cutting out after fitting ph3's

1. richy_t_123 Frequent Poster Joined: Mar 2009 newcastle Posts: 980 2002 silver vts

   #1 8th December 2012, 21:05

   Fitted newman ph3's in my vts but car keeps cutting out on tick over. Timing is fine worked out if I pull the throttle cable and move the metal clip that adjusts it so its got more revs it ticks over fine? Does that mean I just need to adjust the throttle body some how? Hope that makes sence
2. DanTvts Established Member Joined: Mar 2011 Torbay Posts: 1285 Mauritius Vts, 206 Gti 180

   #2 8th December 2012, 22:20

   Not really it needs mapping to suit the cams & other mods really. Some people have issues with idle, some don't.
   
   When i was running 708's in my vts it only cut out once or twice in 6 months, obviously a very similar profile and people have the same issues with these.
   
   I might be completely barking up the wrong tree here but everyone i know who's had a later car ( 3 plug ) seems to have idle issues with 708's or ph3's. I only know two people with them in earlier cars, not including mine (single plug) and they don't seem to have idle problems, definitely a lumpy idle, but at least it idles lol.
   
   Not sure whether thats a coincidence or not to be honest!
3. rich112 Saxperience Forum Bum Joined: Jul 2009 Kent Posts: 4207 Mango cammed furio vts

   #3 8th December 2012, 22:21

   Most cams tend to make the car cut out without a map. Adjusting the throttle so its permantley open isn't a great idea.
4. user_31637 Saxperience Post Whore Joined: Mar 2009 Isle of Man Posts: 9844 92 Eunos

   #4 8th December 2012, 22:22

   Piss through fuel...
   
   Get it mapped!
5. Karlb1 Established Member Joined: Jan 2011 Aylesbury Posts: 1868 Seat Leon Cupra tdi

   #5 8th December 2012, 23:37

   As said, it needs mapping.
   
   Your air/fuel ratio etc will be all over the place without a remap.
   You'll probably do more damage than good if you keep driving it over a long term period like that, bite the bullet and get it remapped, you'll also get better power gains when it's mapped properly to the mods you've got.
6. richy_t_123 Frequent Poster Joined: Mar 2009 newcastle Posts: 980 2002 silver vts

   #6 9th December 2012, 14:09

   Think yous are right lads, looking in to geting it mapped now.
7. user_39461 Super Moderator Joined: Nov 2009 Cambridge(ish), UK. Posts: 10581 BMW 5x M50d.

   #7 9th December 2012, 15:29

   If you retard the exhaust cam a little you can cure the cutting out but you'll be down on power. Might make it liveable until you get it mapped tho.
8. luthor1 Established Member Joined: Jan 2008 Posts: 1802

   #8 9th December 2012, 15:58

   for goodness-sake DONT use the throttle cable clip to open up the throttle plate.
   
   The throttle plate is adjusted by a screw.
   
   The ECU reads the throttle voltage, and it MUST be under 0.7volts at rest otherwise the stock ECU won't go into idle.
   
   The ECU will target 14.7:1 AFR using the narrowband sensor at idle which the PH3 cams may struggle to do.
   
   Hope some of that helps!
9. richy_t_123 Frequent Poster Joined: Mar 2009 newcastle Posts: 980 2002 silver vts

   #9 9th December 2012, 15:59

   Car is off the road at the min anyway so doesn't really matter. When I get it mapped will I need adjustable pullys? Or does the timing stay as normal?
10. richy_t_123 Frequent Poster Joined: Mar 2009 newcastle Posts: 980 2002 silver vts

    #10 9th December 2012, 16:02

    Quote:

    Originally Posted by luthor1 for goodness-sake DONT use the throttle cable clip to open up the throttle plate. The throttle plate is adjusted by a screw. The ECU reads the throttle voltage, and it MUST be under 0.7volts at rest otherwise the stock ECU won't go into idle. The ECU will target 14.7:1 AFR using the narrowband sensor at idle which the PH3 cams may struggle to do. Hope some of that helps!

    I know that is not a fix was just to get the car to tick over as It would not even start propaly
    The car is off the road atm so just want it sorted befor I get it back out
    
    Thanks
11. KamRacing Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)

    #11 9th December 2012, 16:18

    Quote:

    Originally Posted by richy_t_123 Car is off the road at the min anyway so doesn't really matter. When I get it mapped will I need adjustable pullys? Or does the timing stay as normal?

    Keep it the same to start. Who timed them up when they were fitted? What were they done at?
12. richy_t_123 Frequent Poster Joined: Mar 2009 newcastle Posts: 980 2002 silver vts

    #12 9th December 2012, 16:25

    Fitted myself mate timing is set to std
13. luthor1 Established Member Joined: Jan 2008 Posts: 1802

    #13 9th December 2012, 16:35

    the car has adjustable cam pulleys as standard so you *already* have those
14. richy_t_123 Frequent Poster Joined: Mar 2009 newcastle Posts: 980 2002 silver vts

    #14 9th December 2012, 16:41

    Quote:

    Originally Posted by luthor1 the car has adjustable cam pulleys as standard so you *already* have those

    Wasn't sure if there were up to the job thanks
15. luthor1 Established Member Joined: Jan 2008 Posts: 1802

    #15 9th December 2012, 16:55

    yeah they are really good in my opinion, because you have the standard marks you can set them to so you're always starting from bog standard

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