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IIC missing on cyl1,4,5

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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 11:52 am 
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Im running 6 individual coils. Not 3 pairs. Is this perhaps the issue? I had the investors flow tested this AM and all are within 2 cc after 3 minutes.

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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 12:21 pm 
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I'm running individual coils, could this perhaps be my issue? 2) That testing each of the 3 coil pairs yields spark at the correct cylinder pairs. also I had all the injectors tested this AM and all flow within 2 cc of one another after 3 mins of operation.

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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 12:28 pm 
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The way you have your coils configured is just like if you had 3 waste spark coils.
Nothing wrong with this.

Just do as I said, go to the diagnostic and test each coil driver channel independently and make sure you get a good hot spark at each plug.
Do this visually with the actual plugs you will run (to verify the plugs are not internally shorted).
Verify each plug is not fouled or otherwise damaged.

Next do an injector test on each injector driver channel independently, verify each one has the same distinctive "click".
If the injector clicks and you have done flow testing today, we will assume that they work.

The critical thing is to test EACH DRIVER separate from the others so you dont fool yourself into thinking all is well.


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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 12:32 pm 
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I would suffel around the injectors and see if the problem follows the injector. That would at least rule them out.

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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 1:50 pm 
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Ok. So i have swapped injectors to see of it follows. Im thinking the "miss is due to too rich of a mixture. All the coils and all the injectors work and are in proper orientation. So my idle pulse width is at 1.306 i believe. Should it be closer to. 700-.900? And then turn.up the pw multiplication for startup? Of i unplug injectors it will actually idle up for a second until all the mixture is burnt then starts to lope. Does this make sense? Thank you for all of the help

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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 2:25 pm 
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Rich mixtures are harder to light off.

Make your injector idle offset time less positive or more negative .100ms at a time till you find a better operating point.


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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 3:38 pm 
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OK so I have not gotten a steady idle yet, car will idle and it will stay around 10 degrees but its still missing, it idles like I have cams in it, but they are stock, rechecked my cam and crank timing, nice loud spark from all plugs and injectors "click" loudly. could something be wrong with the IIc hardware?


Attachments:
accel enrichment.PNG
accel enrichment.PNG [ 55.67 KiB | Viewed 271 times ]
engine setup.PNG
engine setup.PNG [ 65.58 KiB | Viewed 271 times ]
injection parameters.PNG
injection parameters.PNG [ 64.07 KiB | Viewed 271 times ]
sensor cal.PNG
sensor cal.PNG [ 56.06 KiB | Viewed 271 times ]
start up.PNG
start up.PNG [ 50.05 KiB | Viewed 271 times ]

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69 subaru 360
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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 4:04 pm 
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are you sure your ignition drivers are going to the right coils and the coils are going to the right cyls?
I have no reason to suspect this, but it is an obvious question.

If all the coil drivers and injector drivers are doing their thing, and the log you sent shows you have good triggers and no other things to be concerned with, then the ECU hardware itself is not likely the culprit.


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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 4:11 pm 
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Injectors are 123456 sarting from the front. Coils. are 135 on the exhaust side 246 on intake. Thanks so much for your time again. When i drive the coils based on my setup. 7 fires 1 and the rest down the line. Same as injectors 3-4 are using 7 and 8.

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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 4:24 pm 
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so I give a sanity check to your setup, whats the firing order for your engine?


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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 4:51 pm 
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I don't recall how i have it. 165342?

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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 5:12 pm 
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I think all VR6's are 153624.

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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 5:36 pm 
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I copied this for my firing order and i have tried this phase setup ( it dint help) Your ignition and Injection phase are completely whacked.for a VR6 the firing order is 1 5 3 6 2 4 720 degree / 6 = 120Injection happens 330 degrees before IgnitionSo it should be intered like thisIf you are batch fire coils just check mark the 1 2 3 drivers like you have and double check your Plug wire order.0 Ignition90 Injection120 Ignition210 Injection240 Ignition330 Injection360 Ignition450 Injection480 Ignition570 Injection600 Ignition690 Injection

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05 s4-sold
04 a4 VR6
01 2.5rs (wrx)-sold
95 sc 300
92 240sx -sold
71 vw type 3(wrx)-sold
69 subaru 360
2002 A6 3.0 (winter beater)-sold


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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 6:08 pm 
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EuroWrench wrote:
I copied this for my firing order and i have tried this phase setup ( it dint help) Your ignition and Injection phase are completely whacked.for a VR6 the firing order is 1 5 3 6 2 4 720 degree / 6 = 120Injection happens 330 degrees before IgnitionSo it should be intered like thisIf you are batch fire coils just check mark the 1 2 3 drivers like you have and double check your Plug wire order.0 Ignition90 Injection120 Ignition210 Injection240 Ignition330 Injection360 Ignition450 Injection480 Ignition570 Injection600 Ignition690 Injection


Are you referring to the order specified by GTJeff?

The injection timing is not terribly relevant. Lets focus on ignition timing at present.


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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 6:10 pm 
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Yes sir. I used that firing order. And nate has sent me phase tables to try. So with how i javelin everything Wtf is up. Oh. I also have done a comp test. 165-170 across the board.

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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 6:47 pm 
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OK well 034 is the master of VR6 motors, I would expect that the setup Nate sent you will be proper provided you both agree with what cylinders correlate to what numbers.


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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 6:54 pm 
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And we do. That's why Im lost. And nate is very busy and hasn't been able to help me trouble shoot this very much. Wanna buy a VR swapped B6:(

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04 a4 VR6
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2002 A6 3.0 (winter beater)-sold


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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 8:08 pm 
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mach 2 with my hair on fire

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EuroWrench wrote:
And we do. That's why Im lost. And nate is very busy and hasn't been able to help me trouble shoot this very much. Wanna buy a VR swapped B6:(



Ok, now I have to ask if you are sure that each driver wire is going to the cylinder you think it should.

these type problems usually end up with a simple albeit boneheaded mistake ;)


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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 8:10 pm 
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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 8:20 pm 
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Well now im second guessing my work. Ill do it again in the morning. But drivers should fire corresponding cylinders correct?! Lol. Only reason i laugh is cause those has me all messed up. I've been a euro tech for 15 years and o feel like an idiot here. Stupid simple thongs.

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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Tue Aug 07, 2012 9:05 pm 
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mach 2 with my hair on fire

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The driver channels can be used for anything since we give you the ability to map a particular degree event for any number of channels. It makes the most sense to use a give channel for its numerical cylinder, but you dont have to do it that way.
Since you have some blown channels, you can probably understand that the channel is just a driver you can map for whatever cyl you want.

Do second guess your work, sometimes thats the only we we find we have made a mistake even though we are sure we have not.


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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Wed Aug 08, 2012 5:28 am 
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Just checked all my drivers, all are working and in the proper spot, Im going to pull my down pipe and weld my O2 bung in and double check that I am rich as hell, but judging by the plugs and my nose it is, I have my injector pulse at .900 and it idles better than it has since I started this post, I'll try and get a video on here so you guys can hear it, I'll leave it open DP so you can hear that it is indeed missing. Architect, I thank you for all the time you are putting into this with me.

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04 a4 VR6
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69 subaru 360
2002 A6 3.0 (winter beater)-sold


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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Wed Aug 08, 2012 9:54 am 
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Turn your accel enrichment off for now too. The setting in the map you uploaded are for TPS based enrichment, you'll likley have to drop the sensitivity way down for MAP based.

For now, just set the min and max PW for the accel enrichment to 0.

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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Thu Aug 09, 2012 10:21 pm 
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Ok. So now Im second guessing myself here. How could i have my phase tables right, have good compression in all cylinders and have a missfire? Just thinking out loud kinda. I took a video of it running but can't get it on here from my phone. Afrs are around 12 at idle. Plugs come out black. Both sets i tried did.

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04 a4 VR6
01 2.5rs (wrx)-sold
95 sc 300
92 240sx -sold
71 vw type 3(wrx)-sold
69 subaru 360
2002 A6 3.0 (winter beater)-sold


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 Post subject: Re: IIC missing on cyl1,4,5
PostPosted: Fri Aug 10, 2012 6:13 am 
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Overly rich can foul the plugs and cause misfire.

You could bump the dwell a little and see if the added energy will blow through the carbon and rich mixture.


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