I did that once the car was fully warmed up and it did start matching up with the AFRest but couldn't get it to matchup during warm-up. Also, that wouldn't fix the lean-rich-lean oscillation I get during warm-up. Thank you for the reply and advice

fully warm log with AFRatioEST and WB not lining up. Exhaust pops could be hear as well, WB correlates with popping

here is the log. Didn't do it as bad on this log but the AFR target is off from what the wideband is displaying. Also you can see the lean-rich-lean oscillation on the wideband.

Hi. Converted from factory 2g maf to speed density using aem 5 bar and gm iat sensor. My MAF tune was solid and idle was perfect. Upgraded turbos so decided to go SD and now during warm up, idle would start surging say 2-3 mins after starting in conjunction with O2 starting to cycle. Wb would...

Do you have any way to log your ecu? kinda hard to play guessing game without some sort of data in front of us.

stupid question but...do you thing the clutch is slipping after 4500?

How's the basic maintenance? is base timing set? any CEL flashing from 4500 on? fuel pump still good? FPR still good? fuel filter good?

BLT done?

Did you remove the firewall insulation in the engine bay?

Sweet. When I get back I'll definitely get in contact and maybe you could help me out with my tune if you are able. I was on the fence with selling the 2g and buying an evo but wasn't set on that as I still enjoy tinkering with this platform.

Thanks for the invite and reply. I've been on and off in the DSM world but have always stayed lurking around. Really looking forward to meeting with other DSMers, I know the platform is a dying breed so to speak but I still love the platform and its possibilities. I'm not into building a track...

I know the last post was back in 2014, just wondering if anyone else is still around? Moved the Hburg 3 years ago, bought a trashed red 97 2g GST and completely tore it apart and rebuilt it (interior swap, repaint, trans, 6 bolt swap, everything) It's my weekend warrior car and love working on...

thanks for the reply. The unit is hooked up as you posted and I do believe you are right about the greddy PID controlling the boost like that. Ive narrowed down the problem to be the unit. I installed my MBC and now it hold 25 psi no problem with no "yo yo" effect as posted. I will give the...

Attached is my 3rd gear pull at 23 PSI, e316g turbo controlled by greddy profec b EBC. graphing the MAP, you can see a dip once full boost at 3800 to 4600 then tapers off and continues up till 6500. I cannot for the life of me figure out whats causing the dip. Anyone care to chime in? Thanks in...