War Chip Forums

Please login or register.

Login with username, password and session length
Advanced search  

Author Topic: Fueling help!  (Read 6756 times)

Slow325isedan

  • Newbie
  • *
  • Karma: +0/-0
  • Posts: 16
  • Car: 89 325i
    • View Profile
Fueling help!
« on: August 19, 2013, 10:29:59 PM »

Hello, looking for some help here, its also a fuel issue,

setup is:
89 325i
Walbro 255 pump
stock FPR
42lb inj
draw through MAF

Tonight was the first night i tried to start the car after the turbo build and the car wont even consider starting unless the throttle is 100% open and when it does get started it is running so rich it wont idle, not sure what the cranking fuel map is suppose to look like but it just seem way loaded up when i do get it too fire, any help would be great! thanks guys
« Last Edit: August 20, 2013, 09:35:21 PM by Slow325isedan »
Logged

Candy4M3

  • Guest
Re: Fueling help!
« Reply #1 on: August 19, 2013, 11:05:32 PM »

Did you make sure your turbo map is written on your war chip? If the ecu is running a n/a map, you will have crazy overfuel because the computer is providing the approperiate fuel for the standard injectors, our injectors are significantly larger.
Logged

Slow325isedan

  • Newbie
  • *
  • Karma: +0/-0
  • Posts: 16
  • Car: 89 325i
    • View Profile
Re: Fueling help!
« Reply #2 on: August 20, 2013, 05:39:54 AM »

Ya I'm fairly positive it's running on the chip, ill drop the rev limit to 3k when I get home to make sure, that's the only way to check right? Other then that I can't figure it out, could you screen shot your "cranking fuel map for me?
Logged

Slow325isedan

  • Newbie
  • *
  • Karma: +0/-0
  • Posts: 16
  • Car: 89 325i
    • View Profile
Re: Fueling help!
« Reply #3 on: August 20, 2013, 06:34:45 AM »

Actually it's only 4 values lol I suppose you could just tell me those, that would be a lot easier, originally the cam was 180 out, it was firing on the exhaust stroke, so I pulled the belt and fixed that now I'm at least getting it to fire, it's a mess lol but I'm sure will figure it out
Logged

Candy4M3

  • Guest
Re: Fueling help!
« Reply #4 on: August 20, 2013, 06:57:22 AM »

My values probably will be different from yours as I have a 413 ecu. But merely for reference at 960 rpm I have 129, at 480 rpm 125. Adjust accordingly throughout the rev range. Be careful with the engine timing as our motors are interference engines  :o
Logged

Slow325isedan

  • Newbie
  • *
  • Karma: +0/-0
  • Posts: 16
  • Car: 89 325i
    • View Profile
Re: Fueling help!
« Reply #5 on: August 20, 2013, 07:49:39 AM »

Ah yes I forgot that, ya I'm a 173, but thanks for the info anyway 
Logged

Candy4M3

  • Guest
Re: Fueling help!
« Reply #6 on: August 20, 2013, 07:55:55 AM »

keep us updated!  ;)
Logged

millerperformance

  • Administrator
  • Full Member
  • *****
  • Karma: +4/-0
  • Posts: 186
  • Car: The WAR Machine
    • View Profile
Re: Fueling help!
« Reply #7 on: August 20, 2013, 01:55:08 PM »

Are you using 60# injectors or the 42# injectors our tuning package comes with/requires?
Logged

Pistons & Rods | MAF Conversions | Cams | Tuning Packages | Contact | Facebook

Candy4M3

  • Guest
Re: Fueling help!
« Reply #8 on: August 20, 2013, 02:06:15 PM »

I think OP is using 60#
Logged

millerperformance

  • Administrator
  • Full Member
  • *****
  • Karma: +4/-0
  • Posts: 186
  • Car: The WAR Machine
    • View Profile
Re: Fueling help!
« Reply #9 on: August 20, 2013, 04:41:26 PM »

I think OP is using 60#

I was wanting to make sure he did not mistake that. The M20 turbo tuning package is meant to be used with 42# injectors. If he is in fact using 60# injectors with the 42# tune, that is the problem entirely.
Logged

Pistons & Rods | MAF Conversions | Cams | Tuning Packages | Contact | Facebook

Slow325isedan

  • Newbie
  • *
  • Karma: +0/-0
  • Posts: 16
  • Car: 89 325i
    • View Profile
Re: Fueling help!
« Reply #10 on: August 20, 2013, 09:34:52 PM »

No they are 42lb injectors, my mistake, I bought all the parts so long ago i forgot what i have lol, anyway i called miller earlier tonight and not sure if it was brody i talked to or not, but I also forgot to splice the wiring for the 12volt MAF so i did that and the car still is just running super rich, so rich its fouling the plugs out, I tested the MAF and the voltages tested out fine, Im stooped. Its acting like the MAF is not even there. Also i noticed i had my rev limit set to 3800 just so i knew the computer was getting the tune and it reved right past that point, any idea why that would be? Im beginning to think this is a mechanical problem and not a tune/maf problem, i just want to drive it already. the build took long enough lol. hellllp

PS: I checked the timing 3 times and im fairly certain its not an issue.
Logged