PC-III installed problems

[AZrider]

You can move this if you like to the tech forum I just wanted to grab some folks.

2007 FJR-ABS:

Added the G2 throttle cam, great product. Bought the PC-III for the FJR after everyone raived about the improvement as well. Installed it last night, a little bit of hassle with the cable routing but realized about 1/3 of the way through (after re-reading the Dynojet install) that the install for the Gen-2 bikes is a bit different witht the tank. Lots of bits and pieces underneath the tank and it was nice to get to know the machine a little better. Found the connector buried behind the FI rack and also the battery cleverly hidden on the right hand side of the fairing. Got everything hooked up and as it was late decided to start the bike. Man there's a lot going on under there!

It's been hot here in AZ land and so the garage temp was about 80F. Bike started but was "stumbling" at low RPM's when throttle was added (reved it a little). The idle never really went to 1500 RPMs or so like before when first starting. It was late so I went to bed and got up this morning and started the bike again, same problem. Stumbling when throttle added almost like there was no choke (electronically that is. I know the bike is fuel injected so let's not go there). This morning the bike actually stalled when I twisted the throttle quickly (never had that problem with the bike). :blink:

I disconnected the Oxy sensor as recommended and am wondering if I disconnected the wrong plug. I checked by pulling on the wire and also looked at photos from the site yesterday from a 2007 install that was posted here.

I really didn't think I would have any problems, done dozens of electronic and mechanical installations on engines on boats, motorcycles etc. I thought maybe there was no "FJR" program in the PC-III but the box says it's for the 2006 FJR so I'm still puzzled. Before I take the gas tank bolts out for the fifth time and check plugs I thought I'd think about it and ask for some advice from those of you who have already done the same install, maybe go back again and re-read some of the posts.

Thanks!

AZ

 

[Lake Powell]

I had a little of what you have mentioned after the install of the PCIII and the G2.

I did not disconnect the O2 sensor but I do get a little stumbling when reved quickly off of idle and it has not warmed up much.

I think if you run it a little and get it warmed up things may settle down, try that and report back.

You can IM me if you want to chat over the phone, good luck!

 

[AZrider]

I had a little of what you have mentioned after the install of the PCIII and the G2.
I did not disconnect the O2 sensor but I do get a little stumbling when reved quickly off of idle and it has not warmed up much.

I think if you run it a little and get it warmed up things may settle down, try that and report back.

You can IM me if you want to chat over the phone, good luck!

Lake Powell,

So you had the same "stumbling" when first started? I'm wondering why you didn't disconnect the O2 sensor? I think the bike will ride OK after it's warmed up but being a damned perfectionist (engineers are like that) I'm bothered by the stumbling. If I lived in Wisconsin or back in Northern California I would be more concerned waiting ten minutes for the bike to warm up.

AZ

 

[John_Dumke]

Misc Ideas, just thinking out loud.

I would hook up a laptop to make sure the correct map is installed. This is probably not the problem, but one thing to check.

I believe the O2 sensor is black on the 06/07, not gray like the Gen I bikes. It is located on the right side of fuel rail if memory serves.

Is the unit properly grounded, I think they want it grounded to the battery. Not sure if it would matter much.

Did you set the throttle position sensor to zero, using a Dynojet software on a laptop?

 

[Lake Powell]

I forgot to mention that I loaded the smoothness map.

My ground is not directly to the battery but to a ground loop I added from the battery that goes over to the left side fairing for a some accessories I have added.

Mine appears to run just a little rich initially which I think is one of the problems that was intentionally addressed with the stock map, mine will stumble just a little when blipped open if it is not warmed up and a little black smoke will come out of the mufflers leading to the running rich conclusion.

I did not remove the O2 loop because I wanted to see if it improved with it on, which it did, and also because I don't know where it is, because I'm an *****....

 

[MotorSWATCop]

This is the 02 sensor plug.

 

[AZrider]

Mike,

Thanks for the pics. I printed out some from yesterday and I'll check the plug with these new pics. It was late last night and you know how that goes.

Appreciate the help.

AZ

 

[AZrider]

OK,

Pulled the tank up for the last time and I got the O2 sensor connector correct. But thanks for the pics as it's always great to get confirmation. What I did last night was tug on the O2 wire from the sensor and feel behind the cowling and the wire under the heat shield and then did this about five times to make sure I wasn't pulling on a "loom" with multiple wires. So anyhow, bottom line is the correct connector got disconnected.

Here's the weird part.........yeah I know where else but on this site. I double checked all the tubes and pieces I moved out of the way and everything looked fine. Left the tank up and fired up the bike and stumble was less noticable. I haven't figured that one out yet.

I guess I'll just put back the pieces and ride it to see how it runs. :blink:

AZ

 

[Lake Powell]

AZ,

Sent you a PM with a link for the maps from PC.

Keep us informed about your progress!

Thanks-

 

[Wolfhound]

Wonder if you have a pinched vent line..........Did you reset the throttle position sensor after installing PC ?

 

[AZrider]

Put everything back together, fired up the bike, fast idle worked fine, bike rode great!

Don't know, maybe could have pinched a vent line the first time I put the tank back down? Really don't know. The bike performs very smooth now, no abrupt roll off and roll on which means the fuel is being delivered smoothly and not "off an on" to meet smog regs.

Thanks for reminding me, the next step will be to set the throttle stops on the PC-III. Well, I suppose nothing really comes without some struggle :dribble: .

From the short ride I took I think the PC-III is worth the price. It will be interesting to look at everyone else's maps and how they perform.

Thanks again for the link Powell. FJrobert, thanks for the suggestion on the pinched line, Motorswapcop, thanks for the great pics of the O2 sensor. This is a great site!

AZ

 

[tophog]

I am interested in how you ended up routing the harness on your 07. I installed mine last night and was at practicing my 101 foul words when trying to follow the instructions for routing under rear tank mount. Once I saw it was next to impossible aside from dismantling the apparatus under seat I gave up and just ran it over the top since I couldn't see anything to interfere with it. No seat time here yet but just running it in the garage after zeroing the throttle and installing the Muzzy slip-on map I immediately could tell it was much smoother. I'm just hoping it helps with the altitude surging issue! Fingers crossed but skeptical on that part.

 

[MotorSWATCop]

I am interested in how you ended up routing the harness on your 07. I installed mine last night and was at practicing my 101 foul words when trying to follow the instructions for routing under rear tank mount. Once I saw it was next to impossible aside from dismantling the apparatus under seat I gave up and just ran it over the top since I couldn't see anything to interfere with it. No seat time here yet but just running it in the garage after zeroing the throttle and installing the Muzzy slip-on map I immediately could tell it was much smoother. I'm just hoping it helps with the altitude surging issue! Fingers crossed but skeptical on that part.

I just removed the rear tank bolt; lifted the rear of the tank so the connectors fit through; and continued my routing.

 

[tophog]

Ah, I see. I was trying to make it more difficult then was. Oh well, I'm happy with the way I did it as removing it will be a piece of cake if need be.

I just removed the rear tank bolt; lifted the rear of the tank so the connectors fit through; and continued my routing.

 

[AZrider]

Tophog,

Motorswapcop was correct. That's what I did as well. I sat in a chair next to the bike and grumbled, tried to feed connectors the size of a small apple through the path, then realized I could loosen the bolts as the Dyno-Jet advised and it was there. After you get it connected the real trick is to squeeze two connectors into the space behind the FI plumbing where only one resided before the install. I also used a tie wrap to hold them in place and then tried to make sure the bends in the cable were not too extreme. The ground wire can run through the hole in the heat shield and then on top of it and "over" the frame between the gas tank and then it's an easy run into the battery compartment. I used some duct tape on top of the heat shield and the frame to tack the ground wire keep it from chafing.

AZ

 

[twodogs]

the real trick is to squeeze two connectors into the space behind the FI plumbing where only one resided before the install. AZ

Put one of them (the only one that will go there) on the left side.

Bill

 

[AZrider]

the real trick is to squeeze two connectors into the space behind the FI plumbing where only one resided before the install. AZ

Put one of them (the only one that will go there) on the left side.

Bill

Thanks, Bill.

Yeah, it was a little tight in there, one is out and to the left, other rests in line. What impressed me was how Yamaha got all that stuff in there in the first place.

I was going to set the stops on the throttle today even though the bike rides great. Guess I should go through the process then ask folks for their maps and how they perform. How's your PC-III working out for you?

AZ

 

[AZrider]

Reset throttle. Bike runs great. Neat to watch the numbers on the laptop with throttle changes. :clapping:

AZ

 

[MotorSWATCop]

Motorswapcop AZ

That's MotorSWATCop! I gave up on swapping a long time ago! :butcher: