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post #1 of 7 Old 03-23-2013, 03:34 PM Thread Starter
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Auto enginuity question.

I'm trying to isolate some injector knock I've got. I'm 99% sure it's my #8 as it also puts a fault on the CCT.

I've read about people being able to shut off the injectors with their AE, but I can't seem to find this function.

My actuation tab is empty so far no matter what I have selected.

I'm hoping to be able to shut off one by one and hopefully hear the knock change. I know I can build a switch box but I don't think I should have to?
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post #2 of 7 Old 03-23-2013, 11:56 PM
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The Cylinder contribution test and Injector Buzz test would be where I would start with your diagnosis. I do not remember the order that the contribution test is done in however, but if you can find that out then when your knock goes away you have the cylinder.

99 F350 CCLB 67k miles.

Sold: 01 Dodge cummins ECLB a few more mods to 353hp

Sold: 97 F250 SCLB, 5 speed 2wd. minor mods to 327hp

See a pattern? next I will have to find one of those 6 door jobbers...
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post #3 of 7 Old 03-24-2013, 02:24 AM Thread Starter
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I already did them. Buzz is fine (to be fair I didn't say that)

But I did the CCT and it shows #8 with a fault.

I'm trying to figure out how to manually shut off each injector like I've read you can.
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post #4 of 7 Old 03-24-2013, 02:55 AM
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Link to a similar question on PHP's forum

I have not been able to find a way to disable a specific cylinder with AE, except manually disconnecting the injector wire. The only one's I have seen that can disable the injectors are 6.0 and possibly more recent.

Sorry, I wish I could be more help, and maybe next time I will link CCT and Cylinder Contribution Test in my head, then I can help better.

99 F350 CCLB 67k miles.

Sold: 01 Dodge cummins ECLB a few more mods to 353hp

Sold: 97 F250 SCLB, 5 speed 2wd. minor mods to 327hp

See a pattern? next I will have to find one of those 6 door jobbers...

Last edited by Big Bird; 03-24-2013 at 02:58 AM.
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post #5 of 7 Old 03-24-2013, 03:56 AM Thread Starter
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I've read that you can. But can't find instructions on how. That's how the CCT works isn't it? By killing an injector one by one?

I do need to stop ring lazy and change my drivers side glow plugs. 1 is iffy and I did the passenger side. While I'm in there it's easy enough to unplug the injector I was just under the impression I could do it via AE.

To you or any other AE owners. I have two other questions.

When I hit "get vin", my truck just dies if it was running. If its off I can hear some relays being clicked, my dome light gets brighter then dimmer. But that's it, nothing else happens. Isn't it supposed to fill in all the drop menus? I have to do it manually.

Also under "actuations" is blank with enhanced power train selected as the system, under Abs or GEM I have options there but thy wont let me use them. Is that just the limitations of our PCM's?
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post #6 of 7 Old 03-24-2013, 04:14 AM
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Quote:
Originally Posted by schlutzer View Post
I've read that you can. But can't find instructions on how. That's how the CCT works isn't it? By killing an injector one by one?
I am unsure, I have only done it on the 97 in my sig, I saw somewhere that the SD's do it by rotational velocity.


Quote:
Originally Posted by schlutzer View Post
I do need to stop ring lazy and change my drivers side glow plugs. 1 is iffy and I did the passenger side. While I'm in there it's easy enough to unplug the injector I was just under the impression I could do it via AE.

To you or any other AE owners. I have two other questions.

When I hit "get vin", my truck just dies if it was running. If its off I can hear some relays being clicked, my dome light gets brighter then dimmer. But that's it, nothing else happens. Isn't it supposed to fill in all the drop menus? I have to do it manually.

Also under "actuations" is blank with enhanced power train selected as the system, under Abs or GEM I have options there but thy wont let me use them. Is that just the limitations of our PCM's?
Yes, you do need to replace the glow plug if you think it is getting iffy, if you don't you might get to do what I did on mine and that was patch the harness plug and put new VC gaskets on. As for the other stuff, I have no idea...

99 F350 CCLB 67k miles.

Sold: 01 Dodge cummins ECLB a few more mods to 353hp

Sold: 97 F250 SCLB, 5 speed 2wd. minor mods to 327hp

See a pattern? next I will have to find one of those 6 door jobbers...
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post #7 of 7 Old 03-24-2013, 04:25 AM Thread Starter
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I ohm'd them about 5 months ago and all 4 passenger ones were toast, and 1 drivers side was a bit higher than the others.

I bought 8 motor craft glow plugs. And I know I already did the much harder side. But the truck started all winter not plugged in ( and I'm in Canada eh---had to). But she's starting to puff some white and take a bit longer to start so this week ill be doing it.

Maybe make a junkyard run and build myself a simple breakout box like I've seen, I did just really like the idea of being able to shut them off with a click
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