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Old Apr 28th, 2008, 05:15 AM   #1
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Electronic Fool Injection

Rebuilt tc88 and increased to 95ci, have high flow heads, lifters, and larger throttle body.
It runs but i'm having trouble tuning the EFI. Got a Race tunner.
runs good but will wheeze or hiccup. Code light comes on.
i set the TPS according to the book. People are telling me the trottle body is too large and it is leanning out. The plugs read it is running plenty rich.

Basically, I have no idea what i'm doing.
Any ideas?
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Old Apr 28th, 2008, 10:35 AM   #2
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OK what map did you use for the Race Tuner?

Check for intake leaks make sure the intake is snugged up correctly.
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Old Apr 28th, 2008, 11:06 AM   #3
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did the steeler talk you into the race tuner? they are inferior to the pciii. wish you would have got up with us sooner. i'd double check for leaks then try to figure how to tune that thing. with all the mods you've done you would likely benefit with a dyno run. you really have to watch the steeler more than ever sense HD is having lean times now. you might want to think about an independent dyno guy with a good rep. what ever you do don't let the steeler talk you into one of there down loads. good luck
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Old Apr 28th, 2008, 05:53 PM   #4
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I have question for Skull2007 , what is wrong with the Harley download . I was going to have that done to my '08 Ultra after I put on the pipes and air cleaner.
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Old Apr 28th, 2008, 06:33 PM   #5
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once you put on a fuel management system on i.e, pciii, race tuner. the down load serves no useful purpose. too the only person who can adjust that down load is the steeler. i'm not real sure how these 08's deal with the pciii in so much as they have those O2 sensors. if i were in your situation i'd be doing some serious homework concerning this matter; could save yourself some money and grief . i'm of the the impression that once the pc111 came out it negated any usefulness of these downloads. as the pc111 can do anything and more than those downloads. But..... HD still has those downloads and the associated eqipment to pay for . . . so be careful or you could end up with the old hope this helps
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Old Apr 28th, 2008, 06:42 PM   #6
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I was all gung ho to add the pc3 until I started to do a little research. I sent an e mail to the techs at power commander about some of the issues on the '08's and this was their abswer.
"The PCIII RACE version bypasses the stock O2 sensors. By doing this we are able to adjust the entire RPM and throttle range. If you use the EX version then it retains the stock O2 sensors and you will not be able to make adjustments to the map of the PCIII in the closed loop area. "
I don't know what "not able to adjust the map in the closed loop area " means . Since this is the only thing I plan to do the bike I have been thinking about just doing the download so it runs right with the Stage 1 mods.
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Old Apr 28th, 2008, 06:45 PM   #7
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Keep in mine that the 02 sensors and the closed loop system on the new HD's, are a "closed loop bias system". This means the 02 sensors only make automatic adjustments to the A/F mixture up to 40 mph, then the main map takes over and makes no adjustments.
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Old Apr 28th, 2008, 07:54 PM   #8
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If you buy a new SERT, the dealer give you the little black interface box. you git no CD or anything. HD does everything on their computer. So you can't buy it and use any programs on the CD and cut them out of the money of Dyno time. And a download is a simple Band Aid, and not a fix.
I had a Sert on my 07 Wide glide the problem was the Dyno man couldn't make the bike run right, When you would run like 90 miles and pull in for gas when you tried to leave it kept wanting to die.
When I had the 103 Indy build the builder showed me the heads and pistons all carboned up at 4500 miles.
We put a Thundermax on it. It ran better than any bike I've ever had and it could adust itself. I even got better fuel milage with it as long as I didn't hammer it.
I took the Thundermax with A/T off the Wide Glide and was hoping I could use it on my 08 Touring bike but HD changed the ECM plug and got the DBW now so they threw everybody a kink.
Looks like I'm gonna have to buy a new TM when they are released for the 08 Touring bikes.
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Old Apr 29th, 2008, 06:57 AM   #9
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NOthing wrong with the SERT and it compares very well to the PC units.

However you will be stuck with narrow band o2 sensors on the HD with the SERT.

Biggest problem JMO is finding someone that will take the time to properly program the SERT, most HD techs will simply load up the maps until they find one that works best, but that doesn't mean it's the best.

Not a lot of people take the time to tune the SERT properly, Mike Rowland of Kuryakyn is very good and taught a class in So FLA recently, they found a lot of extra power in a build by tuning it correctly.

JMO as is Cardboards the ThunderMax is a very good unit, comes with wideband sensors and basically tunes it'self. You do have to get the base map to start with correct, and the theory that it will work 100% out of the box isn't completely right. There are settings in the system that you may have to adjust manually but they are not big problems.

The one we put on an 07 Softail down here would never run correctly, until we got it up to Daytona and Zippers had to reprogram it and upload new codes to the system, reset some basic settings then it started to work very well.

The Zippers thundermax with autotune is probably the best bet for o2 bikes and it's the way I would lean.

Then again I run a carb with S&S IST igntion to eliminate having to tune the iginition. Just have to setup the carb.
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Old Apr 29th, 2008, 06:32 PM   #10
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I read a lot of people call their local dealers the steeler. That is too bad. The dealer I have been with for the last 3 years is probably one of the better ones in the US. They will go out of their way to make sure the customer is satisfied. I discussed the download with the service manager and he will do what it takes to find the best download for my application. My experience with them so far is they do what they say. They had my '05 to do a paint touch up to fix a scratch they had put in during some service .they never questioned it they re painted the rear fender to fix it. Then it did not come out good the first time they re did the paint. because this took longer than it was supposed to the service dept. added a front fender skirt for free due to the delay. The parts guy had seen me looking at them so he found out I wanted one. When ever I go in I am treated like a valued customer. Their moto is "service after the sale" and everyone in the complete store follows it. We have dealers around here that I would say are the steeler type and if that was all I had to choose from I would probably not be so trusting of the dealer.
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Old Apr 29th, 2008, 06:49 PM   #11
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wouldnt it be great, if more companys......all companys....had the same attitude as your dealer!!!!!!!!!!.....congrats on finding a good place to do busisness with!!!!!...................
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Old Apr 30th, 2008, 04:46 AM   #12
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Quote:
Originally Posted by steveb View Post
I read a lot of people call their local dealers the steeler. That is too bad. The dealer I have been with for the last 3 years is probably one of the better ones in the US. They will go out of their way to make sure the customer is satisfied. I discussed the download with the service manager and he will do what it takes to find the best download for my application. My experience with them so far is they do what they say. They had my '05 to do a paint touch up to fix a scratch they had put in during some service .they never questioned it they re painted the rear fender to fix it. Then it did not come out good the first time they re did the paint. because this took longer than it was supposed to the service dept. added a front fender skirt for free due to the delay. The parts guy had seen me looking at them so he found out I wanted one. When ever I go in I am treated like a valued customer. Their moto is "service after the sale" and everyone in the complete store follows it. We have dealers around here that I would say are the steeler type and if that was all I had to choose from I would probably not be so trusting of the dealer.
A download from the dealer is something for minor changes. For anything major it is only a temp fix. To properly install a sert the bike has to be dynoed. When they dyno a bike the make a custom program for the way the bike is set up. That is why they charge so much for dynoing a bike.
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Old Apr 30th, 2008, 04:52 AM   #13
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For right now everything I am doing is minor. Pipes and a new aircleaner. If this will get me by until I can get what I really want .If the Thunder Max was available for my '08 I would have one of those. From I have found in my research that one seems to give the biggest bang for the money.
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Old Apr 30th, 2008, 11:26 AM   #14
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the thing about the pc3 is you can do it your self, with base down loads for your upgrades, the thing about the race tuner is you can set your bike up for specific upgrades, and is designed more for se accessories, but you can set up the cylinders..injectors.seperatly. adjust the timing and rpms. but to get the most out of any tuner is to have a reputable tech dyno it and set it up, this only needs to be done once if you install the accessories you want first, the down fall of the se race tuner is it is commputer spicific so if you have a comp go bad on you the tuner is worthless, where as the pc3 can be re used.
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Old May 1st, 2008, 05:14 AM   #15
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I had the dealer add the download yesterday .The bike runs very well no popping or hesitation in throttle response . Generally I am happy with the results. But I do feel if I had a EFI controller I could get more out of the bike.It just feels like there is more there that I can't get out of it. Hopefully ThunderMax will have a controller for the '08 soon so I can get my hands on it .
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Old May 1st, 2008, 10:53 PM   #16
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I am using the Harley race tuner which was recomended by a induvidual dyno / builder (Bragging Rights Racing) It works great! The race tuner lets you change all the factory settings. I have a 07 fatboy that retains almost no factory setting at all. He made it more rich at idle, which helps it run cooler in traffic, added in timing sooner, altered the air/fuel mixture across the board as well as raised my rev limiter to 6400 rpm. I added the new vance and hines big radius 2 into 1 and the screamin eagle big flow elbow and what a world of difference over stock..

Last edited by 07Fatty; May 1st, 2008 at 11:13 PM. Reason: bad spelling
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