Corsa c TPS

[gsr600]

OK you know the score ,Engine Management warning light showing .
i had the throttle pedal replaced in june £200+.
when i started it up today - started driving off when mega throttle kicks in, the only way to calm it down it by touching the brake pedal- a bit annoying to say the least,
now i found some codes 1120 & 1122 -
i had another used pedal on standby & fitted it (nowt else to do on Boxing day)
so it still revs high.
although found this elsewhere

**Many TPS sensors require an initial voltage adjustment when installed**

now gives code 1523 also

now what needs to be done - could i try something or otherwise wait for a garage to take a look. OUCH

thanks in advance

car details: 1.2 SXi+ petrol, manual, 06 plate,39k

[gsr600]

yes ok smarty - you knew i meant the pedal assembly Which cost £ as above.
now how do you reset the ECU without disconnecting the battery (as i dont have a radio code)