secondaries not opening at full throttle

[SDZR-1]

So I just finished my starter and injector install and took it for a test drive...it definately ran better than w/ the old injectors, and hey, it even started...haha. So I solved the problems that I had, but now when I press the accellerator completely to the floor the secondaries will not open....if I let back a bit then they do. Also, 90% of the time it idles beautifully but once in awhile it starts to run a bit rough. I was thinking it had something to the throttle position sensor or maybe just the plug that goes into it since it just doesnt feel like it fits as snug as it should. SES light came on periodically for about five to ten seconds each time, so I will try to get it scanned tomorrow to see what codes I am getting. Any insight would be wonderful....thank you all for the help I have recieved so far, I doubt I would have even attempted the starter/injectors w/out all the helpful info and advice found here.

Jarvis