ReeceGolliker Posted December 23, 2014 Share Posted December 23, 2014 Hi, my cars running stock boost and boosts to 10psi but I've noticed tonight most of the time in 3rd it's boosting to 10psi then down to 5psi? It's doing this in third and occasionally 4th? What could cause this? Boost leak? Quote Link to post Share on other sites
corofin12345 Posted December 23, 2014 Share Posted December 23, 2014 may be a leak but could possible be a actuator or wastgate issue too.... then again i dont know your setup look for a leak first off anyway Quote Link to post Share on other sites
ReeceGolliker Posted December 23, 2014 Author Share Posted December 23, 2014 Stock boost and actuator, usually boosts and hold strong at 10psi, I'll check all the piping tomorrow and make sure theirs no leaks! Seen a few people say about the stock actuators deteriorating? Quote Link to post Share on other sites
turbominicooper Posted December 23, 2014 Share Posted December 23, 2014 check your actuator, my bracket was loose so when it boosted and the actuator opened the gate it would then push itself back causing a fluctuation on boost Quote Link to post Share on other sites
ReeceGolliker Posted December 23, 2014 Author Share Posted December 23, 2014 ok ill have a look thanks, its not all the time but it is most of the time in 3rd, I've checked and i can't see any leaks Quote Link to post Share on other sites
Socks Posted December 23, 2014 Share Posted December 23, 2014 Old/Perished/Fucked actuator is a favorite for this problem. Quote Link to post Share on other sites
ReeceGolliker Posted December 23, 2014 Author Share Posted December 23, 2014 so if i get another stock actuator it would be ok? or would i just be able to replace the spring? thanks Quote Link to post Share on other sites
5e colin Posted December 23, 2014 Share Posted December 23, 2014 swap over for hks unit there adjustable and hold boost better Quote Link to post Share on other sites
ReeceGolliker Posted December 23, 2014 Author Share Posted December 23, 2014 Ok, is it an easy job for someone who isn't a mechanic? 😂 Quote Link to post Share on other sites
Ryan_EP82 GT Posted December 23, 2014 Share Posted December 23, 2014 Your stock actuator is fucked. Two bolts and a clip hold it onto the turbo, hardest bit is getting the clip off so no it isnt tough.If youve the efi pipe all still fitted youd be best removing it for access Quote Link to post Share on other sites
Roachy1994 Posted December 23, 2014 Share Posted December 23, 2014 If you put an adjustable on their make sure you dont turn it up to 2.8 bar :') Quote Link to post Share on other sites
ReeceGolliker Posted December 24, 2014 Author Share Posted December 24, 2014 Haha, I did read that post 😂😂 whoever told him that would be ok deserves medal 😂 Quote Link to post Share on other sites
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