sino Posted June 13, 2018 Report Share Posted June 13, 2018 Hi, somebody knows if an auxilIary output can control the secondary air pump relay on STI 2007 ? the genuine pin that control the relay is B136-8 I need to plug an electric vaccuum pump to have brake assistance when ALS is active Thanks a lot fred Quote Link to comment Share on other sites More sharing options...
Simon Posted June 13, 2018 Report Share Posted June 13, 2018 We do not have a Aux wired to that pin but if you have a free Aux any where it could certainly be used to switch a vac pump activated with the anti Lag. Quote Link to comment Share on other sites More sharing options...
Stevieturbo Posted June 13, 2018 Report Share Posted June 13, 2018 Volvo's use this 3 way tee with a vacuum switch on it to drive the electric pump ( via a relay of course ) Connect intake vac, elec pump and then to servo and the switch will operate to maintain vacuum in the servo. Many modern cars use a little electric pump now, think it's those with that stop/start nonsense but loads of them use the exact same pump, although they might control it differently. http://2cb6df.39.ekmpowershop.net/volvo-v70-s60-s80-power-brake-vacuum-control-switch--part-no-30645493-10453-p.asp Quote Link to comment Share on other sites More sharing options...
sino Posted June 14, 2018 Author Report Share Posted June 14, 2018 7 hours ago, Simon said: We do not have a Aux wired to that pin but if you have a free Aux any where it could certainly be used to switch a vac pump activated with the anti Lag. Hi Simon, thanks for replying so a G4+ pnp for my STI doesn't control the secondary air pump ? does it control tgv ? 5 hours ago, Stevieturbo said: Volvo's use this 3 way tee with a vacuum switch on it to drive the electric pump ( via a relay of course ) Connect intake vac, elec pump and then to servo and the switch will operate to maintain vacuum in the servo. Many modern cars use a little electric pump now, think it's those with that stop/start nonsense but loads of them use the exact same pump, although they might control it differently. http://2cb6df.39.ekmpowershop.net/volvo-v70-s60-s80-power-brake-vacuum-control-switch--part-no-30645493-10453-p.asp i use Hella vaccum pump UP30. it's enought to work stand alone but i will connect it to the engine too thanks for your help Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 14, 2018 Report Share Posted June 14, 2018 3 hours ago, sino said: so a G4+ pnp for my STI doesn't control the secondary air pump ? No we dont have any aux connected to the SAP pin. 3 hours ago, sino said: does it control tgv ? Yes the tumble valves are controlled by Aux 7 (Pin D22) & Aux 8 (pin D13). Quote Link to comment Share on other sites More sharing options...
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