left cars far longer and they've run just fine.
26. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #26 2nd October 2016, 20:23

    Thank lads iv put in new plugs new coilpack unlocked ecu new temp sensor and new fuel rail no faults on ecu and map sensor
    
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27. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #27 2nd October 2016, 20:23

    Also timing is still spot on
    
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28. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #28 14th October 2016, 18:42

    So iv checked the fuel pump, all good I'm slowly running out of ideas. I'm changing the idle control valve tomorrow with a new one only cost me 14 quid ☺ could a lambda sensor cause this much trouble?
    
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29. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #29 19th October 2016, 14:07

    So iv changed the icv and it's still the same I mentioned that the guy before me changed the loom in the engine bay. Are all the looms the same regardless of engine size? I.e would a 1.1 and the vtr loom be the same?
    
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30. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

    #30 19th October 2016, 15:12

    Looms are different from year to year & to an extant on engine size/spec etc.
31. Phaeton Regular Poster Joined: Aug 2015 Sunny Worksop Posts: 441 1989 MK1 MR2 with V6 3.0L Camry engine

    #31 19th October 2016, 15:16

    I'm not surprised a £14 ICV didn't cure your issues, I would be trying to borrow a known good one before hacking a loom about looking for a fault that might not be there
32. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #32 19th October 2016, 15:20

    The symptoms are exactly the same from the new sensor to the old one
    
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33. Phaeton Regular Poster Joined: Aug 2015 Sunny Worksop Posts: 441 1989 MK1 MR2 with V6 3.0L Camry engine

    #33 19th October 2016, 15:25

    Which is what I would have expected, original fubar'd new one fubar'd
34. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #34 19th October 2016, 15:32

    Thanks Stevo as I said I don't know what car that loom came out of and think that is the proplem
    
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35. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #35 19th October 2016, 16:28

    But would a faulty icv cause this much drama? Thought that just made the revs stick
    
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36. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

    #36 19th October 2016, 18:55

    A faulty icv could cause a number of idling problems,including high revving and cutting out.Has the timing ever been played with ie someone remapped the original and played with the timing?
37. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #37 19th October 2016, 19:10

    The timing is all OK as I took the covers off and checked. I was hoping someone already had this issue. Il try another icv off another car and see how I go
    
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38. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

    #38 20th October 2016, 13:10

    Icv's are different between the vtr & vts,the vts being longer(just for info)
39. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #39 20th October 2016, 20:08

    OK bud, I'm just wondering because the guy before me cut the crank sensor plug off, after I have attached it again maybe the signal isn't that strong?
    
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40. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #40 21st October 2016, 14:17

    FIXED!!! crank sensor was wired wrong way round lol, im such a tw*t haha all running now and drives lovely
    
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41. Phaeton Regular Poster Joined: Aug 2015 Sunny Worksop Posts: 441 1989 MK1 MR2 with V6 3.0L Camry engine

    #41 21st October 2016, 14:34

    Result!
42. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #42 21st October 2016, 18:13

    Yeah im really happy, its only cost me around 200 all in and that includes purchase price and transporting her home lol. so now to get her stripped out and race ready, anyone need an interior lol thanks to all those that helped me diagnose it also right good lads on here.