TrisK Posted November 29, 2011 Share Posted November 29, 2011 I was having this arguement with a mate, and i couldnt explain it...Fact 1: you cant run boost below spring pressure of the wastegate/actuatorFact 2: with no boost controller you will run spring pressurethen how does the low boost mode work in the Glanza/GT?as when you remove the soleniod you run high boost all the timeCan somebody explain please?The only explanation i could think of was the oposite of how a bleed valve works, so instead of bleeding off presure the soloniod generates pressure and uses that to 'lie' to the actuatorThanks Quote Link to post Share on other sites
TO82 Posted November 29, 2011 Share Posted November 29, 2011 Stock actuator has 2 ports, one connected to the turbo, one to the boost solenoid, the port to the solenoid is shut for low boost , and opened for high boost. Quote Link to post Share on other sites
TrisK Posted November 29, 2011 Author Share Posted November 29, 2011 has anyone got a pic of the actuator showing these two nippes?ok so ive found this here:so the top nipple goes to the turbo, bottom goes where? Quote Link to post Share on other sites
TrisK Posted December 5, 2011 Author Share Posted December 5, 2011 bump Quote Link to post Share on other sites
Socks Posted December 5, 2011 Share Posted December 5, 2011 one goes to turbo... other goes to the boost solinoid mounted usually just above your cam cover! Quote Link to post Share on other sites
micky boy Posted December 5, 2011 Share Posted December 5, 2011 If you look beside your cam cover there should be a metal tube that runs down towords the actuator thats what the other vacuum pipe on the actuator go's to lol Quote Link to post Share on other sites
TrisK Posted December 5, 2011 Author Share Posted December 5, 2011 okill have a check, the reason for asking is my mate has a glanza.it has the standard actuator, filter relocation, exhaust sytem inc decatand the low boost removedhowever when he boots it it only lights up two lights, we plugged in a a boost guage and its running 6psi (0.4 bar). the turbo has been changed so it is possible hoses have got mixed up, possibly resulting in it being 'stuck' in low boost.im guessing itll proobably be a knackered actuator, so will get him a hks one. Quote Link to post Share on other sites
Socks Posted December 5, 2011 Share Posted December 5, 2011 or a boost leak...leaky dump valve?but yes... actuators r shite hks one is far superior! Quote Link to post Share on other sites
TrisK Posted December 5, 2011 Author Share Posted December 5, 2011 or a boost leak...leaky dump valve?but yes... actuators r shite hks one is far superior!cant hear a boost leak Quote Link to post Share on other sites
TO82 Posted December 5, 2011 Share Posted December 5, 2011 Most likely the second port on the actuator has been blocked off. Quote Link to post Share on other sites
TrisK Posted December 5, 2011 Author Share Posted December 5, 2011 Most likely the second port on the actuator has been blocked off.Yeah i will check it tonight to check that one goes to the turbo, and one goes to the boost solenoid. Quote Link to post Share on other sites
TO82 Posted December 5, 2011 Share Posted December 5, 2011 Yeah i will check it tonight to check that one goes to the turbo, and one goes to the boost solenoid.Well it sounds as if he is wanting to remove the low boost altogether if so just remove any pipe thats on the second port of the actuator and leave it to vent to atmosphere Quote Link to post Share on other sites
zaffydoo Posted January 23, 2022 Share Posted January 23, 2022 On 12/5/2011 at 7:01 PM, TO82 said: Well it sounds as if he is wanting to remove the low boost altogether if so just remove any pipe thats on the second port of the actuator and leave it to vent to atmosphere i tried that but got fuel cut lol Quote Link to post Share on other sites
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