vtr engine loss power

1. kyle4256 Established Member Joined: Feb 2008 dundee Posts: 1844 saxo vts

   #1 6th November 2012, 21:00

   hey! my brother has a 2003 vtr 3 plug and says it wont go over 3000rpm and loss of power anyone came across this? i disconnected the lampda sensors but the problem was still there and no fault codes have came up. anyone shed some light?
2. jones91 Established Member Joined: Jun 2011 Bridgnorth (Shropshire) Posts: 2001 Jdm Dc2 Integra

   #2 6th November 2012, 21:20

   If its just a small loss in power, it could be the map sensor, if its a large loss of power, could be the coilpack or the cat has collapsed inside the exhaust, but if it's the coilpack you'd notice it running lumpy too
3. kyle4256 Established Member Joined: Feb 2008 dundee Posts: 1844 saxo vts

   #3 9th November 2012, 18:55

   tried both lambda sensors now , fault is still there , changed over map sensor and checked coilpack there ok ... what else can this be?
4. kyle4256 Established Member Joined: Feb 2008 dundee Posts: 1844 saxo vts

   #4 9th November 2012, 19:01

   ill unbolt the cat tomorrow c if it makes any difference
5. user_61517 Frequent Poster Joined: Sep 2012 canterbury Posts: 586 3/4 vtr turbo

   #5 9th November 2012, 19:24

   put your hand over the back of the exhaust to check if theres gasses coming out at a normal rate
6. kyle4256 Established Member Joined: Feb 2008 dundee Posts: 1844 saxo vts

   #6 9th November 2012, 21:34

   i doubt that will tell mee anythin bud, it revs idling but dies about 6000rpm and does not hit the limmiter for ages
7. kyle4256 Established Member Joined: Feb 2008 dundee Posts: 1844 saxo vts

   #7 10th November 2012, 18:47

   update :
   
   took cat off the car today and did not make a difference at all and changed fuel filter still no change
   
   anyone?
8. josh11490 Established Member Joined: Sep 2011 Ebbw Vale Posts: 1180 Clio 182 Daily, 106 GTi Track Project

   #8 11th November 2012, 02:18

   If I'm right they only rev to 6250? So there's no real need to rev over 6000 anyway?
9. W343NNA Frequent Poster Joined: Mar 2012 Derbyshire Posts: 770

   #9 11th November 2012, 04:26

   Quote:

   Originally Posted by josh11490 If I'm right they only rev to 6250? So there's no real need to rev over 6000 anyway?

   thats besides the point... ita clearly not running right, when was the last time it was serviced new plugs oil coolant new coilpack oil filter and air filter... i did all of these last weekend ( got 03 vtr engine in my car ) and its amazing the difference it makes, have you got a engine managment light showing ? could be in limp mode, i had a furio that wouldnt hit the limiter just made a realy strange blllrrrrr noise at about 6 thousand rpm that turned out to be the ECU, also could be flywheel/ crank sensor if the engines making a loud nocking then could be bottom end fucked so manny possabillatys
10. kyle4256 Established Member Joined: Feb 2008 dundee Posts: 1844 saxo vts

    #10 11th November 2012, 18:40

    yeah its been serviced , no engine managment light showing at all, im thinking its the ecu now but gonna try the map sensor first, if it was the crank sensor the car would not start , it starts and ticks over perfect ! just when you give it a rev on idle it struggles to hit 6000rpm! and when your driving its dead on power it will hit 45 at a push up a hill and 70mph down a hill at a push!
11. chinkostu Saxperience Post Whore Joined: Aug 2008 The wrong carpark Posts: 5152 Xantia 1.9TD

    #11 11th November 2012, 19:05

    Either plugs or coilpack are shot. Suprised it hasnt thrown up eml
12. user_61517 Frequent Poster Joined: Sep 2012 canterbury Posts: 586 3/4 vtr turbo

    #12 11th November 2012, 20:00

    plug it into a diagnostics machine and see what the fuel quantity comparison is like, could possibly be injector related.. and the reason i asked to put your hand over the back of the exhaust was to see if it was restricted witht the flow of exhaust gas, save you taking the cat off.
13. W343NNA Frequent Poster Joined: Mar 2012 Derbyshire Posts: 770

    #13 11th November 2012, 20:57

    sounds like plugs / coilpack dead to me
14. kyle4256 Established Member Joined: Feb 2008 dundee Posts: 1844 saxo vts

    #14 14th November 2012, 23:17

    Update for folk with same problem as this
    
    had a ulocked vtr ecu from an ecu specialist and fitted it and the problem is still there but now its throwing up engine managment light, so i read the code on it and it says the following
    
    P0443 - Evaporative Emissions System Purge control valve circuit
    
    so tomorrow im goin to have a look at the purge valve see if the wires coroded etc
15. kyle4256 Established Member Joined: Feb 2008 dundee Posts: 1844 saxo vts

    #15 15th November 2012, 18:03

    Problem solved now pulling hard as a train !!
16. mlawlan69 Saxperience Forum Bum Joined: Sep 2010 leeds Posts: 4389 MCS R53 S/C 16v furiooo

    #16 15th November 2012, 18:05

    Quote:

    Originally Posted by kyle4256 Problem solved now pulling hard as a train !!

    which was?
    
    for future reference and all...
17. kyle4256 Established Member Joined: Feb 2008 dundee Posts: 1844 saxo vts

    #17 15th November 2012, 18:11

    connector on the purge valve ! was rusted to death