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Registered
Join Date: Oct 2007
Location: North Wales UK
Posts: 127
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High Emissions
What can the cause be of high tickover emmisions be {petrol /fuel mixture }
Mot station says its very high at tickover ,but fine when revved Thanks Mark |
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08-14-2008, 11:09 AM
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Proprietoristicly Refined
Join Date: Jul 2001
Location: ~Carefree Highway~
Posts: 5,833
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A current thread;
early 944 smogging up the world In this case I would suggest the solutions from "mistahsinclair". I am not certain, does UK have oxygen sensors? GL John_AZ Last edited by John_AZ; 08-14-2008 at 12:44 PM.. Reason: elaborate due to O2 sensor Q? |
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08-14-2008, 11:34 AM
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Quality
Join Date: Oct 2007
Location: Philadelphia area and Morristown NJ
Posts: 951
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Perhaps a bit of fiddlin' with the spanners ought to do it. Make sure the wing and boot are in good nick!
... couldn't help myself  I think 'tick-over' = idle? and what emissions? Co2, Nox, etc? 
__________________
85.5 944 NA 5spd - Sold but not forgotten 89 951 Turbo S - Revival in progress...
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08-14-2008, 11:40 AM
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Registered
Join Date: Oct 2007
Location: North Wales UK
Posts: 127
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Ok thanks yeh tickover =idle
have read the thread and must admit i didnt realise theres a bypass venturi in the airflow meter for idle Propably what the cause is anyway have unscrewed it a couple of turns to weaken mixture {i take it unscrewing weakens tightening richens ?} No way of telling if its made a differnce without takeing it back to the garage to do a test And theres no cat or oxygen sensor on uk model as for emissions not sure which one he said,but its fuel air mixture Last edited by markt944; 08-14-2008 at 02:44 PM.. |
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08-14-2008, 02:36 PM
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