boxa 0 Posted December 15, 2012 Share Posted December 15, 2012 hi everybody well im not sure where to start but here goes i recently downsized from a 3.0 prado to a rav 4 d4d 2004 i bought the rav of a friend who blew the turbo. ive now replaced the turbo and for some reason the car wont rev above 3000 and it smokes badly if i disconnect the turbo vacuum the car will rev freely but no turbo spool ive read about scv valves and was wondering if this rings any bells any help or advice would be appreciated Quote Link to post Share on other sites
avensisd4d786 250 Posted December 15, 2012 Share Posted December 15, 2012 hi everybody well im not sure where to start but here goes i recently downsized from a 3.0 prado to a rav 4 d4d 2004 i bought the rav of a friend who blew the turbo. ive now replaced the turbo and for some reason the car wont rev above 3000 and it smokes badly if i disconnect the turbo vacuum the car will rev freely but no turbo spool ive read about scv valves and was wondering if this rings any bells any help or advice would be appreciatedsounds like scv'schange fuel filterclean egr valve. some guy last week soaked his scv valves in diesel overnight and it was ok for a while.click on link belowhttp://www.toyotaownersclub.com/forums/index.php?showtopic=87986 Quote Link to post Share on other sites
boxa 0 Posted December 15, 2012 Author Share Posted December 15, 2012 sorry forgot to say all filters done egr done Quote Link to post Share on other sites
avensisd4d786 250 Posted December 15, 2012 Share Posted December 15, 2012 yeah i would check scv valves next, if they are required pm parts king(lindop toyota) on here, should be able to sort you out on a price.I suggest you buy them from genuine toyota dealership for piece of mind. I think there are around £200 Quote Link to post Share on other sites
boxa 0 Posted December 15, 2012 Author Share Posted December 15, 2012 £260 to be exact im just nervous about spending that amount of money on a guess if i knew for sure i wouldnt mind Quote Link to post Share on other sites
boxa 0 Posted December 15, 2012 Author Share Posted December 15, 2012 also forgot to say it had new scv valves fitted at toyota 2 years ago but the rav sat idle for over a year until i got it Quote Link to post Share on other sites
avensisd4d786 250 Posted December 15, 2012 Share Posted December 15, 2012 £260 to be exact im just nervous about spending that amount of money on a guess if i knew for sure i wouldnt mindalso forgot to say it had new scv valves fitted at toyota 2 years ago but the rav sat idle for over a year until i got itthey have certainly gone up, click and read that link i posted a link did you read it?like i said someone got them working after soaking them in diesel overnight.please click on the below it will direct you to parts-king send him a message asking the price with your reg.http://www.toyotaownersclub.com/forums/index.php?showuser=34014 Quote Link to post Share on other sites
boxa 0 Posted December 15, 2012 Author Share Posted December 15, 2012 already done that Quote Link to post Share on other sites
three5 30 Posted December 15, 2012 Share Posted December 15, 2012 Hi,have you got access to an OBD code reader? It might give a bit more information and maybe reduce the risk in buying the SCVs. Quote Link to post Share on other sites
boxa 0 Posted December 15, 2012 Author Share Posted December 15, 2012 yes ive got a d900 hand scanner but doesnt reall do a lot as ive no fault codes Quote Link to post Share on other sites
boxa 0 Posted December 15, 2012 Author Share Posted December 15, 2012 ive also ordered an elm 327 Quote Link to post Share on other sites
boxa 0 Posted December 15, 2012 Author Share Posted December 15, 2012 i think if i can check fuel rail pressure it should confirm svc or not Quote Link to post Share on other sites
boxa 0 Posted December 16, 2012 Author Share Posted December 16, 2012 anybody !!! Quote Link to post Share on other sites
Mistermena 95 Posted December 16, 2012 Share Posted December 16, 2012 £260 to be exact im just nervous about spending that amount of money on a guess if i knew for sure i wouldnt mindhttp://www.ebay.co.uk/itm/Toyota-D4D-Denso-Diesel-Pressure-Suction-Control-Valve-Kit-SCV-RAV4-Avensis-/130818487990?_trksid=p2047675.m1850&_trkparms=aid%3D222002%26algo%3DSIC.FIT%26ao%3D1%26asc%3D11%26meid%3D4198518089544622593%26pid%3D100011%26prg%3D1005%26rk%3D1%26sd%3D130815036365%26 Quote Link to post Share on other sites
boxa 0 Posted December 16, 2012 Author Share Posted December 16, 2012 so do i just go for it and buy em ! Quote Link to post Share on other sites
boxa 0 Posted December 17, 2012 Author Share Posted December 17, 2012 ordered ! Quote Link to post Share on other sites
boxa 0 Posted December 22, 2012 Author Share Posted December 22, 2012 ok guys here goes ive now replaced scvs and theres no difference at all still wont rev above 3000 and chocking ive even dropped the exhaust jus in case of a blockage but its still the same seems like its starving of fuel im now out of ideas all sugestions will be gratefully appreciated Quote Link to post Share on other sites
igormus 19 Posted December 22, 2012 Share Posted December 22, 2012 check with EGR as it looks you have contra pressure on the exhaust as one of possible issuesregards Quote Link to post Share on other sites
boxa 0 Posted December 22, 2012 Author Share Posted December 22, 2012 can you explain ive removed egr and cleaned it Quote Link to post Share on other sites
igormus 19 Posted December 22, 2012 Share Posted December 22, 2012 ok let's start againyou ve changed turbo ? why ? was this new turbo the same as previous one ?EGR has been cleanned -- what was condition inside ?do you have soot filter -- condition ? Quote Link to post Share on other sites
Mistermena 95 Posted December 22, 2012 Share Posted December 22, 2012 Egr valve could be faulty? Quote Link to post Share on other sites
igormus 19 Posted December 22, 2012 Share Posted December 22, 2012 hi everybody well im not sure where to start but here goes i recently downsized from a 3.0 prado to a rav 4 d4d 2004 i bought the rav of a friend who blew the turbo. ive now replaced the turbo and for some reason the car wont rev above 3000 and it smokes badly if i disconnect the turbo vacuum the car will rev freely but no turbo spool ive read about scv valves and was wondering if this rings any bells any help or advice would be appreciatedre turbo -- check if all vanes are well rotated, and check with vacuum impulse tube if it is clean inside. Quote Link to post Share on other sites
boxa 0 Posted December 22, 2012 Author Share Posted December 22, 2012 ok firstly old turbo failed because Oil filter failed the vains are rotating perfectly and theres lots of vacuum in pipe if you disconnect vacuum pipe from actuator the engine will rev freely above 3000 its only when the gains are activated it struggles Quote Link to post Share on other sites
igormus 19 Posted December 22, 2012 Share Posted December 22, 2012 as vissible vacuum attachcment has VSV with el contactsmay be this VSV gices a wrong sugnal to ECU restricting revving up ? Quote Link to post Share on other sites
boxa 0 Posted December 22, 2012 Author Share Posted December 22, 2012 dont understand el contacts Quote Link to post Share on other sites
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