Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[jagonza1]

2003 roadglide has 103 motor 10/5 compression Komressor heads se 257 cam se race tuner true duals forcewinder.
when Motor was built I had a powercommander and it wouldn't accept map for new motor. they put in the race tuner. have had weird issues like breaker tripping and had error codes check which I don't know the number but dealer says its either bad ecm or coil.  when the bike gets an error code it seems to be running fine and no other gauge or light problems. any thoughts out there.

[JCZ]

What's the code that it throws?  Is there more than one error code?

After the error code comes up is the bike still running fine?

[jagonza1]

that was the problem I had as he forgaot the code number after he cleared it. he said that it was one code that meant either an ecm failure or coil front cylinder. I am waiting to see if it happed again.  I have had some issues with the gas milage on hi way vary from 36 to 45. a couple of main breaker trips..

[JCZ]

Did you check to make sure your plug wires are on tight?

If it's not throwing the code again, I'd not worry to much about it.

[jagonza1]

The wires were wer tight and new as of last summer as well as the plugs which were standard issue Harley.  The codes clear for now and hope it doesnt happen again.

[Twolanerider]

when Motor was built I had a powercommander and it wouldn't accept map for new motor. they put in the race tuner.

dealer says its either bad ecm or coil. 

I might be missing something here.  But....

You owned a Power Commander that had been working prior to an engine build.  Then immediately after that build your dealer wasn't able to get that previously functioning Power Commander to accept a map.  So they conveniently sold you a Race Tuner.  Then following apparently repetitive throwing of codes the same dealer said you have either a bad ECM or a bad coil; but didn't replace either one?  Don't know where/what the bike's problem might be.  But I'm not getting warm fuzzies about the dealer attempting to do the work.

[jagonza1]

Well the Santa Fe dealer put the race tuner  and engine build. I am waiting for the pwer Commander to comeback from Dyna teck but the code was read by an albuquerque dealership. and either way I am having weird feeling about the whole thing right now.

[Ed Ramberger - One_Screamin_Eagle]

2003 roadglide has 103 motor 10/5 compression Komressor heads se 257 cam se race tuner true duals forcewinder.
when Motor was built I had a powercommander and it wouldn't accept map for new motor. they put in the race tuner. have had weird issues like breaker tripping and had error codes check which I don't know the number but dealer says its either bad ecm or coil.  when the bike gets an error code it seems to be running fine and no other gauge or light problems. any thoughts out there.

There was a service bulletin to replace the breaker with a maxi fuse - but the real cause of the problem is a bad crimp at the wire connector.  That is a separate issue.

As far as codes - you need to be specific on what ones.

[timo482]

please remember  - if the ecm is programmed with sert - and then you plug in a powercommander that asssssumes its a stock ecm -

you are playing with FIRE - and it could cost you a PILE of bux to fix. all of those vendors - hd, the dealer, and the powercommander folks - are going to be pointing at the other guys telling you to "make them" fix it. it wont be pretty.

they are all treating bikes over 5 years old as old - and its a shame.

find a REAL tuner and pay what it takes to have the issues taken care of before you have a 4 figure engine bill. modern fuel injection systems do not respond well to, uh, messing. a 2003 bike could simply have a bad connector someplace.

one thing missing here - was the bikes engine worked on because something was wrong? or did it work just perfect and you fixed it? or was it blown up? the ecm could have been bad before and a mech asssssssumed the engine was bad, there could be bad connectors on the powercommander - tell us more about the history.

to

[Twolanerider]

please remember  - if the ecm is programmed with sert - and then you plug in a powercommander that asssssumes its a stock ecm

Power Commander makes no assumptions at all. It starts as a blank slate and simply makes + or - adjustments from whatever is currently mapped in the ECM.  If you don't want the PC to be wildly off base to start with don't preload any PC map at all.  Leave it blank and tune from whatever is current in the ECM. 

[glens]

Here's a somewhat rhetorical set of questions: 

How does a PC-* retard ignition timing?  That'd be easy; merely hold on to the coil signal before passing it along.

How does a PC-* advance ignition timing?  That'd be easy; merely hold on to the coil signal until just before the next time.

In either case, I wonder just how this affects the functionality of the Ion Sense output polling by the ECM which is surely perusing it a fixed time after sending the spark signal...

[Ed Ramberger - One_Screamin_Eagle]

Here's a somewhat rhetorical set of questions: 

How does a PC-* retard ignition timing?  That'd be easy; merely hold on to the coil signal before passing it along.

How does a PC-* advance ignition timing?  That'd be easy; merely hold on to the coil signal until just before the next time.

In either case, I wonder just how this affects the functionality of the Ion Sense output polling by the ECM which is surely perusing it a fixed time after sending the spark signal...

PC has it's own coil drivers and does it's thing based on what the HD ECM timing signal is.

ION sense adds fuel - PC won't defeat that

ION sense retards timing - PC will simply do it's thing on top of HD ECM.
 

[hawgzilla]

"ION sense adds fuel"------That's a new one.  You sure about that?

[glens]

Here's a somewhat rhetorical set of questions: 

How does a PC-* retard ignition timing?  That'd be easy; merely hold on to the coil signal before passing it along.

How does a PC-* advance ignition timing?  That'd be easy; merely hold on to the coil signal until just before the next time.

In either case, I wonder just how this affects the functionality of the Ion Sense output polling by the ECM which is surely perusing it a fixed time after sending the spark signal...

PC has it's own coil drivers and does it's thing based on what the HD ECM timing signal is.

ION sense adds fuel - PC won't defeat that

ION sense retards timing - PC will simply do it's thing on top of HD ECM.

I'm aware the PC has its own coil drivers.  My point is that if you're retarding spark 2° somewhere, it's easy-enough to do the math and say that'll be 1/180 of a crank revolution, wait until then after intercepting the signal, and send the new signal.  But if you're advancing spark 2° somewhere, there's no way predict how to send the signal 1/180 of a crank revolution before the ECM sends its spark signal, so what you'd have to do is hold onto the timing sent from the ECM this time, and send your own signal 359/180 later.  Obviously this would leave out a spark this time, so maybe the spark timing is always delayed by one full engine cycle from when the ECM sent it.

Now if you consider http://delphi.com/manufacturers/auto/powertrain/gas/ignsys/ionized/ you'll see that the Ion Sense circuit is passive and always functions immediately after a spark event.  The ECM "listens" to that circuit output and the ECM knows that what it's looking for is going to be happening a fixed time after the spark event was initiated.  So here we'd have a situation where the ECM is sending a spark signal, then listening, but the actual spark event didn't occur when the ECM thought it did (and the ECM has absolutely no way of knowing why this might be or to expect or even consider the possibility).  How can the Ion Sense system work properly under these conditions?  It's a crap-shoot at best.

So not only with a PC-* are you disabling closed-loop operation (if you had it) but you've just about got to be "dicking" with the Ion Sense system as well.  I would not consider this a cost-effective measure.  Saving a few bucks on a system to address fuel and spark timing, but also wasting monetary value already possessed.

I guess that's the main point I was getting at...

[Ed Ramberger - One_Screamin_Eagle]

"ION sense adds fuel"------That's a new one.  You sure about that?

Yes - 100% sure.  ION sense has the ability to add fuel and retard spark.  It has changed slightly over the years, but it does have the ability to do both.