tps reset w/o ecm spy

[jimijeans]

Every 2 fill ups is a way to keep a smooth Idling Engine. If you don't agree then too bad dude. You don't have to even do the procedure just wait till it won't start or run correctly then reset TPS. The Key Turn method on any 2008 through 2010 is easy and fast. 08+ Buells w/ DDFI-3 works differently than any prior, Throttle Body assembly. Delphi is not an ECM it is about the Electrical areas of the bike wiring such as Delphi/Connectors & Deutsch connectors.Packard terminals and so on.DDFI-1-2-3 [Digital Delphi Fuel Injection]= Ecm that is a PreProgramed Microprocessor with pre loaded Fuel Maps and Epromm. You just don't get it . Idle is everything on any fuel injected Engine,or Carb/ like I said on 08+ Buells TPS will reset automaticly upon Using a Key Turn Method only for 08+ through 2010 Buells. .33volts at idle closed. with starting it is 5/volts controled by the Ecm, then varies depending on throttle position, maxing out at wide open throttle to 3.86 volts . The Ecm also controls the IAC or Idle Air Control motor on the throttle plate assembly.Pintle resets in less than maybe 2 seconds every time the power is switched to on. Dude get a life.*Jimi

[jimijeans]

Ich, post all your data right or wrong all you want . be correct with your words there are sponsers and advertising so the f/words and such are inmature and show lack of respect for this Forum, it is about opinions and some humor along with some advice but you an [several] others could at least act like adults. This is after all a Forum and the lack of nasty words [won't] be missed. I can't believe in this day and time that people get all hyped up over things such as a Talking of differences. Typing away and feel like they own this Forum! Bad Language is something that needs attention here so go on and be whatever but Be Respectiful of what the people here at Buell XB have done for many . There are other Forums out there and they Do Not put up with it. If you don't agree then look away or ignore and put your own values in, at least Respect the Members that put up the Money for this Forum to Operate. *Jimi

[anrkizm95]

Seriously? Every two fill ups? First I've heard of this. Wow!

when i was running the stock and then the ebr ecm i noticed after riding in town for about a week performance would drop doing. the tps reset would make a noticeable difference.imo this procedure resets more than just tps.

bull****. idle control does not relay on tp (throttle is fully closed anyway), but on iac position. tp is not involved at all therefore ****ing with tps zero is just rubbish.

and, btw, buell is not using delphi ecm. they never did. just in case you didn't notice yet.

the top half of this is rubbish as for the bottom half delphi is not just a brand name.idle is controlled by info from multiple sensors tps,iac,iat and hts.the iac is just the only way the ecm has to control it.depending on the tps position readings and temp the ecm controls iac pintle position to machanically control idle.

[ich]

idle speed is controlled only by iac position, as tp is "fully closed" at idle. the idle setpoint map defines the, well, set point, as a function of battery voltage and engine temperature.

tp is related to iac position, not the other way around, as you said. tp is used only to meter the right amount of fuel, not to control idle speed.

[anrkizm95]

ecm controls idle speed based on info from other sensors iac is just the mechanical means by wich the ecm controls it.

An IAC (idle air control) motor is designed to adjust the engine idle RPM speed by opening and closing an air bypass passage inside the throttle body. The cars computer or PCM (powertrain control module) receives information from various sensors and will output signals to adjust the idle air control motor in or out to adjust engine idle speed by controlling engine idle air. http://www.2carpros.com/articles/how...ol-valve-works

One of these is the Throttle Position Sensor (TPS),
which tracks the opening and closing of the
engine’s throttle.
The throttle plate is a valve inside the carburetor or
fuel injection throttle body that allows air and fuel (or
air only in the case of multiport fuel injection) to be
pulled into the engine by intake vacuum when the gas
pedal is depressed. The throttle opening determines
the engine’s power output, so monitoring the position
of the throttle gives the computer information it needs
to determine engine load. This information along
with input from other sensors such as the manifold
absolute pressure (MAP) sensors and temperature
sensors, then is used to calculate the engine’s fuel
requirements, spark timing and other functions.
How It Works
The TPS is a three-wire, variable resistor
(potentiometer) that changes resistance as the
throttle opens. The TPS is provided with a voltage
reference signal from the computer (VRef), usually
5 volts. As the position of the throttle changes, the
corresponding change in the TPS’s internal
resistance alters the voltage signal that returns
to the computer via signal wire. The third
wire provides a ground connection. So what
the computer sees is a variable voltage signal
that changes in direct proportion to the
throttle position.
Most TPS sensors provide just under one volt at
idle with the throttle closed, and up to five volts
at wide-open throttle.
The TPS is attached to the throttle shaft and may be
located on the outside of the fuel injection throttle
body or carburetor, or on some applications, inside
the carburetor itself. On some applications, there may
also be a separate “nose� switch to detect when the
throttle is at idle, and/or a wide-open throttle switch.
Drivability Symptoms
A faulty TPS can cause driveability problems such as
hesitation, stalling, an erratic idle, pinging (spark
knock), no torque converter lockup, hard starting, an
intermittent check engine light while driving, poor
fuel economy, and generally poor engine performance.http://www.wellsve.com/sft503/Counterpoint2_1.pdf

[cincybolt12]

Nice rant on cussing, last i checked this is a forum of opinions and combined knowledge. Who cares if he cusses, we are all adults and if you really get that butt hurt over it sign a petition. Better yet don't ride or be around bikers. And while you're at it i really wouldn't go to bike week or any biker rally for that matter. If you want wholesome go to soccer practice mom. Or join the FRG, I hear they need good women to support the troops. Most of us are vets or active, i bet you support those dicks in ny who spit in our face when we got home. EOR, FOLLOW ME

[ich]

ecm controls idle speed based on info from other sensors iac is just the mechanical means by wich the ecm controls it.

iac is the actuator and controls the engine's state, the reference value is engine speed as defined in the idle setpoint map. engine speed is also the result and the feedback input.

idle setpoint is a function of battery voltage and engine temperature.

this is a classical closed loop system.

throttle is fully closed at idle. throttle position is not used to control engine speed during idle (impossible as the butterfly is not connected to an actuator, just to a sensor). throttle position is a virtual value and is adjusted automatically (taken from the idle air control throttle position adjustment table) to reflect changing iac positions and the change of air flow caused by this.

throttle position and engine speed are used to look up an uncorrected injector pulsewidth in the fuel map, until idle closed loop takes over, triggered by the O2 sensor signal, which in sequence makes the tps and cps signals superfluous for pulsewidth calculations.

injector pulsewidth is not used to control engine speed.

this is the way buell handles it. this is what you have to cope with, not one of the many other ways. if you do not understand that, you will be lost with any problem regarding idle speed control.

[kab]

Wow, vast amount of knowledge here......

[core attitude]

Does anyone know if it is possible to do this same type of reset (without ECMSpy) on a 99 X1?
TIA

[anrkizm95]

no its not