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sprinkles08
sprinkles08, ASE Certified Technician
Category: Oldsmobile
Satisfied Customers: 21588
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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Bravada 2002, I change sparks plug Iget a multiple randow

Customer Question

Bravada 2002, I change sparks plug Iget a multiple randow misfire
Submitted: 25 days ago.
Category: Oldsmobile
Expert:  david craig replied 25 days ago.

Hi Im David, what codes are you getting exactly besides p0300?

Customer: replied 25 days ago.
P0300 only
Expert:  david craig replied 25 days ago.

you will need a scan tool capable of reading live misfire data to narrow down the cylinder/s that are misfiring. or start checking for spark on each cylinder.

Expert:  david craig replied 25 days ago.

if you have spark on all cylinders then you will need to check for injector pulse at all the injectors....

Expert:  david craig replied 25 days ago.

or, with the engine running, start disconnector the coil packs one a time . if you unplug one and there is no change in how the engine is running, then thats the nisfiring cylinder.

Expert:  david craig replied 25 days ago.

any update?

Expert:  david craig replied 24 days ago.

hello???????

Expert:  david craig replied 22 days ago.

do you still need assistance?

Expert:  david craig replied 21 days ago.

checking in to see how its going

Expert:  sprinkles08 replied 20 days ago.

Hello and welcome to JustAnswer!

There are many possible causes for a multi cylinder misfire code. The problem could be fuel quality, an inaccurate sensor, injector issues; P0300 sets when there is a problem affecting multiple cylinders.

Was the code setting before the spark plugs were replaced?

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