Multi Cylinder Mis Fire Fun 

No problem. I'm still getting used to it myself. Gotta keep practicing.

No problem. Thanks for riding along! 👍

When I do intake pulls I like to start with throttle closed and cranking, that seems to produce the simplest wave forms to try and spot issues.I may have to resort to other methods but thats a good starting point.

I prefer 6 also for pressure stuff. I think just allowing the user to turn on or off the shading would be great.

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Thanks for tuning in💯💪

Yeah there was talk of actual pan removal on this. I'm hoping the boroscope pics will save us. It also creates alot more down time for the customer and then the age old question of who pays for the rental usually not the warranty company.

Crazy how some of them operate. Jumping threw hoops for these aftermarket warranty companies can be frustrating at times. I swear some companies are looking for any loop hole to deny the claim!

I'm no expert with mode 6 , but the next case study that I mention mode6 data I will try expand on it some. Thanks for watching!

I use both. I'm glad they play nice on the same PC. My P7 skills are still under construction 😆😂

Nice. Thank you for that.

I'm still on 7.1.13 stable. It only crashes when I make RU-vid videos 😅😀

It only had 59,xxx miles on it. I got a feeling it was a manufacturing issue that is starting to flare up. We actually have a TSB on cylinder wall issues concerning #7 . So who's to say that issue couldn't have happened in other cylinders. Just my thoughts.

Thanks Nick, I appreciate it!

This engine does weird things with intake valve timing and valve lift cranking and idling. (I'm actually in talks with Nissan now to get some clarification my self.) So comparing exhaust pocket to intake pocket on the same wave it kinda breaks the rules a bit. Just notice the bad cylinder had 12in.hg exhaust pocket vs. good cylinder had less than half of that. This engine has exhaust vvt intake vvt and variable valve lift vvel so lots of stuff going on. I did not unplug anything so this is raw data. Hope that clears things up some.

@@CartersDiagnostics fantastic please post Nissans reply … this can send us down that endless rabbit hole😉

@@CartersDiagnostics fantastic please post Nissans reply … this can send us down that endless rabbit hole😉

It seems more normal to me for the ignition to fire BTDC, but with fuel control codes stored,( because of how I disabled the fuel for cranking test.) So who knows the ignition strategy, plus I have a leaning tower that is not giving the correct location of TDC and that throws off all measurements using the peak as a base line. What is GMP?

@@CartersDiagnostics my English is poor. Here we call GMP the top position of the piston. How can I determine the exact top point of the piston when I do not have WPS?

You could put long screwdriver in the spark plug hole and crank the motor by hand until the screwdriver reaches it highest point. At that time its either Top dead center compression or Top dead center exhaust . Or if you have a scope and scan tool. You could sample the crank sensor and an ignition sync then read the commanded ignition timing on the scantool. Then Figure out how many degrees per toggle or transition of your crank sensor in 360 degrees of your crank rotation. You then could figure out where TDC will land on the crank sensor. So for example if your ignition timing is 10degrees BTDC then move to the right of your ignition sync how ever many transitions of your crank sensor would equal 10 degrees. That would theoretically TDC compression.

Honestly I have never tried, but I'm thinking it won't be that easy. I have went around the gateway to get scope captures of the network before.

@@CartersDiagnostics Thank you for the reply. Interesting experiment, my thinking is that if the scope can see the data packets so can the scan tool. I don't have a vehicle available to experiment at this time.

I decode messages, just to see if they can be decoded without errors. I have no idea what the messages mean. I figure if the message integrity is good and the Picoscope software can decode it, that tells me the cars ECU 's should be able to decode them. And I should look elsewhere for my issues.

@@CartersDiagnostics Thank you for the reply.

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