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running rich

posted by  Volvov70.98 on  Thu Dec 10 15:22 CST 2020
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hi friends i drive a 98 volvo v70 222k non turbo whats the correct way to find out why the car is running rich can i do it with a scan tool and what should i look for 1st








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running rich

posted by  KlausC on  Fri Dec 11 11:39 CST 2020
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last visit: Fri Oct 24 10:15 CST 2014
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If you have a check engine light, by all means check the codes.
If not, check for unmetered air entering the intake manifold - vacuum lines, bad intake hose, dirty MAF, exhaust leak before the CAT, stuck injectors, bad spark plugs,O2 sensor getting old...
--
Keeping it running is better than buying new








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running rich

posted by  will rehsper on  Fri Dec 11 10:55 CST 2020
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last visit: Tue Jul 3 14:55 CST 2012
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if the check engine light is on then yes do check for codes with a scan tool record and clear the codes to see if they come back

what are the symptoms that make you think that the car is running rich is the oil level going up due to fuel being dumped into the cylinders, rough running, or bad fuel economy

if no codes then you should check the fuel system
--
XC60 / Odyssey








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running rich

posted by  Volvov70.98 on  Fri Dec 11 15:02 CST 2020
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well i been codes p0133 slow response and p0422 below threshold i might have a bad cat injectors have not been change since i had the car since 2012 everything else i did new fuel pump oil changes on time should i change my injectors or smoke the car







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