Before i would start throwing money at ur problem, i would switch coil and plug 6 over to cylinder 4 or 2 and see if the code follows that cylinder. U could be soo unlucky that u bought a faulty coil pack. Luckily for u cylinder 6 is open and can be done in minutes

 

Yeah, I mean that's a good idea. I will try that on my trip home.

 

How many miles?
Try some fuel injector cleaner. My first choice is Berryman's B12 Chemtool.
Or "STP Super Concentrated Fuel Injector Cleaner" if Berrymans is unavailable.
Both at Walmart. Those are the only two I'd recommend.

You might have a vacuum leak, compression problems, etc but start with the assumption of a dirty injector.

 

How many miles?
Try some fuel injector cleaner. My first choice is Berryman's B12 Chemtool.
Or "STP Super Concentrated Fuel Injector Cleaner" if Berrymans is unavailable.
Both at Walmart. Those are the only two I'd recommend.

You might have a vacuum leak, compression problems, etc but start with the assumption of a dirty injector.

So I ran stp in this tank. No more misfire code.

But have P0021 and P0153 pending.
Camshaft position timing over advanced or system performance bank 2.

O2 sensor circuit slow response bank 2 sensor 1.


Open to ideas and suggestions.

 

^I actually really like the Royal Purple Max Clean.

 

It's got 330k. She's got some miles for sure.

It's noticeable though whe. I unplug the injector. I'm thinking this is a periodic misfire.

 

It's got 330k. She's got some miles for sure.
It's noticeable though when I unplug the injector. I'm thinking this is a periodic misfire.

A dirty injector is very different than a disconnected injector.

 

Now I'm wondering if I have a cam timing issue.

 

Before you do anything else, let that fuel cleaner do its thing, run the tank low, then refill with the best premium fuel you can get, like Mobil Premium from a busy station.
Be sure your battery posts and terminals are as clean as new, and no corrosion growing in the cables. Replace as needed.
Drive for a few days, clear the codes, and see which come back.
Also be sure there are no air leaks, NONE, in the big intake tube from the air filter to the throttle body.

 

I had a rip in one intake hose. I already replaced it.

 

Other than these codes and poor mpg, how does it run? Plenty of power and rpm's ? Quick starting? etc

 

I towed a trailer into the mountains the weekend.

12 ft steel single axle tilt deck 2x6 board top. Can am 800 xmr on the trailer. Can am ds90 in the bed. Plus kids and camp gear.

It burned more fuel than I expected but I thought it did alright. Tough for me to compare as I have owned diesels on the pass. I thought it did reasonably well.

 

Took out the cam sensor to have a look. It appears to be fine. Ran it with the cam sensor and vvt solenoid disconnected. Other than the Che k engine light and longer crank no difference.

 

Get some Hotshot Secret Stiction Eliminator and add it when you do your oil change.

 

Is that anything like archoil or Rev x?

 

It's just another mass marketed detergent cleaner, they're all the same if your read their MSDS, mostly naptha solvents.and a teaspoon of a proprietary ingredient.