No high rpm?

gomezmk · 12-26-2006, 02:01 AM

I have a problem with my 87 supra that was a na body with a jdm 7mgte installed. For some reason the motor just does not like to rev pass 5,000 rpm, it's just not pulling anymore. I suspect either a bad ecu, or a ignitor. It does it under load and also in neutral(its a 5 speed). I did basically bought everything on ebay to convert it to turbo. The coils ohmed out ok. The afm is ok because I hit fuel cut once and the fuel cut works off the afm. I know for sure I don't have a boost leak. I installed a FCD, I currently running 11 psi.

12-26-2006, 02:01 AM	#1
gomezmk 3" Exhaust Join Date: Jul 2006 Location: Santa Rosa, CA Posts: 70	No high rpm? I have a problem with my 87 supra that was a na body with a jdm 7mgte installed. For some reason the motor just does not like to rev pass 5,000 rpm, it's just not pulling anymore. I suspect either a bad ecu, or a ignitor. It does it under load and also in neutral(its a 5 speed). I did basically bought everything on ebay to convert it to turbo. The coils ohmed out ok. The afm is ok because I hit fuel cut once and the fuel cut works off the afm. I know for sure I don't have a boost leak. I installed a FCD, I currently running 11 psi.