SV1000S Fi warning light.

[Irezumi]

Quick history, exhaust leak from join between rear header and collector, purchased new graphite gaskets. Also did valve clearances, oil and coolant + spark plugs for a full service. Put bike back together and started, running great, FI light comes on. I switch the bike off and realise the O2 sensor wasn't connected.

Re-connect the wire but the FI light wont go out after restart and when getting the Suzuki code up its comes up as C44, which is 'heated oxygen sensor'. Bar changing the sensor is there anything else I can do. Is the Suzuki ECU of this area smart enough to have a memory therefore will unplugging the battery for a while help?

I've ridden the bike for approx 5 miles and after this it came back on soon after restarting. Bike itself runs great!

[xX-Alex-Xx]

Try disconnecting the battery for a few hours. Worked on my K5 at least when I did something similar.
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DILLIGAF

[Tdibs]

Would chance trying suzuki dealer to clear codes with their diagnostic tool. Then start swapping parts if that fails to clear the code.
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Previous : 09 Vanvan 125| 02' Sv650s || Current: 1999 Xj600n | 1992 DR650 RSE | 2005 Fazer 1000

[Pete.]

Suzuki codes clear when you turn off the ignition.

Find the dealermode plug it will have a rubber cap and two small wires. Make it accessible when the ignition is on. Run the bike until you get the FI light up then stop the engine but leave the ignition on.

Short the two pins in the dealermode plug and the fault code will appear on the display. A paperclip will do it.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[Irezumi]

[xX-Alex-Xx]

Just buy an eliminator and a plug for the sensor hole in the exhaust.

https://www.ebay.co.uk/itm/194165761373
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DILLIGAF

[Pete.]

OE Suzuki sensor is just a shitty 3-wire narrowband sensor IIRC don't pay £300 get a 3-wire, a used one if you like.

Or spend the 13 quid on that eliminator Alex linked to.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[Fisty]

Had the same on the Busa, use an eliminator.
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Quietly and consistently taking the piss.
TL1000R | Hayabusa | ZXR400 | TL1000S | Bandit 400 V
Fatter and faster than Fret

[Irezumi]

Its a 4 wire on the sv. Thanks for the advice, will get the elimination kit.

[carbon90]

[Pete.]

Do you find that having the FI light n gives you an early rev limit? It's been a long while since I messed with Suzuki ECU's but I seem to remember the FI light be ing on invokes the neutral map which kicks the soft limiter in early. For sure wiring the clutch switch permanently closed does it.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[Irezumi]

No, did not find there was any limitation to revs. Bike ran fine apart from the FI light.

Have fitted the eliminator plug, however the sensor is well and truly stuck in the exhaust. Tried penetrating fluid and heat. Decided it was most likely going to damage the exhaust the way it was going so just cut the wire and left in situ.

Bike works fine as is, although could do with TB's balancing.

[steve the grease]