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Plan of Attack Worked! Passed Emissions Test - even with very small hole in header pipe. 200

posted by  someone claiming to be bricker on  Mon Oct 28 13:17 CST 2013 [RELATED]

Yesterday I worked on my "Plan of Attack" to pass the Emissions Test.

link posted here: http://www.brickboard.com/RWD/volvo/1579926/220/240/260/280/plan_attack_update.html

My 1990 240 has always failed the emissions test - every two years. Done the regular maintenance - clean throttle body, etc. to try and get it to pass, but it never did. Been to, at least, 3 mechanics and could never solve the underlying problem and the only way it would pass would be by getting a new cat...

Yesterday, after much Brickboard research, I replaced the Engine Coolant Temp sensor and put a new intake manifold on and today it passed!!!

Here are the numbers....

Test 1 - December 2011

ASM2525 Curb Idle
HC 118 - Fail 96 - Pass
CO% 0.63 - Fail 0.21 - Pass
NO 2312 - Fail

Test 2 - December 2011 - AFTER PUTTING ON A NEW CAT!

ASM2525 Curb Idle
HC 61 - Pass 31 - Pass
CO% 0.10 - Pass 0.00 - Pass
NO 458 - Pass

Test - October 2013 - AFTER new Intake Manifold Gasket and ECT sensor!
SAME cat as 2011

ASM2525 Curb Idle
HC 13 - Pass 46 - Pass
CO% 0.12 - Pass 0.02 - Pass

Love the Brickboard... And, thanks to all posters who helped!

Bricker





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New 1 Plan of Attack Worked! Passed Emissions Test - even with very small hole in header pipe. [200]
posted by  someone claiming to be bricker  on Mon Oct 28 13:17 CST 2013 >


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