So the second image looks like a service manual for a 2007 touring model....Would this be correct.
I don't think it would apply to abuell/dyna as well.
I did see something about the Ion Sensing Control in my SERT manual. Didn't pay to much attention to it at the time. That's good info to have....Thanks.

 

One image is from the "J" SERT manual and the other is from that Delpi PDF I linked to earler.

Don't know why all the '07 96" ECUs wouldn't be exactly the same. Can't say one thing or another about the Sporties/Buells, except that we got the Adaptive Fuel stuff from the latter, who've had it for a while now.

So, back to the original question. Would the particular aftermarket leads affect the system or not? I don't know, personally. If the major constructional difference were the color of the jacket then it should be okay, I'd think.

 

Just came back from an all day ride in the rain. misfiring and brakeing up bad on hard excell . The only other time I have had this happen is after washing and than rideing. If plug wires as I suspect any suggestions as to better wires or a fix??.

 

As other have stated... Those "Hi-Po" plug wires are a waste of $$$$ on a HD with EFI....

Plain and simple, the Coil on an EFI H-D has a 4th wire in the bundle that is for an item called "ION Sense"...

It is utilizing the Coil Secondary as a tool to determine proper or complete combustion, and it operates like radar.. it is literally pinging the combustion chamber and measuring the amount of free ions in the exhaust gas' prior to release to the pipes.... Therefore, it is the INTERNAL CONSTRUCTION that prevents most of these funky wires from operating correctly.... Color has nothing to do with it....

This is only found on Delphi ECM equipped bikes, Magnetti-Marrelli does not have this capability....

By using these funky wires, you will, at the very least, continually trigger a "No Combustion Detected" code....

The worst case is ignition break up from the incorrect type of core....

This subject, like an "Oil Thread"has been beat to death.....[sm=deadhorse.gif]

Please utilize the "Search Function"[sm=trust_me.gif][sm=type.gif]it works just fine....

 

Which is pretty much what I'd intended with "If the major constructional difference were the color of the jacket then it should be okay, I'd think."

My primary stance on the matter is to go with the stock components as a first choice. If one wants to dress up the old gal and can find wires constructed the same but wearing differing makeup, go for it.

Here's the schematic diagram from the Delphi PDF.

[IMG]local://upfiles/36555/A15FCA38309F4B33BD3F0BABF38E3D11.gif[/IMG]

 

That is why, if one chooses to go with those "Pretty Colors", you either have a carb (No ION Sense), or you use the SE wires (Direct, but pricey alternatives)....

Me, I always recommend that the owner stick with the stock Wires and Plugs....

No concerns about whether it will be a problem or not....

 

ION sensing is derived from the fact that as detonation happens IONIZATION at the plug tip changes the resistance to fire the plug . The actual detection to this change in resistance is internal to the coil and the signal is sent back to the ECM. Software tables are then calibrated using model based software. The way it is calibrated is important to understandwhy some folks are having trouble. A very sophisticated Combustion measurement system is placed on a development engine and actual cylinder pressures are recorded vs. crank angle degrees and coil operating ranges, as the engine is running at set speed and loads. By reading "NORMAL" outputs from the ignition module electronics to the ECM input and noting the change when detonation causes Peak cylinder pressures to rise, a model can be developed that as long as the signal from the ignition module is outputting the "expected NORMAL" signal back to the ECM no retard will occur. A change in resistance value and amount can be correlated to a given rise in pressure in the chamber during combustion.Detonation causes very large spikes in pressure even at very low levels of detonation, so the model can and does detect even before "audible detonation" that that can be heardeven happens. It is a very good system and very reliable with onebig exception. Detection is dependent on the values calibrated in the software that represent knock, and are based on a stock engine ( or a known modified engine such as the STAGE I,II etc.) with agiven set of Production intent parts.ie , Spark plugs, wires, and even compression ratio can and does change the resistance at the coil. So once folks start changing wires, Plugs to non-factory specs and modifying the engine cams, compression ratio etc, and even expected A/F ratios, and therefore combustion temperature the values derived form a production engine are no longer valid and may cause the software to "determine" that knock is present when it's not or fail to detect knock when it is.

 

With respect, there are no seperate knock sensors as such that I am aware of, and the use of non standard plugs and or wires may have an effect on the ecms ability to correctly determine knock or preignition.

WB

 

Reply from Acell;





Question:
Brand: ACCELMotor

I bought the Accel 300+ ignition wires that fits a 1999-Present Buell, Dyna Part number 175097 to change back to black from orange Screamin' Eagle wires I rode home less than 3 miles and read a forum that this might cause problems with the ION knock sensor on a new bike, I am to **** about the bike so took them off. H-D did not have a answer, one parts guy said not to run them and the dude next to him at the counter said the first was crazy and go for it. What do you guys think, am I OK run them? They cost me $29.00 and hate to feel like I pissed the money away. I am back to running S.E. wires now. Thanks, Jeff

Vehicle/Engine Specs:

Make: Harley-Davidson
Model: Dyna FXDB (Street Bob)
Year: 2007

Engine Type: 96"
Transmission: 6 Speed


Modifications: Stage 1

Discussion Topics: [/align]

Solution:

Jeff, Those wires are not intended to be used on the fuel injection applications. Send those back to the address below. When the 2007 application specific wires become available I will send you out a new set. Please also include a receipt of purchase. Prestolite Performance 10601 Memphis Ave. #12 Cleveland, OH 44144 Attn: Paul Thanks, Paul Grabowski 216.658.6316 paul.grabowski@mrgasket.com

 

That was a great and all-to-rare followup!