supra-spain Posted January 10, 2010 Share Posted January 10, 2010 first of all, I apologize for using a computer translator I have a problem with my supra JZA80, can not get more than 14psi, I'm greedy BCC, Walbro fuel pump and HKS PROFEC b where hard acceleration when it reaches 14psi fuel cut occurs in malaga Spain there is no mechanism to look like my car Quote Link to comment Share on other sites More sharing options...
Ric Posted January 10, 2010 Share Posted January 10, 2010 If you open the Greddy BCC it will have adjustable dials inside, you can increase the fuel cut using these, although its not recommended Quote Link to comment Share on other sites More sharing options...
SimonT Posted January 10, 2010 Share Posted January 10, 2010 Just out of interest do you have the correct BCC as they dont make one for a Supra you need the SW20 for an MR2 which might cause you problems but im unsure! Just a thought?! Quote Link to comment Share on other sites More sharing options...
tony tt Posted January 10, 2010 Share Posted January 10, 2010 Im having similar problems and i think its down to the fuel cut defender needing tweaked slightly. Must be hard though when theres no mechanic to look at your supra. Good luck with getting it sorted. Quote Link to comment Share on other sites More sharing options...
Nic Posted January 10, 2010 Share Posted January 10, 2010 If you open the Greddy BCC it will have adjustable dials inside, you can increase the fuel cut using these, although its not recommended It will need the screw inside adjusting, adjust a little at a time and test until you get it set at the level you want. Quote Link to comment Share on other sites More sharing options...
supra-spain Posted January 10, 2010 Author Share Posted January 10, 2010 Just out of interest do you have the correct BCC as they dont make one for a Supra you need the SW20 for an MR2 which might cause you problems but im unsure! Just a thought?! I have that model SW20 Quote Link to comment Share on other sites More sharing options...
supra-spain Posted January 10, 2010 Author Share Posted January 10, 2010 Im having similar problems and i think its down to the fuel cut defender needing tweaked slightly. Must be hard though when theres no mechanic to look at your supra. Good luck with getting it sorted. thanks for the replies, in Malaga there are no mechanisms to understand the MKIV, here is a very rare car Quote Link to comment Share on other sites More sharing options...
supra-spain Posted January 10, 2010 Author Share Posted January 10, 2010 It will need the screw inside adjusting, adjust a little at a time and test until you get it set at the level you want. I spent two days adjusting the screw, in no case exceed 14psi, I'm desperate Quote Link to comment Share on other sites More sharing options...
caracol Posted January 14, 2010 Share Posted January 14, 2010 bro make a jouney to Portugal i know a very good mechanic with a dyno that can view this for you. I also have a mkiv tt and if you came to Portugal send me a pm. Quote Link to comment Share on other sites More sharing options...
Nic Posted January 14, 2010 Share Posted January 14, 2010 I spent two days adjusting the screw, in no case exceed 14psi, I'm desperate Is it definitely fuel cut you are getting? Do you lose ALL power suddenly at 14psi or is it just misfiring? If the adjuster screw is not making a difference, then I would double check that it is wired in correctly. If it still makes no difference then the FCD may be faulty. http://www.greddy.com/img/PHP/products/pdf/683.pdf Quote Link to comment Share on other sites More sharing options...
supra-spain Posted January 17, 2010 Author Share Posted January 17, 2010 the car had not check the modification of the fuel pump, the mechanic 12v nullify the amendment Quote Link to comment Share on other sites More sharing options...
supra-spain Posted March 4, 2010 Author Share Posted March 4, 2010 hi all again, my above problem is the wastegate membrane that is broken http://img31.imageshack.us/img31/6396/19012010735.jpg http://img22.imageshack.us/img22/9827/02032010788.jpg http://img705.imageshack.us/img705/7332/02032010786.jpg wastegate new and old http://img412.imageshack.us/img412/9333/02032010789.jpg http://img412.imageshack.us/img412/2050/02032010790.jpg http://img72.imageshack.us/img72/3096/02032010792.jpg Quote Link to comment Share on other sites More sharing options...
Marty Posted March 4, 2010 Share Posted March 4, 2010 good old xs power wastegates hey. Hope you've swapped it for a decent one Quote Link to comment Share on other sites More sharing options...
supra-spain Posted March 4, 2010 Author Share Posted March 4, 2010 good old xs power wastegates hey. Hope you've swapped it for a decent one is not XS power, is very bad reputation, the truth, I broke the membrane, changing the inner wire Quote Link to comment Share on other sites More sharing options...
basaez Posted March 5, 2010 Share Posted March 5, 2010 hola paisano espero resuelvas tu problemilla pronto Quote Link to comment Share on other sites More sharing options...
supra-spain Posted October 10, 2010 Author Share Posted October 10, 2010 Hi all, the problem is solved, I had a problem with the BCC GREEDY, and also the BOV, I had a 10psi spring now I have a lot of force on the wheels, and broken torque converter:blink: Quote Link to comment Share on other sites More sharing options...
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