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Gary, Technician
Category: Car
Satisfied Customers: 16498
Experience:  GM master tech for 15 years/ASE master tech for 20 years
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I have a 2002 oldsmobile alero with quad 4 that is idling

Customer Question

I have a 2002 oldsmobile alero with quad 4 that is idling rough then producing P0300
JA: Is the rough idle intermittent or consistent?
Customer: consistenat
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Yes, I have replaced plugs, coils, boots, coil housing, fuel regulator, intake gasket, water pump
JA: Anything else you think the mechanic should know?
Customer: There is black smoke and strong gas smell from exhaust
Submitted: 9 months ago.
Category: Car
Expert:  Gary replied 9 months ago.

are you able to monitor live data list and see which cylinders are misfiring ?

all that work was done to correct this problem ?

Expert:  Gary replied 9 months ago.

how are you making out ?

you can always get me back for FREE for any follow up any time with this question even after you rate me here at Justanswer

if you have any questions please ask as i do not get credit for my work until you rate me here at Justanswer