1990 TURBO SUPRA wants to die after 4500rpms.. HELP PLEASEEE!!!!

1985 supra MK2 · 07-03-2008, 01:53 AM

to racinrookie88

Well sounds to me like you should take it in put it on a computer to get a code read out and then have a compression test done. Cause if it is the aluminum block when the motor heats up you will lose compression and then your boost will slip right past the pistons, if that fails you might ant to check out the waste gate and the blow off valve to see if there is any blockage or if they are functioning the way they should be. I had the same problem with the 89 i had and it turned out to be bad piston rings and my blow off valve was shot.

good luck with the car.

07-03-2008, 01:53 AM	#5
1985 supra MK2 Stock Join Date: Jul 2008 Location: Illinois Posts: 10	boging out supra to racinrookie88 Well sounds to me like you should take it in put it on a computer to get a code read out and then have a compression test done. Cause if it is the aluminum block when the motor heats up you will lose compression and then your boost will slip right past the pistons, if that fails you might ant to check out the waste gate and the blow off valve to see if there is any blockage or if they are functioning the way they should be. I had the same problem with the 89 i had and it turned out to be bad piston rings and my blow off valve was shot. good luck with the car.