Emissions test failed
12-12-2006, 01:16 AM
#16
Nordschleife Master
Why just vent it to the atmo for a short period, why not convert to a air oil seperator instead? And vent that to atmo, it is alot neater and you wont get oil all over everything. would be a good idea to adjust the CO mix at idle with O2 sensor disconnected.
12-12-2006, 01:19 AM
#17
Addict
Rennlist Member
Rennlist Member
What O2 sensor - Non cat euro cars don't have one LOL another reason for installing cats. I may well consider converting to oil separator or GTS style venting at somestage. Just want to get it on the road first.
12-12-2006, 04:01 AM
#18
Instructor
Join Date: Nov 2006
Location: Marietta, GA
Posts: 166
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by byrdman454
I guess if you have to do a dyno rolling test, a catless 928 will not pass. My car seems to be in a good state of tune with a MAF and LH less than 6 months old. Thank goodness this is over. No more emissions testing for 96-older cars starting next year!
02-19-2007, 03:52 AM
#19
Addict
Rennlist Member
Rennlist Member
Success
My 88 SE passed it's IM240 test today. I cheated. I had set the base emissions without cat or airpump back to 1% CO standad for a None CAT None O2 sensor car, and was going to go with that. However the two month wait for a test forced me into fitting a Cat with no O2 sensor (temporarily) to get the SE through the test. I increased the base mixture to about 1.1%CO to give the CAT something to work with. The cat will come off and back on goes the original front muffler before the car goes to the Compliance Engineer.
Results were - with Mikes results posted for future ref.
pass meas
g/km g/km
0.50 1.64 HC US Mike
0.93 2.77 HC AUS Jon Test 1 fail
0.93 01.2 HC AUS Jon Test 2 PASS
9.32 8.93 CO US Mike
9.30 43.40 CO AUS Jon Test 1 fail
9.30 4.7 CO AUS Jon Test 2 PASS
1.24 3.12 Nox US Mike
1.93 1.38 NOx Aus Jon Test 1 pass
1.93 0.23 NOx Aus Jon Test 2 PASS
My 88 SE passed it's IM240 test today. I cheated. I had set the base emissions without cat or airpump back to 1% CO standad for a None CAT None O2 sensor car, and was going to go with that. However the two month wait for a test forced me into fitting a Cat with no O2 sensor (temporarily) to get the SE through the test. I increased the base mixture to about 1.1%CO to give the CAT something to work with. The cat will come off and back on goes the original front muffler before the car goes to the Compliance Engineer.
Results were - with Mikes results posted for future ref.
pass meas
g/km g/km
0.50 1.64 HC US Mike
0.93 2.77 HC AUS Jon Test 1 fail
0.93 01.2 HC AUS Jon Test 2 PASS
9.32 8.93 CO US Mike
9.30 43.40 CO AUS Jon Test 1 fail
9.30 4.7 CO AUS Jon Test 2 PASS
1.24 3.12 Nox US Mike
1.93 1.38 NOx Aus Jon Test 1 pass
1.93 0.23 NOx Aus Jon Test 2 PASS
