Has everything to do with what month the car was made! I just pulled an engine and trans from a 97 to put in my 97 gtp coupe and the engine i pulled had the 98 and newer supercharged and i fixed some of the vac lines for everything to work. My DIC in my coupe now is also blinkin 0 but its intermintent I can see the dic boost guage working but the performance shift doesnt light up either. My guess for my own car is i have a few electrical issuses to sort out and as for the 97's yeah what others said GTP was and option. I belive mid year they went to the 98 style setup. When I go back to Oslo and get a chance to look at the car I got the engine from Ill double check the tag on the door to see what the month and year it is and compare it with the tag on the door of my GTP coupe. Im sure both are 97 but Im willing to bet they are like 8 months apart or something.
i never get the boost gauge or performance shift light. i have tried 2 model numbers.629E and 629F last 4 digits
2012 Competition Orange Boss 302 #1769 438rwhp 391rwtq intake - off road h pipe - e85 - tune