I have done some mods to my Tri including putting smog block off plates on and plugging the hoses. also a Bazz computer. Now the idle speed will not return to 1500 for a couple of seconds (10-15). It stays a 2500 then after 15 sec drops down to 1500. Anybody else have a problem like this?
Are you in Beijing or the US? Do you really need to worry about smog in the US? I gues you're not watching the power cut, err I mean the Superbowl?
You see the squiggly thing at the end of a sentence, that's a question mark. I've never even heard of smog block off plates, why would you take your Ducati out in visibility that's so poor?
Ah, have never heard them referred to as SMOG plates. So you're using blockers for tuning on a dyno, with or without a Cat?
Engine mapping will not work correctly when the fuelling is in closed loop condition as the lambda sensors will detect that the exhaust gas temperature is too low and try to adjust things to suit . Once in open loop condition lambdas don't work any more so fuelling is ok again . That means tick over and lows revs will not be too cleaver , but I just thought it would run a rough at the bottom end . What other mods have you done ? What's a bazz computer ?
What reason did you have to remove the PAIR/SAS/SMOG system? ZAFM? Or popping on over run, ZAFM needs the smog system blocked as said or the sensor reads the air...
What you've replaced are the reed valve and housings of the fresh air injection. This is in place to clean up the exhaust gases after combustion. It allows the mixture in the cylinder to be run better ie richer but then be cleaned up to meet emissions regs. they need blocking when tuning as the gases are measured in the exhaust headers and the fresh air injection buggers the readings. Whats happening now is that the ECU is reading close loop measurements and trying to compensate by weakening the mixture....it can't get to the levels due to the fresh air system being closed down. refit the stock units and reconnect the pipes and it should sort itself. You may need a reset on the fuelling controls though.
Dont Bazzaz give you O2 eliminators? Looking at the instructions on the site they do give you eliminators but also say no base maps to get you going, dyno or self tune after installing.. Daft question but did you follow the Bazzaz instructions, setting TPS, loading a map ( however they don't seem to have any 1199 base maps ) dyno or self tune and so on...
Yes they did give me O2 eliminators which I installed. Yesterday I worked on the bike a little more and found that I only have this idle problem in first gear when the rear wheel is turning,I had it on a stand. When I pulled in the clutch and the wheel stopped the idle dropped to 1500-1400, when I engaged the clutch and wheel turned the idle picked up to 2000. It does not do this in second or third. Fourth and above it is too difficult for the engine at idle speeds. with the O2 eliminators plugged in the ECU does not know if the mixture is lean or rich. I did chance the mixture below 3K as per Baz recommadation. +8%
(my guess?) Not sure how the rear wheel turning and not the front plus gear position would effect the idle speed with Ducati Engine Braking? My guess is its all taken into account maybe I'm over complicating it, if you change the ECU mapping then the Bazz map would be out, the map they give you could only be used with what ever ECU map it was created on... just a thought...
I removed the O2 eliminators the come with the Bazzaz computer and re-installed the stock ones. I was able to put one O2 back in the right side hole and I put the other in the right side muffler(no Cats). I started the bike warmed it up to 125 deg F and put it in first let the clutch out the rear wheel started to turn the idle increased from 1500 to 1600 rpm That's not bad. I don't know what would happen if i let it warm up all the way.
I'm always a bit wary of the bazazz ECU thing, I ran one on a dyno and it was like a cheap version of a power commander with less functionality for mapping each cylinder individually. Was there a specific reason you chose a bazazz unit?
