Ok, I'm in the process of doing a turbo install on my 00' LS. I bought a chipped/mapped OBD1 ECU from phearable.net and installed RC 440cc Injectors with OBD1 clips at the same time. Now when I rev past 6K, the tach drops to 0, engine revs like normal to redline and hits the limiter, and the tach will jump back up to 6k and rev down with the engine like normal from there....I'm not sure how this happens, but I have a suspicion(sp?) it is something to do with the new ECU. Can my tuner fix this? It's not hurting anything, it just looks weird to be at redline and have the tach read 0, lol.

Any thoughts?