NOW I feel like a 944 owner! Another failed emissions.
05-28-2010, 01:35 PM
#16
Nordschleife Master
You don't have to remove the knolwedge (look at the castings for the engine and trans... clean them off and look reall good and you will see why.. should resemble the pic...
Last edited by JohnKoaWood; 12-29-2010 at 10:24 AM.
05-28-2010, 02:38 PM
#18
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I was referring to the fuel setup. 
Where is the FQS located? In the ECM?
(yes I asked this earlier but it was a edit and I dont think anyone saw it)
Where is the FQS located? In the ECM?
(yes I asked this earlier but it was a edit and I dont think anyone saw it)
05-28-2010, 04:21 PM
#20
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You guys with your silly emissions tests...
set FQS to position 2 or position 6 and try again!
http://www.motronic.ws/fqs.htm
2 is 0 timing change, -4% fuel, position 6 is -4% fuel and -4.15 deg timing
also check to see if your car has other than stock chips in it... some of the aftermarket chips run rich!
set FQS to position 2 or position 6 and try again!
http://www.motronic.ws/fqs.htm
2 is 0 timing change, -4% fuel, position 6 is -4% fuel and -4.15 deg timing
also check to see if your car has other than stock chips in it... some of the aftermarket chips run rich!
go -4 if running 87 octane, runs cleaner with 91.
87 burns faster than 91
05-28-2010, 04:31 PM
#21
Nordschleife Master
http://www.motronic.ws/fqs.htm
http://members.rennlist.com/951_racerx/FQS-adjust.html
http://www.promaxmotorsport.com/fqs.htm
fuel end timing are affected... if you have a better reference please share so I can bookmark it..
05-28-2010, 04:52 PM
#22
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Ok. Has not been chipped. Still completely stock ECU.
I popped the plug and set it to setting 2 as suggested.
Drove it and it does not feel much different. Should I fill up
with 87 and run it over the weekend prior to testing on Tues?
I popped the plug and set it to setting 2 as suggested.
Drove it and it does not feel much different. Should I fill up
with 87 and run it over the weekend prior to testing on Tues?
05-28-2010, 05:25 PM
#23
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what pisses me off is that at one time, it wasn't against the law for an engine to get old and blow a little smoke. with the police state program their now running,
the cat is very likely to blame here but, could a little blowby be causing the problem ?
if you do rings, you may as well do all the other stuff.
if doing this maybe rings (leaving the blocK alone ?)...
turn the crank and (in my case) installing new cams and variocam system around that same mileage, too, when the time comes.
.
Last edited by odurandina; 05-28-2010 at 06:48 PM.
05-28-2010, 10:10 PM
#25
Nordschleife Master
Run it to measure..shut it down...make a change.... run it to measure again... shut it down .... make a change ... if you are friends with the tester he can make the changes and retest...
I have even heard rumors that the FQS change can be made on the fly... by really why risk the DME if all you need is to get passed?
05-30-2010, 06:48 PM
#27
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Tuning in...
You can change FQS settings on the fly - won't hurt anything.
And it doesn't matter if your DME is US/Euro/ROW - FQS will adjust fuel (and timing in the appropriate setting).
The high HC (and it isn't that bad) is most likely due to our altitude. The NOX is more a function of timing, NOT being lean.
Stock-chip FQS settings probably won't get you lean enough... You need to pull fuel, and lower timing.
-Rogue
You can change FQS settings on the fly - won't hurt anything.
And it doesn't matter if your DME is US/Euro/ROW - FQS will adjust fuel (and timing in the appropriate setting).
The high HC (and it isn't that bad) is most likely due to our altitude. The NOX is more a function of timing, NOT being lean.
Stock-chip FQS settings probably won't get you lean enough... You need to pull fuel, and lower timing.
-Rogue
06-01-2010, 11:17 AM
#28
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So I should switch to the retarded setting with the leaner fuel setting?
Makes sense. I was going to go and test at lunch today. The readings were
better while just adjusting the AFM and throttle down just a tad. Exhaust still
smells funny to me. Don't think it is running rich anymore but still not a normal
exhaust smell.
Makes sense. I was going to go and test at lunch today. The readings were
better while just adjusting the AFM and throttle down just a tad. Exhaust still
smells funny to me. Don't think it is running rich anymore but still not a normal
exhaust smell.
06-01-2010, 11:56 AM
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Ok. Doing that today and will see the result. The analyzer we have does not measure in GPM (Grams Per mile) but I did see a change with just the adjustments. I will get back to you this afternoon hopefully with a passing grade.