Giannis Posted June 29, 2019 Share Posted June 29, 2019 As title....i am a stock ep91 glanza owner When I push the throttle it boost fine(three lights on tacho an a lot of power and torgue) utlil 5000 5500 rpm the boost lows down (two lights on tacho and less power and torgue) Any suggestions Thanks Quote Link to post Share on other sites
akyakapotter Posted June 29, 2019 Share Posted June 29, 2019 If it's completely stock it will restrict boost in 1st and 2nd gear untill you bypass the hi low function. Cheers nick Quote Link to post Share on other sites
Giannis Posted June 29, 2019 Author Share Posted June 29, 2019 2 hours ago, akyakapotter said: If it's completely stock it will restrict boost in 1st and 2nd gear untill you bypass the hi low function. Cheers nick It is nothing to do with restriction....it happens to all gears Thanks Quote Link to post Share on other sites
BMX-RIG Posted June 29, 2019 Share Posted June 29, 2019 Weak actuator? Quote Link to post Share on other sites
Giannis Posted June 29, 2019 Author Share Posted June 29, 2019 44 minutes ago, BMX-RIG said: Weak actuator? This is my first suspicion Does a cracked manifold affects? Thanks for reply Quote Link to post Share on other sites
Shannan Ganga Posted July 12, 2019 Share Posted July 12, 2019 I am currently going through this same problem, I installed a boost gauge just to be sure and it confirms that I am losing boost as soon as that last light comes off, boost drops with it. From factory its 9psi and I am getting that and just as Giannis said around 5k it drops to about 5-6psi. Please any suggestions. Quote Link to post Share on other sites
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.