Boblog12 Posted February 21, 2013 Share Posted February 21, 2013 Hi All,Anyone any ideas what the problem could be...? please see below!My SV650s decides to lose the revs and cut out when im dropping down through the gears - crawling along on the motorway proved very scary as i ahve to continually restart the bike - thank god for queues!!!every now and again it wont start and flashes a Fl symbol on my control panel, then starts fine just after i turn the key off and on again...when it does cut out, or gets near to cutting out, it feels very sluggish and struggles to pick up the revs, then cuts out and takes a lot of revving to get it started again. its had a new battery and no recent problems, then this started!! i have bought oxford heated gloves and run these off the battery, but the bike has cut out when im not even using theseHELP PLEASE!!! thanks in advance! Quote Link to comment Share on other sites More sharing options...
Stu Posted February 21, 2013 Share Posted February 21, 2013 What year is the bike? If its carbs then it could be carb icing but then that wouldn't explain the fi light which suggests it fuel injected You should have a diagnostic plug somewhere that you can short out to read the error code it will show on the dash but you need to do it when fi comes on without turning the bike off Quote Link to comment Share on other sites More sharing options...
eastanglianbiker Posted February 21, 2013 Share Posted February 21, 2013 will the error codes not be stored in the ecu and be listed if u connect it up to the correct programs? Quote Link to comment Share on other sites More sharing options...
Boblog12 Posted February 21, 2013 Author Share Posted February 21, 2013 The bike is 2004, I'll have a look in my Haynes manual to get the codes on screen, if not are there any DVD riders who know how?Cheers for the help so far... Quote Link to comment Share on other sites More sharing options...
Boblog12 Posted February 21, 2013 Author Share Posted February 21, 2013 DVD riders?!? Thanks predictive text... I meant sv riders!!! Quote Link to comment Share on other sites More sharing options...
Tango Posted February 21, 2013 Share Posted February 21, 2013 Sorry Bob, can't help with the error code.......but maybe check that the fuel tank breather isn't blocked......sounds a bit like fuel starvation.... When it stops try opening the filler cap quickly and see if there some suction there.....which could indicate a vacuum forming in the tank due to insufficient air getting in via the breather...... Or buy a Triumph.....you can then hook a laptop up to it via a £10 cable off eBay and a free program called TuneECU and look at the error codes..... Quote Link to comment Share on other sites More sharing options...
Stu Posted February 21, 2013 Share Posted February 21, 2013 No they aren't stored in the ECU....well they are until you turn the ignition off then they disappear so when it does it you need to put it in dealer mode which on the sv I dont know how to do YET on mine there is a multi plug under the seat and you just put a bit of wire between the two pins and thats it its in dealer mode Quote Link to comment Share on other sites More sharing options...
Stu Posted February 21, 2013 Share Posted February 21, 2013 here ya go this will help for dealer mode and codes http://www.svrider.com/forum/showthread.php?t=110382 its almost the same as mine Quote Link to comment Share on other sites More sharing options...
megawatt Posted February 21, 2013 Share Posted February 21, 2013 Has it got the standard exhaust and air filter? Quote Link to comment Share on other sites More sharing options...
Stu Posted February 21, 2013 Share Posted February 21, 2013 Has it got the standard exhaust and air filter? that wont bring the FI light on the FI indicates a problem with the fuel injection system Quote Link to comment Share on other sites More sharing options...
Boblog12 Posted February 22, 2013 Author Share Posted February 22, 2013 Cheers for all the advice! if the breather pipe is blocked, how do i unblock it? is it simply by pushing something small and thin through it? Quote Link to comment Share on other sites More sharing options...
Boblog12 Posted February 22, 2013 Author Share Posted February 22, 2013 Oh and yes, it has the standard can and filter on it... Quote Link to comment Share on other sites More sharing options...
Stu Posted February 22, 2013 Share Posted February 22, 2013 Forget everything everyone has said you need to findnout the code first otherwise your pissing in the wind It might be a sensor going down or a loose side stand switch Trust me I know these injection systems inside out as I have owned a Suzuki injected bike for 7 years ok its not the same bike but its the same system Quote Link to comment Share on other sites More sharing options...
Fozzie Posted February 22, 2013 Share Posted February 22, 2013 Get it to a dealer and tell them all this! Either do the diagnostics at home, which I dont think is that hard or ask a dealer to do it for you It is an injection system on the K4 and if the FI light is coming on it will usually log a fault.What is annoying is a mate of mine had this issue. It bogged down and cut out, it was a mixture of a weak battery and the air filter was caked up. But it only did it when it got to motorway speeds, bogged down and then cut out.Though on this one I would trust Stu, hes got the expertise as he has the big brother to this bike! Always problems with them Suzukis Quote Link to comment Share on other sites More sharing options...
Boblog12 Posted March 9, 2013 Author Share Posted March 9, 2013 A guy from RAC had a play with it and thinks its the ecu, as you can hear the fuel pump prime when it works ok, then you hear nothing with the fi light flashin. We played around testin the fuel pump switch for correct earthin and even put a direct earth into the system to test it, an he reckons its whatever in the ecu that controls the earth for the fuel pump- maybe a loose connection or somethin? Is an ecu easy to swap out and replace if I get the parts? Cheers again for the help! Quote Link to comment Share on other sites More sharing options...
Tango Posted March 9, 2013 Share Posted March 9, 2013 Could be the Fuel pump itself on the blink........dunno if there's any way of testing it......gotta say that I'm not aware of ECU's themselves giving a lot of trouble.....but I could be wrong....... ECU itself is normally pretty easy to change as it just plugs in.....the only problem you may have is making sure it has the correct map in there for your bike...... Should've bought a Triumph.....could've done all that yourself via some free software.....and even turned the pump on and off in the diagnostic mode...... Anyway....I'd be looking at some way of checking the fuel pump if I were you...... Quote Link to comment Share on other sites More sharing options...
Fozzie Posted March 9, 2013 Share Posted March 9, 2013 Its just one component under the seat Unplug one and plug in the other. You can get them for a reasonable price on ebay Quote Link to comment Share on other sites More sharing options...
Stu Posted March 9, 2013 Share Posted March 9, 2013 did you read the code like I said when you had the problem??if the fuel pump isnt priming when it should that can be a number of things from the gear position sensor to the side stand switch without that code you are pissing in the wind Quote Link to comment Share on other sites More sharing options...
Tango Posted March 9, 2013 Share Posted March 9, 2013 Also from the SV rider forum:http://www.svrider.com/forum/showthread.php?t=117144Some interesting stuff.....well worth reading through..... Quote Link to comment Share on other sites More sharing options...
eastanglianbiker Posted March 9, 2013 Share Posted March 9, 2013 did you read the code like I said when you had the problem??if the fuel pump isnt priming when it should that can be a number of things from the gear position sensor to the side stand switch without that code you are pissing in the windwell i hope the wind is blowing your way and not this way Quote Link to comment Share on other sites More sharing options...
oslin06 Posted March 22, 2013 Share Posted March 22, 2013 ECU's dont often pack up and can be expensive I would still get the fault code to make sure before spending money, you could just run it down to your dealer if you can, and get them to give you the code reading if you can not get the gear to do it yourself ? I am sure it will be cheaper in the long run rather than guessingKeith Quote Link to comment Share on other sites More sharing options...
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