My 95 S10 V6 pickup was running great. On day it lost power and MPG dropped off. I searched online and found the most likely cause was a bad nut kit or spider injector. I am a decent shade-tree mechanic with years of experi ence. I pulled the intake and indeed my nut kit was bad. I figured while I had it off I would replace the injector. I bought a GB re manufactured un it. I put it all back together and it started perfectly and idled better t han ever. It revs smooth and perfect to redline in PARK OR NEUTRAL. As soo n as you put it in Drive or Reverse with your foot on the brake sitting sti ll it will only barely make 2000 RPM and has no power. Shift back to P or N and it is perfect. It will idle and rev up to redline all day with no issu es. I nursed it to an auto parts store (30 mile round trip) and had it scan ned and it had no related codes. Mileage was terrible. I pulled the intake again, no leaks, good fuel pressure, changed fuel pump and filter. Buttone d it back up and still the same thing.
Could I have something as simple as I broke something external, a bad conne ctor or incorrectly connected vacuum line? I am totally stumped and have p osted in several chevy forums with lots of reads and no responses.
ANY IDEAS OR SUGGESTIONS APPRECIATED.
Thank you