Troubles and havent even had first ride

i thought i had posted back earlier but i hadnt, on the tune page the thottle readings while ignition was on but not started it read as follows


throttle

15.3 --------- 0.68v
0% --------- 0.71v

i dont know if these are right but it doesnt seem like it is this normal ?
 
Morning Karl,
I have never looked at the data stream on my tune ecu but those numbers sound kind of suspicious. I would imagine that the TPS on the rocket would operate like the TPS on any of the cars that I work on daily. I would think that you should see 0% when the throttle was closed and monitoring it as you slowly open the throttle the % should go smoothly up until it reaches nearly 100%. Then the opposite response as you close the throttle.

If nobody chimes in that knows that is correct I will try to get time to plug mine in tonight and see what I get.
 
Hi BillB hello i am not sure if the throttle will register while the bike is not idling not sure so i didnt try the throttle while the tune was connected. i am going to put the pc on it again in the morning as its nearly 1130pm here. i had read somewhere (not sure because i read so much over the last week) that the voltage should be close to .60 v and .64v max but i am not sure if i am reading it wrong at this point. i have ordered a brand new tps anyway which arrives tomorrow as it still has the old one on it and it can't hurt getting a later one (my thoughts anyway) i have been carefull not turn the throttle anymore due to previous advise. as i am looking at each part i am studying what they do and how they are related. i know now how all these parts work together and could be relevant to the problem and as we have gone through each part where getting closer to the main problem. I wont know more about it until i connect to the bike again.
 
karl rashleigh said:
15.3 --------- 0.68v
0% --------- 0.71v
Click to expand...


Those numbers are pretty close to what you would expect - you cannot get a representation of the actual closed position, because the stepper is opening the throttle slightly, just by turning on the ignition - so you need to use the 'adjust iscv' tool in the tests page in order to have the stepper close the throttle, then read the actual closed position voltage and adjust as necessary; but the numbers indicated by Karl are pretty much in line with what you would expect with the stepper in play.(in fact if you look at the image illustrated in the tutorial on T'Rat (link below) then you will see Karl's numbers are almost identical to the example.)



BillB - your supposition about how it works ls is correct, however there is nothing contradictory in the information that Karl provided that suggests it is 'suspicious' or incorrect - those data are simply the numbers from when the throttle is 'closed' (but not quite closed because of the stepper)
I did suggest earlier in thread (see post #32) how to check the throttle position sensor for smooth feedback across its range using both the dial in the diagnostics screen and also using the TPS axis on an F map in the MAPEdit screen
As reminder, the indicator dial in the Diagnostics page is not a representation of actual throttle % opening, it is a % of the available 5V - so at WOT it will NOT read 100% on the Dial.
But if you go to the Mapedit screen and go to an F table tab, you will see a highlight on the TPS axis where the throttle position is actual % of open - as you open the throttle, you will see the highlight on the axis track all the way to 100% at WOT.

cardinal93 said:
Here's a good run down on the tps and stepper motors.
Click to expand...
I had posted this link earlier in the thread (post #30) - excellent procedure by my friend champ87 and although written for another model this is essentially the same for the Rocket.
 
Last edited:
 


unlike the cars that are set (tps) to say .5 or so the rocket is set with the stepper motor retracted at (.6) .58 to.62
when you turn on the ign. the stepper motor retracts to measure the voltage (.58 to .62 and will set a code if off very far) then extends a little (idle position) to approximately .72 +/-0.05 volts.
this is very visible while looking at the stepper motor while turning on ign.
 
You can use the utility in TuneECU Tests Screen (adjust ISCV) to have the stepper retract to fully close the throttles.
 
well its been a journey, i can now change fuel pumps, fuel filters regulators, check fuel rails, checked cables and hoses and check the stepper motor (visual check) now its about getting into the tuneecu part as described. i have a fully charged battery and hopefully the tps arrives today, i feel that it has come down to this tune now. i got about 7 days left before it is time for my booking with the mechanics and i am hoping that i can fix it before then as i have learnt to trouble shoot the various parts and it would be a great reward for getting in and having a go. plus if the mechanics had fixed it first time i wouldnt have leanrt the things i have learnt. the only other part (apart from the tps and the stepper motor) i havent checked yet was from a seperate post i was viewing where they talked about the crank sensor being stuck or dirty. before i became a member of this site. i knew nothing about the bike but now i am confident in looking at the bits i have already done and also having a try at stuff i know nothing about. i have had sooo many people give suggestions and all of them i have looked into to gain knowledge. the tune stuff i have been slow with as i am cautious not to do anything that isnt mentioned so i dont stuff everything up. this is a great site and hopefully when this is all over i will join the triumph club in adelaide as well as ride with a few of my friends.
 
maybe i missed something did you take the injectors off the fuel rail and clean out the rail then get the injectors cleaned? or did you just put it back?
 
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