just finished the tippy conversion and installed the new ecu.... it works fine, engine runs and trans shifts fine... UNTIL i shift into 4th using tippy and then i get the engine check light. The check light only comes on using tippy...
Any suggestions????

ok just got the fault code but cant figure out why im getting it....

fault code 42 or 43
both mean similar things that 2nd or 3rd gear ratio is incorrect.
Is there a difference between 2nd and 3rd gear between tippy and non tippy???????

any help would be greatly appreciated