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Misfire code p0306 I️ changer distributor cap spark plug and…

Customer Question
Misfire code p0306 I️...

Misfire code p0306 I️ changer distributor cap spark plug and wires new fuel pump don’t understand why code is appearing

Mechanic's Assistant: Have you seen the misfire code before? Has the car been stalling?

Before I️ changed the distro cap and plugs yes but not after

Mechanic's Assistant: What is the model/year of your Chevy?

2001 Astro van

Mechanic's Assistant: Are you fixing your Astro yourself? What have you tried so far?

I️changed the distributor cap and spark plugs and wires

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

I️ also changed fuel pump

Submitted: 8 months ago.Category: Chevy
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Answered in 2 minutes by:
11/15/2017
Chevy Mechanic: Gary, ASE Certified Technician replied 8 months ago
Gary
Gary, ASE Certified Technician
Category: Chevy
Satisfied Customers: 1,912
Experience: Senior Technician
Verified

Hello! My name is Gary.
Welcome to JustAnswer.
I'm reviewing your question now, and will post back with a reply shortly.

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Chevy Mechanic: Gary, ASE Certified Technician replied 8 months ago

Hello there,

There are 3 ways to log misfire codes.

No spark, no fue, or low/no compression.

So a compression test, all spark plugs out, to see if cylinder 6 is abnormal.

Then swap injectors from 6 to another cylinder.

Gary

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Customer reply replied 8 months ago
I️ doubt that’s the problem I️ have no stalling issues before I️ changed my distributors yes but it runs good this morning it sounded a little funny but ran great for the rest of the day I️ use van for mobile detailing so am stoping and working for a hour or two
Chevy Mechanic: Gary, ASE Certified Technician replied 8 months ago

So this code of P0306 was not there before you changed the distributor or cap?

Have you checked ignition timing?

Gary

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Customer reply replied 8 months ago
code was there before and no I️ have not check timing
Chevy Mechanic: Gary, ASE Certified Technician replied 8 months ago

So you have just replaced cap, leads and plugs only?

And still P0306 correct?

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Customer reply replied 8 months ago
Yep but van run better
Chevy Mechanic: Gary, ASE Certified Technician replied 8 months ago

Is there spark from the lead now?

If it is running with a misfire still, it can be the no.6 injector.

Gary

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Chevy Mechanic: Gary, ASE Certified Technician replied 8 months ago

Hello again,

Do you need any further help?

I hope my advice has been of assistance to you.

Kind regards

Gary

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