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CO value emissions fail in NCT

zurbfoundation · 2017-08-05 09:30:08

Retest this morning and a leak in the exhaust I repaired has the lambda value in range but the CO value has failed at .82% - over .30 is a fail Not sure it's a dipthane in the tank job - but the only other thing I can think of is spark plugs and a result of not burning the fuel correctly. Not only are the plugs old but…

05-08-2017 9:30am

#1

zurbfoundation

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Retest this morning and a leak in the exhaust I repaired has the lambda value in range but the CO value has failed at .82% - over .30 is a fail

Not sure it's a dipthane in the tank job - but the only other thing I can think of is spark plugs and a result of not burning the fuel correctly. Not only are the plugs old but they are out of a different make and model of car - would this back up my theory? A set of new plugs could help bring the CO value down?

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Comments

#2 05-08-2017 5:46pm

scannerd

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If plugs need going then would go ahead and change but doubt it will resolve the whole issue, your HC is also quite high, oil been changed, if nor this could impact as well.

If you going to just try again then i would have plugs, oil and air filter new - with dipthane or you have something like gunson gas tester to check if your improving with just plugs when it it might need a new cat in the end.

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