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Old 03-04-2008, 10:57 AM   #17
Scooby Newbie
Member#: 78394
Join Date: Dec 2004
Location: Earth
03 Euro WRX MY03
Dirty White



Thanks for your detailed write-up on getting started. Here's my list of mods on my 03 EU WRX:

STI injectors
PE1825 turbo
APS 70mm CAI
stock downpipe
3 inch decatted downpipe
JDM STi engine (swapped)
Methanol injection

It's quite a heavy list of mods and I was previously running on ECUTek but I've decided to take a hands-on approach to tuning and not rely on another tuner.

I've since swapped my ecutek ecu for an STi ecu. Since I've previously swapped my wrx injectors for STi ones. this has helped me in a sense that I now do not need to do injector scaling (does that makes sense).

So, I've instead got started on scaling my MAF (using williaty MAF scaling method). So far, I'm still scaling my CL MAF. It's been going well so far, idles well and no more P0171 (too lean) CELs.

I'm going to scale my OL MAF next. Once that is done, am I right to follow the steps you have listed:
1. Dial in Boost
2. Dial in Timing
3. Dial in Fuel

The thing is I have a Blitz SBC-id boost controller. Do I need to dial in boost then, since my boost is controlled by my boost controller? Any parameters that I need to change?
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