can i have an idiots guide on how to adjust the throttle position sensor on my 2wd sapphire cosworth please

 

 

can i ask why you wanna change it

and

keithG666


the screw drvier needed to change it while on the car needs to be VER small, i.e. not long like those

 

picky tosser!!!


its because he wants good pops on the overrun!!!

 

i want to check to see if its correct

 

keithG666




correct size, flat one only needed

cossiegreg1

it needs to be set ti something link 3%

but unless you got a secs or pectel monitor you aint gonna know it is set right,

 

well the problem is that my car ticks over at 3000 rpm unless the iscv is disconnected.i have tried another iscv in and it made no difference.so some one told me to adjust TPS and im asking how to do it.

 

Are you sure that the outer two TPS wires are the correct way round ? (A friend of mine fitted a PF09 and L8 to his car and changed the wires round, forgetting that I'd already changed them round, so his car would sometimes idle at about 3k)

 

cossiegreg1,

Hi,
for 2wd switch pfo1,
Resistance check for switch, ignition off, throttle closed pin +11, & -30, 400 to 600,ohm's
pin +30 pin -17,throttle @ idle position 00, slowly open throttle to fully open, observe multimeter, around 40 to 150,ohm's with the throttle just open, to full resistance, with wot, approx 300 to 600, ohms,
there are other ways of doing the above check using different pins of the
ecu plug, ALSO as the map sensor is on the same lines disconnect when checking.

Volts for T/Switch, pin +30,& pin - 11,ignition on throttle closed 4.5 to 5.5volts,
throttle fully open approx 0.5 to 0.6volts. as above checks can be done @ different pins adjust switch to suite,
these checks are from ford workshop manual.


Dave R.