Introduction/White Smokage

[lamesauce]

Hey guys I'm new here. I picked up my first Z last week, a project I've been wanting to get into for awhile now. This is my first turbo car, so I'm sure I'll be asking lots of questions.

For now: I have some white smoke going on. It's pretty bad, mostly at idle and decel. Here's what I know....

-Previous owner suspects Turbo seal, but is definately no mechanic.-A/F gauge is stoich-to-rich under throttle, but when off throttle it reads super lean, sometimes falling off the digital gauge altogether.-Does not smell at all like burning antifreeze

The setup is as follows: ash ecu 550 Nismo injectors Sport 600 Jwolf Turbos Apexi electric boost controller Wide band 02

He had it put together and tuned by a shop 3 years ago, so it was put together correctly and nothing's really been changed since.

[nightops]

if you are running synthetic and turbos are leaking it can look whitish but should have a ting of blue in it. are you overheating at all? running rough? i doubt its the headgasket if it does neither of these

[lamesauce]

With a leaking turbo, when would it be burning oil the worst?

I'm also wondering about this idle mixture deal. Honest I've never had a vehicle with a a/f gauge, but I'd expect it to be richer during idle rather than super lean, unless there's not enough exhaust volume or if leaking turbos is affecting the O2 sensor at idle?

[nightops]

With a leaking turbo, when would it be burning oil the worst?

I'm also wondering about this idle mixture deal. Honest I've never had a vehicle with a a/f gauge, but I'd expect it to be richer during idle rather than super lean, unless there's not enough exhaust volume or if leaking turbos is affecting the O2 sensor at idle?

it is usually on decel and during warm up, do you have cats intact? those will hide the smoking somewhat. the lean thing is a concern as you will start to detonate when you go into boost if its already lean at idle. you should check the resistance on your injectors to see if they are in spec, and also the connections themselves. if the car has been sitting with the old style injectors it is likely that there is some corrosion going on...i wouldn't boost too hard until you get the a/f ratio corrected as damage could occur quickly