alright guys, maybe i can get some help from someone on here, i recently put on the zfr a few weeks ago and had it tuned. well out of no where two days ago, it just started taking FOREVER to hit full boost. i remember being told the wastegate rod nuts would back off some times so thats the first thing i checked, nope. still tight and in the same position as when i installed the turbo. all the clamps are nice and tight however one coupler has a crack in it, not all the way through but its still cracked on the outside. not sure if that would be the problem or not, dont think it is since i can still hit full boost, just takes too long. any help would be much appreciated, i just want to see if there are any common problems that im missing. thanks

 

How late of a spool are we talking here? Also, have you noticed any changes in how the turbo or engine sounds when going WOT?

 

like close to 6k for full boost. stupid slow. havent noticed any changes in turbo or engine sounds though, still sounds the exact same when it is WOT and FINALLY full boost......im just lost but gonna boost leak test it tomorrow.

 

Same thing happened to me, changed the actuator solenoid and was all working well again(used the one off the ko4)

 

thats what i was thinking was a possibility. unfortunately my K04 is 2.5hrs away >___< how quick did your solenoid go bad though? i mean i literally only have a few thousand miles on it....ill have to see how much they are. this no boost thing is killing me right now.

 

Yeah if that's the case then I think C_A_D_88 is probably onto something with the wg solenoid. If you have access to hptuners it should be a pretty easy thing to see what's going on with it.

 

Unfortunately no access to hptuners. I'm trying to get a new coupler asap and see where that leads, if no where then to the solenoid.

Still open to opinions or other problems ppl have come across with the boost problems.

 

I had the Zfr on for 1000 km during my clutch break in period( had clutch and zfr installed at same time)
And had like 4 Dyno pulls before it starters with the slow spooling issue

 

Wow, and i have way more than 650 miles on mine....crazy that the solenoid went bad that quickly.....thanks for the input bud.