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Created on: 04/08/11 10:31 AM
Replies: 106
Grn14
Location: Montana
Joined: 02/25/09
Posts: 15511
Maddevill
Location: Hayward, CA
Joined: 04/23/11
Posts: 2659
A possible cause...
10/19/11 9:21 AM
You may want to try replacing the water temp sensor. If it failed the computer will always think that the motor is cold, and fuel it rich at all throttle openings. It would also explain your popping on over run, excess fuel in the exhaust pipes.
Probably not too expensive to try, worth it just to eliminate it as a source of problems. 
Mad 
Owner of KNGKAW.
viperkillertt
Location: Spokane, WA USA
Joined: 04/08/11
Posts: 159
RE: Fuel Economy on a 2007 with PC3
10/19/11 10:45 AM
You may want to try replacing the water temp sensor. If it failed the computer will always think that the motor is cold, and fuel it rich at all throttle openings. It would also explain your popping on over run, excess fuel in the exhaust pipes.Probably not too expensive to try, worth it just to eliminate it as a source of problems.
This would not be tied to the temperature sensor for the guage, right? Because that works perfectly. And the fans kick on every time when the engine gets warm. I am guessing they dont work together and there are 3 separate water temp sensors, but i was curious.
* Last updated by: viperkillertt on 10/19/2011 @ 10:46 AM *
2007 Black ZX-14, Flies out, Power Commander 3, Broc's 4 into 1 SS Exhaust with Titanium can, Pipercross Air Filter, SpeedoHealer v4, HID Low Beams, Stebel Air Horn, Muzzy Fan, LSL handlebar, Concours seat, front brake SS lines, Buell Ulysses pegs, Carbon Fiber Rear Fender, Throttlemeister Bar ends, and much more.
Maddevill
Location: Hayward, CA
Joined: 04/23/11
Posts: 2659
RE: Fuel Economy on a 2007 with PC3
10/20/11 1:37 PM
This would not be tied to the temperature sensor for the guage, right? Because that works perfectly. And the fans kick on every time when the engine gets warm. I am guessing they dont work together and there are 3 separate water temp sensors, but i was curious.
No, the temp sensor is for the ECU to determine fueling while the motor is cold. I don't think they use the same sensor for the guage/ fan. 
Mad 
Owner of KNGKAW.
Grn14
Location: Montana
Joined: 02/25/09
Posts: 15511
RE: Fuel Economy on a 2007 with PC3
10/20/11 2:23 PM
Whatever's causing shitty mileage...you BETTER let us all know Viper!!!Sheesh...how many things could it be afterall????????????????FUC^!!!!!!!!!!!She couldn't be running friggin rich all the time...yer plugs would go SOUTH pretty quickly wouldn't they?How bout inside yer exhaust...what's THAT look like?Normal soot? 
Ya don't suppose possibly she's firin on only 3 cylinders do ya?It will run on 3.Maybe quite smoothly as well?
* Last updated by: blue07 on 10/20/2011 @ 2:27 PM *
viperkillertt
Location: Spokane, WA USA
Joined: 04/08/11
Posts: 159
RE: Fuel Economy on a 2007 with PC3
10/20/11 2:27 PM
I promise to let you all know once i dive into it. It wont be until probably mid December when i will have time to even think about it. I purchased my first home last week and i work average of 50 hours a week at my job. The house has a 4 car garage/shop attached to the house, so i will finally have the space to work on my projects. :)
I will do my best to video things if I feel they are relevant.
Thanks everyone.
2007 Black ZX-14, Flies out, Power Commander 3, Broc's 4 into 1 SS Exhaust with Titanium can, Pipercross Air Filter, SpeedoHealer v4, HID Low Beams, Stebel Air Horn, Muzzy Fan, LSL handlebar, Concours seat, front brake SS lines, Buell Ulysses pegs, Carbon Fiber Rear Fender, Throttlemeister Bar ends, and much more.
Danno
Location:
Southwestern Illinois
Joined: 12/18/11
Posts: 2142
RE: Fuel Economy on a 2007 with PC3
01/01/12 9:51 AM
Mine's showing 33 mpg on the digital readout, but I just went back to stock gearing from a +2 rear, so I think I'll do an actual MPG check the next time I fill up. Don't know if the PCIII/ATRE combo has anything to do with the readout.
'07 CPB Blue; ZGST windscreen with MRA X-screen adjustable spoiler, tube bar adaptor, PC III, ATRE,BMC air filter, modified stock seat with 2nd Look cover,Scorpion Flame Ti slip-ons, Galfer rotors front and rear, braided-stainless lines, C-F 10R front fender, C-F hugger, C-F inner fairing panels, painted foreman's fins with faux C-F inlay, polished rim lips wired for heated gear and accessories, Givi V35 side bags and E41 topcase with SW-Motech qd mounts
conneaut14
Location: Conneaut, OH
Joined: 04/05/09
Posts: 418
viperkillertt
Location: Spokane, WA USA
Joined: 04/08/11
Posts: 159
RE: Fuel Economy on a 2007 with PC3
01/05/12 10:02 AM
I cant wait until mine gets 38 MPG!!! That will be awesome!
2007 Black ZX-14, Flies out, Power Commander 3, Broc's 4 into 1 SS Exhaust with Titanium can, Pipercross Air Filter, SpeedoHealer v4, HID Low Beams, Stebel Air Horn, Muzzy Fan, LSL handlebar, Concours seat, front brake SS lines, Buell Ulysses pegs, Carbon Fiber Rear Fender, Throttlemeister Bar ends, and much more.
COOTER
Location:
South West Florida
Joined: 04/27/11
Posts: 1342
RE: Fuel Economy on a 2007 with PC3
03/13/12 12:07 AM
I read a post on here somewhere that another member on the forum could not get his bike past 150mph and he later found out that it was running on 3 cylinders but you should try this first step one start the bike cold for 2 seconds and shut her off now feel each pipe if you find a cold one that’s your problem cylinder check your plug and coil and get back to us!
Team panda (ride safe ride sober)
viperkillertt
Location: Spokane, WA USA
Joined: 04/08/11
Posts: 159
RE: Fuel Economy on a 2007 with PC3
04/01/12 3:29 PM
Hey Guys,
Well, i tested it out and it seems that the pipe closest to my left foot when i am riding was much cooler then the other 3. This was about 4-5 seconds after i started the bike. After about 10, they all were hot as hell!
I was just touching them with my bare finger. The middle ones were hot, and the outside one near my left foot was warm, but not hot.
2007 Black ZX-14, Flies out, Power Commander 3, Broc's 4 into 1 SS Exhaust with Titanium can, Pipercross Air Filter, SpeedoHealer v4, HID Low Beams, Stebel Air Horn, Muzzy Fan, LSL handlebar, Concours seat, front brake SS lines, Buell Ulysses pegs, Carbon Fiber Rear Fender, Throttlemeister Bar ends, and much more.
Danno
Location:
Southwestern Illinois
Joined: 12/18/11
Posts: 2142
RE: Fuel Economy on a 2007 with PC3
04/02/12 4:54 PM
I have been averaging nearly 39mpg with the PCIII, flies removed, slip-ons and a Muzzy adjustable advancer, which I have not touched since I got the bike. I was told it was mapped for slip-ons even though the p.o. had stock pipes Gearing is stock and the front wheel will come right up on it's own when you wind it out in 1st, just like my old H1.
'07 CPB Blue; ZGST windscreen with MRA X-screen adjustable spoiler, tube bar adaptor, PC III, ATRE,BMC air filter, modified stock seat with 2nd Look cover,Scorpion Flame Ti slip-ons, Galfer rotors front and rear, braided-stainless lines, C-F 10R front fender, C-F hugger, C-F inner fairing panels, painted foreman's fins with faux C-F inlay, polished rim lips wired for heated gear and accessories, Givi V35 side bags and E41 topcase with SW-Motech qd mounts
viperkillertt
Location: Spokane, WA USA
Joined: 04/08/11
Posts: 159
RE: Fuel Economy on a 2007 with PC3
04/02/12 4:59 PM
I have been thinking of adding the Muzzy Adjustable Timing advancer. What is the consensus? Even 30 around town would make me super happy. 22-24 is not good enough for me.
* Last updated by: viperkillertt on 4/2/2012 @ 5:00 PM *
2007 Black ZX-14, Flies out, Power Commander 3, Broc's 4 into 1 SS Exhaust with Titanium can, Pipercross Air Filter, SpeedoHealer v4, HID Low Beams, Stebel Air Horn, Muzzy Fan, LSL handlebar, Concours seat, front brake SS lines, Buell Ulysses pegs, Carbon Fiber Rear Fender, Throttlemeister Bar ends, and much more.
dragking
Joined: 04/22/11
Posts: 2464
RE: Fuel Economy on a 2007 with PC3
04/02/12 11:49 PM
I'm saying your problem is a combination of things. I went from averaging 32 mpg in town to 29 since I have installed the pipercross. I'm going back to OEM tomorrow! Also, I wouldn't add anything else until I get a decent mpg.
* Last updated by: dragking on 4/2/2012 @ 11:50 PM *
2006 Ebony Black ZX14, Flies gone, Power Commander V, Brock's CT-Single, Brock's Street/Race Map, Schintz Racing Flash, Brisk Racing Spark Plugs, BST Wheels with World Bearing Ceramic Bearings, Scott Rotary Steering damper, Ohlins KA544 shock, FPK Ohlins kit, Brembo GP4 RX Calipers, Brembo RCS 16, Brembo RCS 19 with no Drag Half Lever, Spielger Front and Rear Brake Lines, Braketech Axis Cobra Front Rotors, Galfer Rear Wave Rotor, Shorai LFX21A6 battery, Sato Racing frame sliders, Zero Gravity Racing Screen/MRA double bubble Racing Screen, Rizoma universal lux billet grip, Rizoma Next Fluid tanks, Rizoma Swing Arm Spools, Pro-Bolt tasty Nuts, Gilles rearsets, Sargeant seat, Geelong small tank protector, Geelong Hugger, Bike master magnetic oil drain plug, vortex gas cap, cox radiator guard, Xenon HI's and Low's.
viperkillertt
Location: Spokane, WA USA
Joined: 04/08/11
Posts: 159
RE: Fuel Economy on a 2007 with PC3
04/03/12 12:09 AM
Interesting, i have a piper cross air filter too! That would be crazy if that was causing the issue. I just cleaned it tonight, but if i can gain 3mpg by going stock, i would be ecstatic! I poured some fuel injection cleaner in the bike thusmorning, well, it ran great to work. Went i left 9 hours later, the bike was running on 2 or 3 cylinders and back firing like crazy. I got it home and took out 2 spark plugs. God, i hate changing plugs on this bike. 4 hours later i turned the bike back on and she ran great again. Stock air filter is the next fix. Is there another air filter that will help the fuel economy? I would prefer to use a reusable filter.
2007 Black ZX-14, Flies out, Power Commander 3, Broc's 4 into 1 SS Exhaust with Titanium can, Pipercross Air Filter, SpeedoHealer v4, HID Low Beams, Stebel Air Horn, Muzzy Fan, LSL handlebar, Concours seat, front brake SS lines, Buell Ulysses pegs, Carbon Fiber Rear Fender, Throttlemeister Bar ends, and much more.
dragking
Joined: 04/22/11
Posts: 2464
RE: Fuel Economy on a 2007 with PC3
04/03/12 12:35 PM
Is there another air filter that will help the fuel economy? I would prefer to use a reusable filter.
I don't think so! I'm installing the OEM back this afternoon. I will let you know for sure tomorrow. I haven't heard a decel pop since I've installed the pipercross though! lol Actually on cold starts I get a pop...pop...pop... the first time I get on the gas and decel after that no pop! I'm sure that a custom tune would get my mileage back to where it was but I rather get a tune for a OEM filter. Are you running Brock's map?
2006 Ebony Black ZX14, Flies gone, Power Commander V, Brock's CT-Single, Brock's Street/Race Map, Schintz Racing Flash, Brisk Racing Spark Plugs, BST Wheels with World Bearing Ceramic Bearings, Scott Rotary Steering damper, Ohlins KA544 shock, FPK Ohlins kit, Brembo GP4 RX Calipers, Brembo RCS 16, Brembo RCS 19 with no Drag Half Lever, Spielger Front and Rear Brake Lines, Braketech Axis Cobra Front Rotors, Galfer Rear Wave Rotor, Shorai LFX21A6 battery, Sato Racing frame sliders, Zero Gravity Racing Screen/MRA double bubble Racing Screen, Rizoma universal lux billet grip, Rizoma Next Fluid tanks, Rizoma Swing Arm Spools, Pro-Bolt tasty Nuts, Gilles rearsets, Sargeant seat, Geelong small tank protector, Geelong Hugger, Bike master magnetic oil drain plug, vortex gas cap, cox radiator guard, Xenon HI's and Low's.
viperkillertt
Location: Spokane, WA USA
Joined: 04/08/11
Posts: 159
RE: Fuel Economy on a 2007 with PC3
04/03/12 12:50 PM
I don't think so! I'm installing the OEM back this afternoon. I will let you know for sure tomorrow. I haven't heard a decel pop since I've installed the pipercross though! lol Actually on cold starts I get a pop...pop...pop... the first time I get on the gas and decel after that no pop! I'm sure that a custom tune would get my mileage back to where it was but I rather get a tune for a OEM filter. Are you running Brock's map?
Yeah, i am very curious what you find out with the stock filter. I know the piper cross allows a lot of air through. I have that same pop you are talking about on deceleration. It has always happened. Clearly one of the cylinders is getting a little fuel late. I used the broc tune for a while, i have tried 5 different maps all without any positive results. The broc map actually was very strange, it gave a ton of extra fuel across the whole board. It gave me very poor fuel economy. I cant remember which map i am currently using. I was hoping i could tune it to better fuel economy, but even when leaned out the fuel table, it used more fuel overall.
* Last updated by: viperkillertt on 4/3/2012 @ 12:51 PM *
2007 Black ZX-14, Flies out, Power Commander 3, Broc's 4 into 1 SS Exhaust with Titanium can, Pipercross Air Filter, SpeedoHealer v4, HID Low Beams, Stebel Air Horn, Muzzy Fan, LSL handlebar, Concours seat, front brake SS lines, Buell Ulysses pegs, Carbon Fiber Rear Fender, Throttlemeister Bar ends, and much more.
COOTER
Location:
South West Florida
Joined: 04/27/11
Posts: 1342
RE: Fuel Economy on a 2007 with PC3
04/03/12 11:12 PM
Viper I run a K&N and get 37.3 mpg but just a quick question have you set your suspension on your bike to your weight I just had mine adjusted by one of my track whore friends and my MPG/AVG numbers on the bike are increasing (better mileage) it may help!
P.S. are you going off the MPG/AVG # on your bike or are you calculating off your Trip/odometer ?
* Last updated by: COOTER on 4/3/2012 @ 11:17 PM *
Team panda (ride safe ride sober)
viperkillertt
Location: Spokane, WA USA
Joined: 04/08/11
Posts: 159
RE: Fuel Economy on a 2007 with PC3
04/03/12 11:25 PM
P.S. are you going off the MPG/AVG # on your bike or are you calculating off your Trip/odometer ?
I always manually calculate it. The meter is completely wrong. It says i get MUCH better fuel economy. It is completely useless
Viper I run a K&N and get 37.3 mpg but just a quick question have you set your suspension on your bike to your weight I just had mine adjusted by one of my track whore friends and my MPG/AVG numbers on the bike are increasing (better mileage) it may help!
Do you have any tips on adjusting it? No, i have never done that. The previous owner was probably 40-60 lbs heavier then me. He was a big guy.
I just found this.
Tune your ZX-14 Suspension
* Last updated by: viperkillertt on 4/3/2012 @ 11:29 PM *
2007 Black ZX-14, Flies out, Power Commander 3, Broc's 4 into 1 SS Exhaust with Titanium can, Pipercross Air Filter, SpeedoHealer v4, HID Low Beams, Stebel Air Horn, Muzzy Fan, LSL handlebar, Concours seat, front brake SS lines, Buell Ulysses pegs, Carbon Fiber Rear Fender, Throttlemeister Bar ends, and much more.
dragking
Joined: 04/22/11
Posts: 2464
RE: Fuel Economy on a 2007 with PC3
04/04/12 12:45 AM
Just on a short ride (20 minutes) the difference was instantaneous. I'm back to 32 mpg and I change gear at 4k rpm, bleep the throttle etc. Didn't get on the highway but was getting 34mpg at 55mph in 4th gear.
It just tells you that those pipercross filter do let more air in!
2006 Ebony Black ZX14, Flies gone, Power Commander V, Brock's CT-Single, Brock's Street/Race Map, Schintz Racing Flash, Brisk Racing Spark Plugs, BST Wheels with World Bearing Ceramic Bearings, Scott Rotary Steering damper, Ohlins KA544 shock, FPK Ohlins kit, Brembo GP4 RX Calipers, Brembo RCS 16, Brembo RCS 19 with no Drag Half Lever, Spielger Front and Rear Brake Lines, Braketech Axis Cobra Front Rotors, Galfer Rear Wave Rotor, Shorai LFX21A6 battery, Sato Racing frame sliders, Zero Gravity Racing Screen/MRA double bubble Racing Screen, Rizoma universal lux billet grip, Rizoma Next Fluid tanks, Rizoma Swing Arm Spools, Pro-Bolt tasty Nuts, Gilles rearsets, Sargeant seat, Geelong small tank protector, Geelong Hugger, Bike master magnetic oil drain plug, vortex gas cap, cox radiator guard, Xenon HI's and Low's.
dragking
Joined: 04/22/11
Posts: 2464
RE: Fuel Economy on a 2007 with PC3
04/04/12 5:14 PM
Got on the highway and saw everything from 38 mpg to 47 mpg!!!! I think in 5th at 3900 rpm doing 65mph I was getting 38/39 mph well over 40 mpg going down a slope. All I did is put the OEM back in, I did take the metal screen on the back out though!
2006 Ebony Black ZX14, Flies gone, Power Commander V, Brock's CT-Single, Brock's Street/Race Map, Schintz Racing Flash, Brisk Racing Spark Plugs, BST Wheels with World Bearing Ceramic Bearings, Scott Rotary Steering damper, Ohlins KA544 shock, FPK Ohlins kit, Brembo GP4 RX Calipers, Brembo RCS 16, Brembo RCS 19 with no Drag Half Lever, Spielger Front and Rear Brake Lines, Braketech Axis Cobra Front Rotors, Galfer Rear Wave Rotor, Shorai LFX21A6 battery, Sato Racing frame sliders, Zero Gravity Racing Screen/MRA double bubble Racing Screen, Rizoma universal lux billet grip, Rizoma Next Fluid tanks, Rizoma Swing Arm Spools, Pro-Bolt tasty Nuts, Gilles rearsets, Sargeant seat, Geelong small tank protector, Geelong Hugger, Bike master magnetic oil drain plug, vortex gas cap, cox radiator guard, Xenon HI's and Low's.
viperkillertt
Location: Spokane, WA USA
Joined: 04/08/11
Posts: 159
RE: Fuel Economy on a 2007 with PC3
04/04/12 5:23 PM
Got on the highway and saw everything from 38 mpg to 47 mpg!!!! I think in 5th at 3900 rpm doing 65mph I was getting 38/39 mph well over 40 mpg going down a slope. All I did is put the OEM back in, I did take the metal screen on the back out though!
Oh, ok, so you are not manually calculating it, but using the computer? That is seriously inaccurate. Mine was about 4-5mpg off from reality. If you can check it at the next fill up, i am very curious. Thanks for the update. One other question, is there a reason you were not in 6th gear at 65? My bike has tons of power even at 55 in 6th gear, enough to overtake just about anyone. Why do you chose to cruise in 5th?
2007 Black ZX-14, Flies out, Power Commander 3, Broc's 4 into 1 SS Exhaust with Titanium can, Pipercross Air Filter, SpeedoHealer v4, HID Low Beams, Stebel Air Horn, Muzzy Fan, LSL handlebar, Concours seat, front brake SS lines, Buell Ulysses pegs, Carbon Fiber Rear Fender, Throttlemeister Bar ends, and much more.
Danno
Location:
Southwestern Illinois
Joined: 12/18/11
Posts: 2142
RE: Fuel Economy on a 2007 with PC3
04/04/12 6:16 PM
An 8% error in onboard computer calculated fuel mileage would coincide with the 8% factory speedo error. What about with the Speedo Healer?
'07 CPB Blue; ZGST windscreen with MRA X-screen adjustable spoiler, tube bar adaptor, PC III, ATRE,BMC air filter, modified stock seat with 2nd Look cover,Scorpion Flame Ti slip-ons, Galfer rotors front and rear, braided-stainless lines, C-F 10R front fender, C-F hugger, C-F inner fairing panels, painted foreman's fins with faux C-F inlay, polished rim lips wired for heated gear and accessories, Givi V35 side bags and E41 topcase with SW-Motech qd mounts
viperkillertt
Location: Spokane, WA USA
Joined: 04/08/11
Posts: 159
RE: Fuel Economy on a 2007 with PC3
04/04/12 6:59 PM
An 8% error in onboard computer calculated fuel mileage would coincide with the 8% factory speedo error. What about with the Speedo Healer?
Well 2 things, first I have a Speedo Healer. But also, a speedo offset does not always mean your odemeter is off. Many manufacturers adjust the speeedo on purpose, but the odometer is set correctly. My 2000 Jeep grand Cherokee is one that has this. The speedo is off by 4-5mph at 60mph, but the odometer is right on. I have tested my speedo on my bike with a GPS and the odometer is spot on even though the Speedo is slightly off. At 60 it was only off a tiny bit.
If you have an android phone, you can download a gps software that will tell you your speed plus your mileage. I did a 30 mile trip through town and on the freeway and the odometer was perfect. It really surprised me. The app is free.
2007 Black ZX-14, Flies out, Power Commander 3, Broc's 4 into 1 SS Exhaust with Titanium can, Pipercross Air Filter, SpeedoHealer v4, HID Low Beams, Stebel Air Horn, Muzzy Fan, LSL handlebar, Concours seat, front brake SS lines, Buell Ulysses pegs, Carbon Fiber Rear Fender, Throttlemeister Bar ends, and much more.
dragking
Joined: 04/22/11
Posts: 2464
RE: Fuel Economy on a 2007 with PC3
04/04/12 10:49 PM
Why do you chose to cruise in 5th?
Just because I'm really greedy when it comes to power
I would put it in 6th gear if I'm going to be riding steady for a long distance and traffic is light. Sometimes I even use 4th on the highway. My bike came with D & D slip ons. I upgraded to Muzzy slip ons and took the flies out and asked a tuner to tune the bike for fuel economy. Then he occurred to me that I was riding a 14.... I guess I got corrupted by power!
yeah the computer is off but it's a baseline we can compare bikes with. For instance mine would say Range: 120 miles and I would reset the odometer and when it's time to feel up again my mileage would be something like 110. There is too many variables for the computer to be accurate... gas quality, map, road characteristics etc, etc Plus to be real accurate you would have to ride it until it's completely empty!
For sure you should replace the pipercross and re-install Brock's map. Probably e-mail them so you sure you are installing the correct one.
I did a 30 mile trip through town and on the freeway and the odometer was perfect. It really surprised me. The app is free.
I will get the app and check it out!
* Last updated by: dragking on 4/5/2012 @ 12:23 PM *
2006 Ebony Black ZX14, Flies gone, Power Commander V, Brock's CT-Single, Brock's Street/Race Map, Schintz Racing Flash, Brisk Racing Spark Plugs, BST Wheels with World Bearing Ceramic Bearings, Scott Rotary Steering damper, Ohlins KA544 shock, FPK Ohlins kit, Brembo GP4 RX Calipers, Brembo RCS 16, Brembo RCS 19 with no Drag Half Lever, Spielger Front and Rear Brake Lines, Braketech Axis Cobra Front Rotors, Galfer Rear Wave Rotor, Shorai LFX21A6 battery, Sato Racing frame sliders, Zero Gravity Racing Screen/MRA double bubble Racing Screen, Rizoma universal lux billet grip, Rizoma Next Fluid tanks, Rizoma Swing Arm Spools, Pro-Bolt tasty Nuts, Gilles rearsets, Sargeant seat, Geelong small tank protector, Geelong Hugger, Bike master magnetic oil drain plug, vortex gas cap, cox radiator guard, Xenon HI's and Low's.
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