Chasing down cyl. 2 misfire (P0302)

[alvaroemg]

Never mind, its raining, don’t want to get wet lol

 

[Road Trip]

Never mind, its raining, don’t want to get wet lol

Copy that. I've never done my best/most methodical work in a cold rain. (!)

Reading in between the lines of this thread, you are in it to win it, so I have no
problem waiting for weather conducive to a quality repair session.

Standing by, awaiting further data.

Cheers --

 

[alvaroemg]

Here goes to being a middle age man with no unlimited amount of cash at hand..

Gotta work monday, so I guess i don’t have the time to wait for the rain to subside

 

[Orpedcrow]

Gettin’ after it!

Glad compression looks as good as it does.

 

[alvaroemg]

Well, everything is installed. Fired right up, cel came on a few seconds afterwards. Still multiple misfires. Waited a few minutes, shut it off, cleared codes, start it up and cel came up.

It’s been about 10 minutes, trucks warmed up now, i shut it off, cleared cel, started it up, and cel hasn’t popped up.

Keep in mind, old bosch sparkplugs are installed. Waiting for 4 more plugs on sunday.

Im still sitting here watching my dashboard and still no cel.

Ill upload a quick video of o2 sensors data.

Edit: video here

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[alvaroemg]

Drove around for a good 35 minutes and the cel was pretty much gone.. until now, multiple misses.

 

[Road Trip]

Keep in mind, old bosch sparkplugs are installed. Waiting for 4 more plugs on sunday.

Having those plugs dribble in a few at a time is crazy. What's up with that?

Anyway, once you get all -8- plugs installed + new wires + cap + rotor,
please disconnect the battery for at least 30 seconds so that any bogus
tuning around the obvious misfires can be cleared so that we start with
as clean a slate as possible.

And just to make sure everything is as factory as possible, it will be good
to also verify that the Cam Retard is also within spec.

Best of luck on Easter! Hope you find that smooth-running egg. :0)

 

[alvaroemg]

Having those plugs dribble in a few at a time is crazy. What's up with that?

Anyway, once you get all -8- plugs installed + new wires + cap + rotor,
please disconnect the battery for at least 30 seconds so that any bogus
tuning around the obvious misfires can be cleared so that we start with
as clean a slate as possible.

And just to make sure everything is as factory as possible, it will be good
to also verify that the Cam Retard is also within spec.

Best of luck on Easter! Hope you find that smooth-running egg. :0)

New Cap, rotor and wires are already in. Just waiting on the plugs.

i’m pretty confident cam retard will be within the +-2 margin. We’ll see, i’m getting my obd2 dongle tomorrow.

 

[alvaroemg]

Having those plugs dribble in a few at a time is crazy. What's up with that?

ACDelco has a 4 pack on Amazon for $4.90. I had purchased 2 sets.

On delivery day, only 2 SP showed up. I called Amazon and explained the situation, they assured me 2 more 4 packs would ship next day. Ok, delivery came and only 2 SP showed up again. I chat Amazon this time and go through the whole ordeal again. They tell me they can refund me $4.90 for a 4 pack since it’s what I’m missing. I said ok, and I placed another order for 4 SP this time for $10. Those are the ones coning Sunday.

CORRECTION: SP delivery is tomorrow Saturday

This is Delcos 4 pack listing thats obviously false

 

[2drXmobb]

It's a healthy motor , have you diagnose the ignition coil?

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Throw some fuel injector cleaning hopefully the spider injectors aren't clogged . I had a weird misfire for a whole year couldn't figure it out even to it to the dealership to diagnose it would magically disappear. Eventually it just went away