The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

General Help with Tuning (DSMChip, SAFC, MAFT) *NEWBIE*

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

DSM_ThuNDeR

15+ Year Contributor
565
4
Feb 28, 2008
Salinas, California
Hello guys,
I'm new to tuning and would like to get as much help from start to finish if possible:pray:. I have the maft 1.3v set up with the GM maf as "BLOW THRU". Here are the mods I have :

SIX BOLT SWAP (2G)
DSM Keydiver Chip set for FIC 750cc's (set for 2G maf, but now running maft)
750cc's
Maf-t (1.3V)
S-AFC
Aeromotive FPR (set at 43.5 PSI)
HX-35
9_1 Compression
AEM wideband tapped 02 sensor 24" after downpipe
EvoScan (for logging)

I've ran the car a good amount of couple of miles already after full rebuild with very LIGHT throttle %. Things start to act funny when I start to build boost and ON.

Here are some of my symtoms:
-My wideband is never steady while cruising, and idle as well. I would like to start by saying that all of my knobs are set to ZERO on the MAF-T, and also all my correction levels at zero on the AFC. Let me just say I did a MID throttle pull (building 1-7 PSI) and eventually the car would sputter. I know for most of the time, from what I've read the maf-t is for tial and error... but i def dont want to mess up the fresh build. ALSO, on cold starts the car idle starts sky high (about 2,700- 3K) and will eventually surge... once i hold the pedal for a couple mins in it will eventually idle normal and no surge:confused:

. Let me know:
1. Where my knobs should be at on the MAF-T?
2. If the afc should still be selected as "KARMAN"?
3. Is it true I want my wideband to read 14.7 for most of the time?
4. Everyone around my area has told me I could run the MAF-T perfectly even though my DSM keydiver chip was made for the 2g maf... is that true?

I would like to start from the very beguining

I know it will take time and practice, but I want to start doing these things on my own, that way I dont have to rely on a fast shop that about 2 hours away and also charge me a dam arm or leg.

Thanks guys for reading guys:thumb:
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Build Thread Updates

Latest Classifieds

  • For sale Misc Left Over Parts
    Hello, I have a few left over parts for sale, these do not include shipping, please pm me for a...
    • r3dmak
    • Updated:
    • Expires
  • For sale Alpha Injection Clinic 2200cc for 4G63 DSM/EVO
    I have a set of Alpha Injection Clinic 2200cc high z injectors for DSM/EVO. I am stepping up to...
    • spoolinpos
    • Updated:
    • Expires
  • Wanted WTB 2g half rad
    ISO of a 2g koyo half rad or something equivalent.
    • Michael Wucher
    • Updated:
    • Expires
  • For sale Coilover Springs
    Used pair of Eibach coilover springs from an old set of Ground Control coilovers. 2.5" inner...
    • RamenPride
    • Updated:
    • Expires
  • For sale 4G63 Mitsubishi logo early valve cover
    Early Mitsubishi logo valvecover. “1990” All threaded holes are good. Has the 90 style vent...
    • Galant665
    • Updated:
Back
Top