well after trying 4 different brands I think I finally cracked the security using this module
http://www.ebay.com.au/itm/LEXUS-UN...cessories&fits=Make:Lexus&hash=item53f765c462
abit of fiddling and removed all the key stuff and we put rpm into the ecu and got injector pulse
now to leave battery off for afew days and see if it still keeps the programming
but so far it works when we leave battery off for 5 minutes so should be fine from now on
now to order afew more units
http://www.ebay.com.au/itm/LEXUS-UN...cessories&fits=Make:Lexus&hash=item53f765c462
abit of fiddling and removed all the key stuff and we put rpm into the ecu and got injector pulse
now to leave battery off for afew days and see if it still keeps the programming
but so far it works when we leave battery off for 5 minutes so should be fine from now on
now to order afew more units