F4-S pc3 problem - MVAgusta.net
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post #1 of 11 (permalink) Old 08-22-2013, 12:49 PM Thread Starter
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F4-S pc3 problem

Hello i have Mv F4-S i installīd pc3 and got my self decat pipe from Arrow this summer so i used open exhaust map from dynojet and the bike works fine i drag-raceīt the bike one weekend after these chanceīs and all good,

the weekend after thet i decided to lower the front end so i removed the front and to get to the triple tree and un plugd the ox sensor and day after i took the bike on the trailer in the rain for like 250km to the track and the bike run fine the first 1/4mile and the second,3,4 run it didinīt have any power after 9000rpm but the rpm kept rising, sometimes in 1 gear it chokes for like 1sec and then the power delivers, and in nutral it sounds like it backfires any idea for me

could it be the pc3 got wet from the rain and got shortcourcut so it running a litle lean
or ma be damage ox sensor ?

best regards from the only F4 in Iceland

Mv Agusta F4-1000-2005
Aprilia SXV550-2007
Suzuki rgv250m
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post #2 of 11 (permalink) Old 08-22-2013, 01:12 PM
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I believe you need to leave the o2 sensor capped off once you install a pc3. I would call dyno jet tech support to double check. Secondly you need a custom map built for your bike. The ones online are just base runs from the bike it was developed on so it's not at all accurate for your bike. That is why you have the poppin, lag time etc... All about fuel/air ratio.


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post #3 of 11 (permalink) Old 08-28-2013, 06:34 PM Thread Starter
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Originally Posted by dagmvagusta View Post
I believe you need to leave the o2 sensor capped off once you install a pc3. I would call dyno jet tech support to double check. Secondly you need a custom map built for your bike. The ones online are just base runs from the bike it was developed on so it's not at all accurate for your bike. That is why you have the poppin, lag time etc... All about fuel/air ratio.


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it should run on a basemap, and it did for a whole month this summer.

the bike seams to run fine cold soon as it gets hot is starts to run like itīs chokes now and then on all rpm curve from 3000-11000rpm ans some sort of back fire.

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post #4 of 11 (permalink) Old 08-28-2013, 06:42 PM
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You don't have a Lambda sensor on the 1000S exhaust. Check your connections, can you get to a dealer to have you TPS reset.
Have you tried putting the standard map back in to see what the bike does?
Check all connections.

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post #5 of 11 (permalink) Old 08-28-2013, 10:19 PM
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Quickest way to find out if its the PC is to disconnect it(leave it on the bike but just reconnect oem wires). If the bikes doesn't act up you know to contact PC. If its still doing the same thing then i'm sure folks on here could try to help you trace down the issue.
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post #6 of 11 (permalink) Old 08-29-2013, 09:20 AM Thread Starter
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Quote:
Originally Posted by Donsy View Post
You don't have a Lambda sensor on the 1000S exhaust. Check your connections, can you get to a dealer to have you TPS reset.
Have you tried putting the standard map back in to see what the bike does?
Check all connections.
there is no dealer for Mv in Iceland, iīm going to disconnect the pc and see if the bike runs right, i did not try the zero map but i chance maps last night and it didn't chance a thing still run like a idiot. so next thing is to cut out the pc.

thanks mateīs

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post #7 of 11 (permalink) Old 01-06-2014, 02:53 PM Thread Starter
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Originally Posted by Hordursp View Post
there is no dealer for Mv in Iceland, iīm going to disconnect the pc and see if the bike runs right, i did not try the zero map but i chance maps last night and it didn't chance a thing still run like a idiot. so next thing is to cut out the pc.

thanks mateīs
I'm back with the same problem, the pc3 works fine, i unplugged it and the bike still don't work, so as it seems to start choking when it gets hot I'm thinking spark plugs, the bike runs a bit rich so mabe i need warmer spark plug? any idea iridium or this brisk racing i have heard so good thing about?

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post #8 of 11 (permalink) Old 01-06-2014, 03:56 PM
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Hordursp,
Contact Adam on here who posts as Merc07, ditch the PC3 get a custom eprop from him and dowload the free softwear he has written to get you TPS reset, Adam knows the 1000S very well and can sort this problem.
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post #9 of 11 (permalink) Old 01-15-2014, 01:11 AM Thread Starter
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Originally Posted by jimboF4 View Post
Hordursp,
Contact Adam on here who posts as Merc07, ditch the PC3 get a custom eprop from him and dowload the free softwear he has written to get you TPS reset, Adam knows the 1000S very well and can sort this problem.
jimboF4
thx JimboF4

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post #10 of 11 (permalink) Old 01-15-2014, 02:32 AM
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That's seem like your EBS relay is playing up! Also check replace spark plugs

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