how to set up the TPS

[Simon T]

tracker11 said:

just a short checklist

-spark is ok (just double checked this)
-20 Liter of new fuel (I pumped out all the old fuel before)
-battery is ok and fully loaded
-plug leads were removed but they are in the correct Position (they were marked)
-I smell and see the fuel in the plug holes (also tested each fuel injector)
-fuel pump is working (but I on't know the fuel prssur, but I would say it's ok)

I now opend the Butterfly till you can see a gap and set the TPS to 0,3 V and tried to start the engine. And it start to fire up a second. So I'm a Little bit happy now that it is just a adjustment Problem. I will try some more adjustment to get it started. Maybe I get it running

What would you recommend.
-same TPS Setting (0,3 V for example) and just try to adjust the Butterfly?
-or playing around with both
-or wait till I get the ECU Interface to read out the correct TPS Setting (hopefully ;-) )


by the way is this start up way correct?
1. main power Switch on
2. ignition on
3. crank engine with ignition on

Edited by tracker11 on Tuesday 22 July 17:30

yeh that's right. Try with the throttles opened a bit wider on the stop adjuster and set the TPS
Voltage to the correct value
If this doesn't work open the throttle a bit wider on the stop and Re adjust the tps
Voltage

not sure why you need the I/F cable. If you can see the tPs voltage you will see the same voltage with the interface

S

[tracker11]

I don't know the tps value yet and just ordered the ecu interface. So it will take a few days till I know the correct tps value

[Simon T]

I thought you had a DVM in the video connected to the TPS?

[tracker11]

ah sorry with I/F cable you mean the interface?
My problem is that I don't know the correct TPS setting and I hope I can get the correct TPS voltage by reading out the map. I don't think I have the standard Radical map anymore because I have a sticker on the ECU "Andy Bruce tuned 1300"

Or did I understand something wrong and it's not possible to find the correct TPS setting from the map?

[Simon T]

The engine is pretty simple, it's just the combination of spark, fuel and air. You have all the ingredients...

The map expects a certain voltage for a given throttle position. You need to set a voltage, probably around 0.2 / 0.3 v then open the throttles a bit try it and repeat. At some point you should get the combination of voltage and butterfly opening angle close enough for the engine to run.

You know you have fuel and a spark so try giving it more air a bit at a time till it fires,

Ps did you check the TPS voltage increases as you open the throttle?

[dptdpt]

And mine refused to start last weekend before a track day on Monday. Spent a couple of hours checking and finding nothing wrong, then looked at the troubleshooting guide and read it needed 11.5 litres of fuel otherwise it would not start. Added some fuel and hey presto, it fired up as normal.
Does this mean that the engine will stop if the fuel falls below this?

[splitpin]

dptdpt said:

Does this mean that the engine will stop if the fuel falls below this?

No it won't ....................... see my post on P1 (not that this has anything to do with a TPS )

[ric355]

tracker11 said:

ah sorry with I/F cable you mean the interface?
My problem is that I don't know the correct TPS setting and I hope I can get the correct TPS voltage by reading out the map. I don't think I have the standard Radical map anymore because I have a sticker on the ECU "Andy Bruce tuned 1300"

Or did I understand something wrong and it's not possible to find the correct TPS setting from the map?

Yes, with the ECU interface you will be able to read off the throttle load site. This is derived from the throttle pot voltage. You will also be able to look at the raw voltage, but the site is the more relevant figure. By moving the throttle pot until the throttle load site reads zero you'll be able to determine the correct voltage for the idle. Then it's a case of ensuring the butterflies are open enough to allow it to start assuming spark and fuel are working properly. All of this can be done regardless of whether the map is locked or not.

I agree with Simon that you should be able to get it to fire up without the interface, but it is perhaps easier with it if you are not sure which parameter to vary at any point in time. And you'll get a more accurate result.

It's important that you identify load site zero for idle so that the indexing into the map is correct for both fuel and ignition. I was in this place a week or so ago with my car; the throttle pot was set at 0.4v at idle and it ran rich because this was load site 3 on my map.

[ric355]

Incidentally I have found the hayabusa to be relatively easy to start provided the throttles are slightly open and there is spark and fuel. It might run lumpy if the map isn't being indexed correctly but it generally runs to some extent. So don't be surprised if it turns out you have an entirely different problem.

[tracker11]

engine is running

even if I had a good spark it Looks like the spark plug was wrong. Spark plug type CR9E1A was installed and I just found a different type of spark plug in my spare part package from pre owner. So I now installed the spark plug type CR9EB and the engine fired up and runs fine ...yeees

Thanks for all your Support and help. Just have to set up the correct TPS and airflow and then the car is ready for my fist trackday in the SR3

[Simon T]

http://www.ngksparkplugs.com/techinfo/spark_plugs/...

More likely they were just faulty than the wrong type

S

[SportsLibre]

Far more likely all that churning had just soaked them so putting in fresh albeit old ones allowed the spark.