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Top 2GNT Technical Turbo/Nitrous Tech topic #91680
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Subject: "urgent help needed, way too rich at any condition" Previous topic | Next topic
willmayoNov-30-05 08:55 AM
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#91680, "urgent help needed, way too rich at any condition"


          

i just drove from school to work (~100 miles) the entire time i was runnin a ~9.3 afr. which obviously is WAY too rich. Normally at a cruise it'll hang out around 14.5, and under boost it'll shoot down to 9.7 and move its way up to about 11.7.



WHY THE HELL DID I USE HALF A TANK OF GAS GOING LESS THAN 100 MILES?!?!!


setup is as follows, bosch 440 injectors, sfmu, all -6 aluminum hard lines feed/return. stainless from rail to sfmu. i dont get it, this is going to kill my pocket.


plus it runs like shit, the whole ride on the freeway i had to boost it in 5th gear just so it wouldn't buck like a pull.

--------------------
99 GS-Turbo 3.55 MTX
S16G @ ~15psi - FMIC - Forged Internals
Clinton Township, MI

Status: Parting Out...

  
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Replies to this topic
RE: urgent help needed, way too rich at any condition, eclipse982nrRST, Nov-30-05 09:01 AM, #1
RE: urgent help needed, way too rich at any condition, willmayo, Nov-30-05 09:57 AM, #2
      RE: urgent help needed, way too rich at any condition, eclipse982nrRST, Nov-30-05 10:07 AM, #3
           RE: urgent help needed, way too rich at any condition, willmayo, Dec-01-05 06:37 AM, #4
                RE: urgent help needed, way too rich at any condition, xceler8, Dec-01-05 07:48 AM, #5
                     RE: urgent help needed, way too rich at any condition, sike, Dec-01-05 08:14 AM, #6
                          RE: urgent help needed, way too rich at any condition, boosted60trimrst, Dec-01-05 08:52 AM, #7
                               RE: urgent help needed, way too rich at any condition, willmayo, Dec-01-05 01:08 PM, #8

eclipse982nrRSTNov-30-05 09:01 AM
Member since Mar 16th 2004
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#91681, "RE: urgent help needed, way too rich at any condition"
In response to Reply # 0

          

Originally posted by willmayo
i just drove from school to work (~100 miles) the entire time i was runnin a ~9.3 afr. which obviously is WAY too rich. Normally at a cruise it'll hang out around 14.5, and under boost it'll shoot down to 9.7 and move its way up to about 11.7. WHY THE HELL DID I USE HALF A TANK OF GAS GOING LESS THAN 100 MILES?!?!! setup is as follows, bosch 440 injectors, sfmu, all -6 aluminum hard lines feed/return. stainless from rail to sfmu. i dont get it, this is going to kill my pocket. plus it runs like shit, the whole ride on the freeway i had to boost it in 5th gear just so it wouldn't buck like a pull.


start with the basics, whats your fuel pressure at idle and while driving/cruising?

also, if you use the ML you might wanna clean it out and replace the filter element and even make sure the filter didnt pop out, and test the voltage going to your MAP sensor, that could be taking a dump on you as well.

-MIKE-

Stroked 2.2L

  
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willmayoNov-30-05 09:57 AM
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#91686, "RE: urgent help needed, way too rich at any condition"
In response to Reply # 1

          

idle fp is at ~18psi. my missing link doesnt have a filter like a lot do. its pretty much a solid piece of aluminum.

it almost seems like the ecu thinks im on the gas all the time, i dont have my datalogger to verify either. damnit.



NOTE TO DEREK (ETX): WE NEED TO PUT IN THE MS ASAP lol

--------------------
99 GS-Turbo 3.55 MTX
S16G @ ~15psi - FMIC - Forged Internals
Clinton Township, MI

Status: Parting Out...

  
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eclipse982nrRSTNov-30-05 10:07 AM
Member since Mar 16th 2004
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#91687, "RE: urgent help needed, way too rich at any condition"
In response to Reply # 2

          

Originally posted by willmayo
idle fp is at ~18psi. my missing link doesnt have a filter like a lot do. its pretty much a solid piece of aluminum. it almost seems like the ecu thinks im on the gas all the time, i dont have my datalogger to verify either. damnit. NOTE TO DEREK (ETX): WE NEED TO PUT IN THE MS ASAP lol


possibly a MAP sensor problem. check the voltage to your MAP sensor.

try cleaning the inside of your ML too...

-MIKE-

Stroked 2.2L

  
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willmayoDec-01-05 06:37 AM
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#91718, "RE: urgent help needed, way too rich at any condition"
In response to Reply # 3

          

any other suggestions guys???? its horrible running at 9.2 afr at all times!

what should i start checking other than the missing link?

--------------------
99 GS-Turbo 3.55 MTX
S16G @ ~15psi - FMIC - Forged Internals
Clinton Township, MI

Status: Parting Out...

  
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xceler8Dec-01-05 07:48 AM
Member since Jun 03rd 2005
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#91719, "RE: urgent help needed, way too rich at any condition"
In response to Reply # 4

          

I'm pry way off, but try checking your injectors, maybe one of them is staying open. Wouldn't hurt to check I guess, got nothing to lose.

Good luck


Fully Built MS powered 99' GS Sport, Garrett T3/T04e 60 trim with one big ass intercooler!

Yeah, she runs...sorta!

  
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sikeDec-01-05 08:14 AM
Member since Aug 06th 2003
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#91720, "RE: urgent help needed, way too rich at any condition"
In response to Reply # 5

          

burn't o2 sensor not reading and adjusting ? check your CELs will emoji

  
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boosted60trimrstDec-01-05 08:52 AM
Member since Sep 10th 2005
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#91722, "RE: urgent help needed, way too rich at any condition"
In response to Reply # 6



          

i had the same problem a couple months ago . turned out to be the missing link . not only did the the filter pop out but there was a little piece of clear plastic in the ml that broke . i would check that .

LED tails : Done for now!
99 eclipse rst
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willmayoDec-01-05 01:08 PM
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#91741, "RE: urgent help needed, way too rich at any condition"
In response to Reply # 7

          

removed my o2 sensors today. (wb and nb)... both of which were COVERED in soot or whatever. cleaned them up as good as i could and re-installed....

voila! it works again... damn o2 sensors... i still can't get a stable afr under boost for shit. if the damn db37 cable i ordered 2 weeks ago would just show up i could get the ms goin.

thanks to all who contributed

--------------------
99 GS-Turbo 3.55 MTX
S16G @ ~15psi - FMIC - Forged Internals
Clinton Township, MI

Status: Parting Out...

  
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