My Engine Light Flickers On And Off
 

i am new to this site and relativly new to supras i bought a 1990 single turbo 7MGTE supra all stock when i boughtit! it was running perfect but once i boosted it to 12 psi got the turbo hiflowed and got the auto done (fully manualised trimatic auto with a 3,000 stall converter) i find that under load like shifting from 1st to 2nd the car sort of cuts out ond the engine light just flickers on for a seccond then goes off again!!!! i was told it was the speed sensor and got it changed but i still have the problem, i was also told i had a boost cut off at 10 psi took the boost down but still it happens!!!! so it is currently at the work shop getting a new fuel pump, computer, bosh 550 injectos, cooler and exsorst..... i hope to fix the problem would anyone be able to think of what it could be?????

any views or ideas would be much apreciated thankshttp://www.toyota-supra.info/forums/...ons/icon11.gif