The bike’s a 2014 Pani 1199 but I don’t think this issue is specific to that model hence I’m posting here. The bike has a MAP sensor issue on the vertical cylinder, error code comes up as P0106 which is an open circuit or short to ground. The connector has a +ve supply (with key on) at pin 1 and a ground at pin 3, that’s the 2 outer pins/holes in the connector on the left in the photo. The +ve power is supplied from the ecu at 4.995v which is the correct range of 4.75-5.25v. The -ve/ground wire runs back to the ecu. The centre pin/hole carries the signal back to the ecu as the pressure in the manifold changes. wiring diagram here, the middle of the 3 blocks highlighted in blue is the MAP sensor on the vertical cylinder. By rights there shouldn’t be any voltage between the centre pin in the connector and ground but there is, 4.75v . To my mind this suggests the centre pin, ie the purple wire, is getting a power supply from somewhere it shouldn’t, hence the error code, and as it’s 5v it’s getting and only there at key on I’m assuming it’s coming from the ecu. In a possibly related issue the bike also constantly displays the side stand warning light informing the side stand is down, even when it’s not. Again it’s a 3 pin connector (it’s the blue highlighted block on the right in the above diagram) and again there’s power to pin 1 (5v) and a ground at pin 3, but again pin 2 is also receiving 5v power from the ecu. It’s impossible to bridge any 2 of the 3 wires to trick the ecu the stand is raised, the red Side Stand warning light on the dash remains illuminated - but, and this perplexes me, the bike will start even with that red warning light on. It just runs poorly due to the MAP sensor issue. I’ve been round and round in circles this afternoon, checking continuity on the signal wires at both connectors back to the ecu, checking continuity on all the other wires, checking this, checking that etc etc. As all 3 sensors, the 2 MAP and the SS switch get their power from the ecu and ground back to the ecu and are all on the same circuit I can’t help but think the issues are related. Anyone got any suggestions please?
I know it's probably not a lot of help, but I had a problem on a multistrada where the diagnostics said the front height sensor had a problem, but it was actually back feeding from the rear suspension preload motor failure. I would possibly try and clear the problem with the side stand switch first.
Just an aside, I had another multistrada with a map failure which ran fairly happily albeit with an engine light. I see on the other forum you are having high exhaust temperatures, I didn't get that in this case
Thanks for the reply. I'll put up a separate post about about the MAP sensor (P0106) issue, once I've got my head around it for even though it's now fixed I've still not got my head around what was going on. It could be me misinterpreting the test instructions, a misprint in the test instructions, or there being no way to see whats actually happening on the PCB in the ecu. Anyway, it won't be a short post so I've got to write it out when I get chance. Yes, there is a (over) heat issue in the silencers/cats which I suspect is due to unburnt fuel finding it's way into the cats but I'm going to run some further tests on it today. For anyone interested here's the post. "The problems of the poorly Pani perpetuate (you can’t best a bit of alliteration now and again ). To provide the full story, the bike hasn’t been used for a few years, not since it blew up a silencer and caught fire . The owner bought a 2nd, but genuine, silencer unit and replaced the faulty one. When he next ran the bike it was a pig to start and wouldn’t idle (back to the MAP issue) but he nursed it through to check the exhaust system was sound. However, he turned it off sharpish when he noticed the ‘new’ silencers were again getting roasting hot. Once bitten, twice shy, he didn’t want to risk another explosion and fire. The bike was parked up on display in his office and no longer used. Roll on this year and he now wants to put it back on the road or sell it. It comes to me for an oil & brake service, multi-point check and to get it running as it should. The side stand issue I’ve traced to a faulty side stand switch, so that will have to be replaced. I also found out it’s not as simple to bypass the side stand switch on these as they don’t operate on an on/off switch basis but have a magnetic sensor so any bridging of the wires has to include some resistance which mimics the hall sensor in the unit. The MAP sensor open circuit/short circuit issue had me tearing my hair out but is now fixed. More on that shortly. Once the MAP sensor issue was sorted, old fuel drained and new fuel added, the bike started and ran but only on the horizontal cylinder. The rear cylinder not firing was traced to the HT lead not having been fully pushed home on the coil - not me I hasten to add. Anyway once sorted it started and idled smoothly on both cylinders. I left it to warm up so I could drain the oil easier. It got up to about 65c when I noticed there was an awful lot of smoke coming off the silencers. Engine off pronto and the bike was let cool down. However, I have to admit I grabbed the fire extinguisher and made sure it was to hand there was that strong a smell of burning . I seriously thought the silencer was going to burst into flames it was that hot. After 5 mins the down pipes and manifolds had cooled down enough they could be touched but the silencers were still too hot to touch, it would have resulted in an instant burn had I done so. It took them a good 20-30 mins before they’d cooled enough to touch. So, knowledgable people, what’s the consensus of opinion as to what may have caused the excessive heat build up in the silencers? I have some theories but I thought I’d ask what the Hive mind might think. "
