Well it has always randomly popped (after modding began)... if you suddenly get on the throttle, it's really weird... and that has happened with ETS UICP or the cbrd short route UICP but always with Synchronic DV, which bucked badly before I tuned it and put in the MilSpec spring. I've been running it a couple of years since with only the occasional pop.

It sounds like it makes sense to do the rebuild, but If I could totally eliminate that damn pop, it'd be worth the money to me, that **** is embarrassing and naturally, it happens to you when you need it the most.

I'll double check to see if it's on a dedicated vacuum line.

 

Yeah the vacuum line should be coming right from a nipple on the IM. Im not sure what you mean about a random pop but that sounds strange indeed. Have you played around with different configurations? I found that it seems to work really well on my car in push mode with both port a and b connected.

 

I'm using the recommended 3 psi spring and just got retuned at cbrd and i haven't had any issues what so ever with this setup. Hope this helps.

 

I know this wont help but I have to say that is a clean engine bay. Sorry I have no input. The post right before mine looks correct to me. Hope you fixed the problem.

 

Hello guys any update for this ? I got my qrj qith green spring -3 psi and my car do this on normal pedal pressure... https://streamable.com/ugcnx