Idle after fitting termi's

[cadwellmarky]

Hi all,
I've just finished fitting a pair of termi's + racing ECU + k&N filter to my 2008 696, bit of a chew on but got there in the end :mand:. But have come across something that has me puzzled, when I put the key in and switch on the engine it all comes up on the display as everything working fine, no warning lights of any kind? but having pressed the start button it's hard to get the bike to idle!! it just cuts out, but with the standard cans it would fire up no probs without using the fast idle, now I have to use the fast idle for a couple of minutes and still it might not idle?
when im on the bike riding, it cough an splutters in first and second gear with a lot of popping but up at the top it goes like a bloody rocket, can't understand it?? have I done something wrong or is there something that I should have done!! any suggestions would be great.
forgot to add when the bike has been ridden for about 20 minutes or so It idles no probs it's just that first start that I have the problem.

[zhango]

Marky, from your previous post this was an ecu from another bike so it will have the tps voltage at idle from when it was last used which may be different enough from yours to make it run like it is.

Unlike the Marelli ecu for my bike which has to have the tps set by software, the Siemens ecu that you have will learn your tps voltage at idle but you have to start it without moving the throttle or fast idle - try this a few times.

[cadwellmarky]

Marky, from your previous post this was an ecu from another bike so it will have the tps voltage at idle from when it was last used which may be different enough from yours to make it run like it is.

Unlike the Marelli ecu for my bike which has to have the tps set by software, the Siemens ecu that you have will learn your tps voltage at idle but you have to start it without moving the throttle or fast idle - try this a few times.

Thanks for the reply Zhango,
have tried your suggestion, seems to want to fire up, but not quite there yet? although it seems to be getting better with each press of the button, is there anything else that I could try!! or should I just persevere. cheers mate.

[zhango]

I think just switching the ignition on for a few seconds then switching off should tell the ecu the tps voltage - try that a few times. I don't see the need for the engine to actually start but not sure.

I understand the Marelli 5.9 that I've got so Siemens is new to me.

[cadwellmarky]

I think just switching the ignition on for a few seconds then switching off should tell the ecu the tps voltage - try that a few times. I don't see the need for the engine to actually start but not sure.

I understand the Marelli 5.9 that I've got so Siemens is new to me.

Gave it a go? seemed to last a little longer, and I managed to check RPM before it cut out, max was about 650rpm!! so well out :worried:

[Dukedesmo]

Sounds like it's running lean and needs the TPS and fuelling setting up to me.

Probably no faster at the top than before but feels it due to the weak bottom end making the surge feel stronger (like a 2-stroke powerband).

The most modern bike I work on is a 916 on which TPS is set 'manually' but on a 696 the TPS probably needs doing via software so likely to be a dealer/specialist job.

[zhango]

Dukedesmo - the Siemens ecu should learn what the tps voltage is at idle just by switching on the ignition, unlike the previous Marelli 5.9 with the linear tps that had to have that done by software.
Your 916 had the non-linear tps and you had to manually set the voltage output with butterflies completely shut.

Marky - it's normal for the bike not to idle at cold without using the fast idle but it should not splutter as you described.
I think I've run out of ideas - sorry :(

[cadwellmarky]

Sounds like it's running lean and needs the TPS and fuelling setting up to me.

Probably no faster at the top than before but feels it due to the weak bottom end making the surge feel stronger (like a 2-stroke powerband).

The most modern bike I work on is a 916 on which TPS is set 'manually' but on a 696 the TPS probably needs doing via software so likely to be a dealer/specialist job.

thanks for your reply, seems that your probably right? I rang the ducati dealers in Lincoln and it seems that it has to be reset via software, I was hoping that it would be a straight plug + play but it seems not to be the case!!
Not to worry, back to ducati on Thursday, more bloody money!!! :cry:

[cadwellmarky]

Dukedesmo - the Siemens ecu should learn what the tps voltage is at idle just by switching on the ignition, unlike the previous Marelli 5.9 with the linear tps that had to have that done by software.
Your 916 had the non-linear tps and you had to manually set the voltage output with butterflies completely shut.

Marky - it's normal for the bike not to idle at cold without using the fast idle but it should not splutter as you described.
I think I've run out of ideas - sorry :(

No probs mate, really thankful for the help, you got to try everything haven't you, I rang Ducati at Lincoln, and they agree with Dukedesmo? it seems it will have to be sorted with software, but as I said you got to try everything, so thanks for your input. :)