[NashMan]

well i know supra's are bad for code 51 is mostly ac switch i get that crapp all the time it no biging at all and if it is nock sensore the computer will just drop your timing low . it safty over ride

if you car has the same speed as it all wasy had then it is most likly a/c switch



as for 14 hummm


as for coils they don't go much but get your favpoit muty meater and test em but make sure the coil packs are grounded good or you will get bad voltage

and does the engine light come on at all when you just turn the key if it don't then it is bad ecu conntion and to fix this prob you can clean your fuse box whith contack cleaner

and if that does not fix then give the box wiggle and see if you can get that light t come on and if it still doe snot then 2 things are left wireing or ecu

if you give em more info i can help more






any way now that that is over i don't have my car any more the bad men took it away

ecu don't really mess up on supra very on comon