Spitting flames out of throttle bodies

1. makaveli144 Saxperience Forum Bum Joined: Feb 2007 Burton Posts: 3661 Alfa Romeo GT

   #1 24th June 2009, 18:16

   Basically I started my car for the first time today after I fitted the throttle bodies,I started it without the throttle pot wired in and it ran very lumpy for a few seconds spat a flame out of the inlet then I turned it off.
   
   Basically did it do it because the throttle pot wasn't wired in so the ecu wouldn't have known what was going on,or could it be another problem?
2. user_31412 Established Member Joined: Feb 2009 ★ West / North Yorkshire ★ Posts: 1653

   #2 24th June 2009, 18:18

   Ermmm... somethings not right
3. makaveli144 Saxperience Forum Bum Joined: Feb 2007 Burton Posts: 3661 Alfa Romeo GT

   #3 24th June 2009, 18:23

   I know that
4. user_31412 Established Member Joined: Feb 2009 ★ West / North Yorkshire ★ Posts: 1653

   #4 24th June 2009, 18:25

   Isnt backfiring like that timing related? Plug everything is and see if it works?
5. LeeM Saxperience Post Whore Joined: Feb 2008 Liverpool Posts: 7393 Black Corsa C SRi

   #5 24th June 2009, 18:27

   timing related surely? there shouldnt be ignition when the inlet valves are open
6. makaveli144 Saxperience Forum Bum Joined: Feb 2007 Burton Posts: 3661 Alfa Romeo GT

   #6 24th June 2009, 18:46

   Yea that would make sense,except I haven't altered the timing,it was set by car worx when the car was cammed two years ago.
7. LeeM Saxperience Post Whore Joined: Feb 2008 Liverpool Posts: 7393 Black Corsa C SRi

   #7 24th June 2009, 18:50

   maybe the amount of air and fuel is causing early detonation or somethin?
8. makaveli144 Saxperience Forum Bum Joined: Feb 2007 Burton Posts: 3661 Alfa Romeo GT

   #8 24th June 2009, 19:22

   Maybe.I honestly have no idea tho.
9. Aron Saxperience Forum Bum Joined: Feb 2007 Nuneaton Posts: 3554 EP3 Civic

   #9 24th June 2009, 19:26

   your best bet is to speak to someone like alexr ryan, someone with experience of them. or ring a proper garge tomorrow instead of listening to people say something for the sake of it to look good.
10. makaveli144 Saxperience Forum Bum Joined: Feb 2007 Burton Posts: 3661 Alfa Romeo GT

    #10 24th June 2009, 19:51

    I'm hoping Ryan or someone will notice the thread.
11. user_4153 Frequent Poster Joined: Oct 2004 Cambs Posts: 630 Vts track car

    #11 24th June 2009, 20:39

    What management? What map are you using for them?
    Have the bodies been balanced?
12. webby Established Member Joined: Jul 2007 manchester Posts: 2456

    #12 24th June 2009, 21:02

    timing is out. when we are setting up a carburettor car at work and it spits through the intake like that usually means the timing is out.
    
    on a twin coil system i once put the leads on wrong and got them a 180 degress out. and it is usually to much advance in our case.
13. makaveli144 Saxperience Forum Bum Joined: Feb 2007 Burton Posts: 3661 Alfa Romeo GT

    #13 24th June 2009, 21:17

    I have kms ecu,but when I started it the tps wasn't wired in as really I was just checking the fuel lines.
    
    If the timing is out it has been like that for over two years so isn't that unlikely?
14. dannygti Saxperience Post Whore Joined: Feb 2006 dudley United Kingdom (England) Posts: 6790 106 gti/ SEAT LCR

    #14 24th June 2009, 21:20

    its because you have no tps, the voltage for ecu will be all over the place hence the ign timing out and throwing fuel out of inlet
15. makaveli144 Saxperience Forum Bum Joined: Feb 2007 Burton Posts: 3661 Alfa Romeo GT

    #15 24th June 2009, 22:24

    Thanks for that danny,that's what I was hoping but I wasn't sure.
16. sam-dud Infrequent Poster Joined: Jan 2009 Swindon Posts: 138 Citroen Saxo West Coast

    #16 24th June 2009, 22:55

    does it work now mate?
17. hooheehaa Infrequent Poster Joined: Jun 2009 North East Posts: 122 Saxo VTR Mk2

    #17 24th June 2009, 22:59

    I recon it is overfueling.
18. user_15989 Saxperience Forum Bum Joined: May 2007 Posts: 4857

    #18 24th June 2009, 23:03

    LOL had my car blow its air filter off a few times before it was all setup. If you have not messed with the engine it self it will just be the mapping is way out. I could get flames a good foot tall from my AX at times. Get it all wired up and then see where your at.
19. makaveli144 Saxperience Forum Bum Joined: Feb 2007 Burton Posts: 3661 Alfa Romeo GT

    #19 25th June 2009, 00:40

    Yea I will wire in y
20. makaveli144 Saxperience Forum Bum Joined: Feb 2007 Burton Posts: 3661 Alfa Romeo GT

    #20 25th June 2009, 00:41

    Yea I will wire in the throttle pot tomorrow and see what it does .
21. gouldy87 Saxperience Forum Bum Joined: Jun 2008 Posts: 3932

    #21 25th June 2009, 21:33

    thats not good
22. Barry123 Saxperience Hardcore! Joined: Oct 2005 Aycliffe Posts: 32205 Saxo VTS

    #22 7th July 2009, 01:10

    it's a too lean mixture mate... basically it's burns so slowly that it it's still burning when the the intake valve is opened.
23. pjm300 Saxperience Forum Bum Joined: Jun 2005 Potters Bar United Kingdom (England) Posts: 2749 T/B'd VTS

    #23 7th July 2009, 09:23

    mine did this til it was mapped
    
    if you're unsure how to calibrate the tps, drop me a pm.
24. makaveli144 Saxperience Forum Bum Joined: Feb 2007 Burton Posts: 3661 Alfa Romeo GT

    #24 7th July 2009, 09:46

    Its sorted now,it was the tps not been calibrated that did it.
25. pjm300 Saxperience Forum Bum Joined: Jun 2005 Potters Bar United Kingdom (England) Posts: 2749 T/B'd VTS

    #25 7th July 2009, 09:48

    shamone.
    
    smooth running?