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.

Running rich and still crap timing

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

Omega

20+ Year Contributor
1,558
10
Oct 10, 2002
Randolph, New Jersey
My new goodies include: SBR-G50, and a FMIC (still using the 190 FP & 550 injectors)

I brought the settings on the AFC up so that it is running really rich and logged a few runs. The timing would fall flat and basicly stay there throughout the run. I finally hooked my WB up and I was running 9-10:1 AFR. I have brought that up to high 10's, but it still doesn't feel like the old 16G did.

I really don't think the 550's stand a chance if I get the tune back to where it needs to be.

Will the ECU screw the timing if the car is running very rich?
 
If you are running rich, 10.8 A/F, then the 550's are obviously big enough. Lean it out more. It will make a big difference from 10.8ish to 11.5ish to 12.0ish. I noticed a huge difference from the high 10's to the high 11's.
 
Blue92 said:
If you are running rich, 10.8 A/F, then the 550's are obviously big enough. Lean it out more. It will make a big difference from 10.8ish to 11.5ish to 12.0ish. I noticed a huge difference from the high 10's to the high 11's.

just wondering if how can i adjust my air fuel ratio? thanks for the help!
 
get an safc or some sort of fuel management to lean it out. or you can get a chip. i've been around 11.2 afr and i had to take my safc to -48 on my highs to get it there so i would go with DSMLINK.
 
I have had the same prob,i bumped my fp up for now until my 680s come in,but with the 550s,i have them leaned out like 5 percent across board..to4e 57...its crazy..i had it 10 percent rich across the board and the car would feel like a pig,leaned it out alittle and it turned into a monster?!I dont know it must be a dsm thing hahahhah :D
 
Well, I ordered some more toys.

The 660's arrived today. I am waiting on the FP and the fuel line upgrade. I am going to hold off on the pump until I am sure I will need it.

The new filter I picked up is TINY! It's about 3.5" long and has the dia a little smaller than a toilet paper tube. I wonder if this filter is for a carb.. not FI?

Who is running an aftermarket filter... and what are the dimensions?
 
i got the russell 6an fuel filter from jegs and it was 1/2 the size of my factory and works fine so.
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Latest Classifieds

  • For sale 4G63 NEW Stop Tech Drilled And Slotted Rotors
    New Stop Tech Drilled & Slotted Rotors $70 + shipping and paypal fees* FITS * Eclipse GST...
    • jersygsx
    • Updated:
    • Expires
  • For sale 2g 2G GSX/GST Manual Transmission Steel & Poly Mount
    2G GSX/GST Manual Transmission Mount (Steel & Poly) $45 + shipping and paypal feesYou must be...
    • jersygsx
    • Updated:
    • Expires
  • Wanted 1991 tsi AWD auto engine harness
    Looking for a engine harness for my 1991 eagle talon AWD tsi auto trans If anyone has one hit...
    • sanmantsi72
    • Updated:
    • Expires
  • For sale 1997 eagle talon tsi
    I have a 1997 eagle talon tsi fwd auto for sale. It has 108k miles and in good condition.Recent...
    • El_marto
    • Updated:
    • Expires
  • For sale 1G DSM 4G63 PARTS
    Cleaning out my shop closet, Buyer covers shipping & fee.Parts:.20 Over Turbo 6-Bolt Block...
    • The_Partout_Spot
    • Updated:
    • Expires
Back
Top