turns over but wont fire

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

   #1 25th September 2016, 15:42

   Hi all, need a master to help me with this lol, just got a vtr 03 plate for a steel at 100 quid, why a steel you ask? because it doesn't start lol. it turns over really strong now i can here the fuel prime in the tank when i turn the key. now the guy i bought it from said it had a misfire anyhow he did something which burnt the loom from the coil to the fuel relay switch(is that right) one under ecu. So he got a new loom fitted it and all he got was it turning over.
   
   Now i come into the picture, i thought coilpack so changed this and no luck. He said to me that there are two wires (no plug on end) at the back of the block roughly in the middle. Looking online iv noticed there is a sensor at the back on the vtr engine, is this a knock sensor? and if so will it stop the engine from firing if it isnt wired up? your help on this is greatly appreciated. I bought the car to race next year as a track car. thanks for looking
2. Phaeton Regular Poster Joined: Aug 2015 Sunny Worksop Posts: 441 1989 MK1 MR2 with V6 3.0L Camry engine

   #2 25th September 2016, 19:17

   There's also a white (I think) that comes from the ECU that has to go onto the starter motor otherwise the ECU isn't getting a constant live.
3. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

   #3 25th September 2016, 19:39

   but would that not stop the car from turning over??
4. Phaeton Regular Poster Joined: Aug 2015 Sunny Worksop Posts: 441 1989 MK1 MR2 with V6 3.0L Camry engine

   #4 25th September 2016, 19:41

   Nope just stop it firing & knowing when to fire the injectors
   
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5. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

   #5 25th September 2016, 19:49

   im away from the car until tuesday, something you have come across? i used easy start while turning it over and she did cough 2-3 times but that was it thank you for the help buddy
6. Phaeton Regular Poster Joined: Aug 2015 Sunny Worksop Posts: 441 1989 MK1 MR2 with V6 3.0L Camry engine

   #6 25th September 2016, 19:59

   Personal experience in a VTS granted but I missed it
   
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7. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

   #7 25th September 2016, 20:02

   would love a vts but hard to come by nowadays and are a pretty penny. vtr is perfect for what i want and once the engine gives up and im confident on the track with it may do the conversion. iv read it could be the ecu itself? its not the immo and as i said iv changed the coil pack. with the ignition on without cranking should the coil pack have power? or is it only when its cranked thanks again
8. Phaeton Regular Poster Joined: Aug 2015 Sunny Worksop Posts: 441 1989 MK1 MR2 with V6 3.0L Camry engine

   #8 25th September 2016, 21:07

   Mine will be for sale this week the washer pump had packed up replacement being collected tomorrow so should be going for mot Tues/Wed. Been a great track car for the last 12 months. It could be the ecu I had to replace ours after not connecting that wire but don't know if that caused it or the guy who unlocked it.
   
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9. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

   #9 25th September 2016, 22:40

   unlocked it? i dont follow?
10. Phaeton Regular Poster Joined: Aug 2015 Sunny Worksop Posts: 441 1989 MK1 MR2 with V6 3.0L Camry engine

    #10 26th September 2016, 08:06

    The ECU the immobiliser which is near the fuse box & the key are all coded together, they all have to know about each other. But what you can do once you have it running is to unplug the immobiliser then it will not come on again, failing that you can send i off to somebody who will bypass the immobiliser permanently
11. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #11 26th September 2016, 08:45

    yeah i read that on here somewhere, iv got to get it running 1st lol, iv ordered some new bosch spark plugs so will see how that goes. As i said in my original post what sensor sits on the back of the block? as mine isn't wired in.
12. Phaeton Regular Poster Joined: Aug 2015 Sunny Worksop Posts: 441 1989 MK1 MR2 with V6 3.0L Camry engine

    #12 26th September 2016, 09:06

    It's the knock sensor should be a 2 wire terminal but I would have thought it would run without it
13. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #13 26th September 2016, 09:10

    Yeah that's it two wires hanging loose. The Eml light is on aswel if that helps?
    
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14. Robert12345 Infrequent Poster Joined: Sep 2016 lincs Posts: 104 Citroen saxo, fist punto sporting

    #14 1st October 2016, 17:07

    The crank sensor possibly taken mine off before to see if it was the reason something wasn't working but didn't fire.
    
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15. Gunny110 Infrequent Poster Joined: Jul 2012 chipenham, wiltshire Posts: 106 2003 saxo vtr

    #15 1st October 2016, 18:41

    Thank you bud you ate correct it was the crank sensor
    
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