Sonic
New member
- Location
- Australia,Melbourne
Just wondering whats the different between a red Weber PF09 & a black weber PF09 ???
Red TPS vs Black TPS ?
- Thread starter Sonic
- Start date
Sonic
New member
- Location
- Australia,Melbourne
Cyriel if you do have one that will be great....The reason i'm asking about a red TPS i have seen one on ebay, "Sierra Escort 4x4 RS Cosworth PF09 throttle sensor TPS" i do know these TPS's where also used in these cars,fiats,alfa romeo's & sierras...
I have tested my TPS with a multimeter & found a dead spot at 1/4 turn out from closed..
I have tested my TPS with a multimeter & found a dead spot at 1/4 turn out from closed..
Sonic
New member
- Location
- Australia,Melbourne
Any one knows whats the difference between a weber PF09/04 & weber PF09/05 TPS ???
jotacorsa
Hero member
- Location
- between Santa Fe and Taos
don't have a definitive answer
seems both have been fitted to similar auto engines
like fiat 2.0 16v normally aspirated
and there are some number changes with production periods
i know most TPS units are either simple switches or have a linear variable resistance
but i expect some applications may use non linear values for specific applications
so, googled info on the weber marelli unit suggests it is designed is a non linear tps for most applications
but one of the duc sites suggests either a 04 or 05 will work in the same application (ie on a duc)
then i found this http://www.bikeboy.org/mvtps.html perhaps it will help
i did find another ref saying the red is a PF01 and the black a PF09
but nut much to back that up
mapping out the values on the one you have may help find the correct replacement unit
good luck
seems both have been fitted to similar auto engines
like fiat 2.0 16v normally aspirated
and there are some number changes with production periods
i know most TPS units are either simple switches or have a linear variable resistance
but i expect some applications may use non linear values for specific applications
so, googled info on the weber marelli unit suggests it is designed is a non linear tps for most applications
but one of the duc sites suggests either a 04 or 05 will work in the same application (ie on a duc)
then i found this http://www.bikeboy.org/mvtps.html perhaps it will help
i did find another ref saying the red is a PF01 and the black a PF09
but nut much to back that up
mapping out the values on the one you have may help find the correct replacement unit
good luck
M
morison
Guest
If your looking for another source for a TPS try a Harley shop or Harley wrecker. A number of Hogleys use the same TPS as Guzzi etc.
Chris
Chris
Sonic
New member
- Location
- Australia,Melbourne
Thanks guys I'll try PF09/05 which i can through a friend of mine who works in a bike dismantle shop but he's away until next week.I don't think there will be much difference between PF09/04 & I'll soon find out, and if anyone else knows the difference please let me know.....
J
jlo
Guest
A bit too much of a Breganze obsession here, I had read "red or black tips" (float valves) at a first time...............
B
bob
Guest
Presumably an injector will only flow what the ECU allows it to flow so if you fit a larger capacity injector it won't make any difference unless you're looking at a remap. Or have I misunderstood how these things work?
jotacorsa
Hero member
- Location
- between Santa Fe and Taos
bob, that's pretty close
electric injectors are just solenoids that open and close a pintle valve
the ECU sends a square wave signal for activation and duration
a slightly larger injector (greater net valve area) won't cause any issues as the closed loop system
will modulate the duration time
if there is a gross difference in size i think the std ECU will have difficulty
correctly modulating the spray duration
too small and the req duration may overheat inj drivers and the injectors
(much the same way a speaker gets blown. where it normally operates with a sine wave
if it is clipped into something like a square wave the heat fries the coils and it doesn't work)
one too large could flow more than the programmed minimum specified duration time
an interesting aside is what was done to run a ZR1 vette on CNG
bosch indycar injectors were used as the CNG required a much larger flow area
because CNG is a vapor rather than a liquid
all around a very interesting project as the camshafts had one inlet lobe ground slightly off the other (4V head)
to induce swirl in the cylinder
cheers,
scott
electric injectors are just solenoids that open and close a pintle valve
the ECU sends a square wave signal for activation and duration
a slightly larger injector (greater net valve area) won't cause any issues as the closed loop system
will modulate the duration time
if there is a gross difference in size i think the std ECU will have difficulty
correctly modulating the spray duration
too small and the req duration may overheat inj drivers and the injectors
(much the same way a speaker gets blown. where it normally operates with a sine wave
if it is clipped into something like a square wave the heat fries the coils and it doesn't work)
one too large could flow more than the programmed minimum specified duration time
an interesting aside is what was done to run a ZR1 vette on CNG
bosch indycar injectors were used as the CNG required a much larger flow area
because CNG is a vapor rather than a liquid
all around a very interesting project as the camshafts had one inlet lobe ground slightly off the other (4V head)
to induce swirl in the cylinder
cheers,
scott
Sonic
New member
- Location
- Australia,Melbourne
Thanks Scott that does make sence.....BTW who would remap the ECU ?? Ducati guys ??? or any bike mechanic ??
Cyriel i have been away from the PC for a few days & haven't checked my emails (or they went in the spam folder)I'm still intrested if this other TPS is no good.....
Cyriel i have been away from the PC for a few days & haven't checked my emails (or they went in the spam folder)I'm still intrested if this other TPS is no good.....