Converted my 86 gt to MAF. After i did this it will not idle,and there is no throttle response. If i pump the throttle after i stop there is like a 1/2 second delay or so and then the rpms jumps up then dies instantly. I put in a A9L with a chip from a well known tuner. Been over the wiring for the conversion 3 times now. I have a brand new walbro fuel pump brand new lines brand new fuel filter brand new tank brand new kirban fpr brand new kirban fpr gauge. When i cycle the key on i barely see any fuel pressure and it drops back to nothing almost instantly. When i get the car started i try to adjust the fuel pressure and seems like nothing change pressure wise on the gauge. Ive been told possibly a bad ECM? Car ran perfect as SD. If anyone can help with some trouble shooting that would be great. Is there a way to test all circuits are working on the ECM?