I have a del sol 93 d16z6 when idling after warmed up idle sits at 400 rpm, has a rough idle. Port and polished head ferra race valve stock valve train tho. I also have a header and turbo pushing 10lbs of boost i also have 460cc injectors and a golden eagle hi flo fuel rail. the p28 has a base tune for the bigger injector and it has a cracked down pipe pretty bad exhaust leak which im planning on getting fixed next check. i also have oil possibly coming out the down pipe gotta get that fixed too cant catch a break any help would be appreciated thanks in advance!

 

If oil is coming out of your downpipe, that means it's coming out of your turbo. That's a big problem. Get it fixed ASAP. As for the low and rough idle, readjust your idle. There's a screw recessed into your throttle body, twist it out and your idle will go up, twist it down and your idle will go down. If slightly raising your idle doesn't solve the problem, you need to ditch that basemap and get a real tune.

No tuner worth two ***** will touch your car with a fucked up turbo, though - worry about that, first.

 

Seems like you have a lot of small issues with a big issue thrown in just for fun...
Fix your turbo oil leak.
Fix your exhaust leak.
Fix your tuning.

Why bother with a port/polish and race valves (wtf are race valves??) if you will only use stock camshaft?

 

i didnt wanna have to worry about heat or two piece valve and one of them coming apart so i got a set of one piece valves that are heat treated. Do they make a rebuild kit for a t4 tubo or do i have to piece something together??