Finally got rid of the spider headache, found the electronic injection system at a good deal replaced orings, fuel meter body gasket and the plenum and throttle body gasket as well,paid very close attention to all the details installing this stuff, I've owned this 2001 blazer for 6months, always had cold start up issues,well when I fired it up for the 1st time it started right up it ran so much better sounded better felt better,ran it about 10 minutes shut it off after cleaning up my mess I started it again it did start but it idles ruff,engine light started blinking now it stays on,and it's throwing a p0200 code anybody have any idea what happened here why did it go bad on me?? Would really appreciate sum help....davewho

 

P0200 is injector circuit malfunction. Is one of the electrical connection pins in your new spider bent, or is there a terminal in the injector wiring harness connector that is backed out or damaged?

I once had an intermittent p0200 in my 2001, but it was from wiring harness from PCM laying on a hot exhaust manifold piece (the tube to A.I.R. Check Valve on passenger side) after having the engine out. It took a while to find the cause of the problem as the harness looked normal on the topside. My fault for not routing it correctly.