Injectors

[kengodfrey]

I have a 1991 ZR1, 19,000 miles. I recently replaced my injectors. I intended to buy RCI injectors, made the call and the salesman suggested I buy another brand; stainless steel, and looked same as originals. Maybe that was my mistake. I changed out the injectors, with the help of Haibecks video. Everything went as planned. When I first started the car, it misfired for a short time, but when I drove it out of the yard, it started running ok. Now, when I first start it up, after not driving it for a while, i get smoke and rough idling. When I take it out and run it, it seems to run ok. Sometimes it runs rough at idle speed, but ok when i speed up. the insides of exhaust are very black, and i get small amount of black liquids dripping out. Any suggestions?
Thanks, IKen

[LGAFF]

did you check the fuel pressure? Are these FIC injectors?

[scottfab]

The drips have got to be condensed water vapor.
Normal.
Do check fuel pressure as has been suggested.

[tomtom72]

Please don't think me a wise guy, but on a 90 there is that difficult to connect vacuum hose that attaches at the lower right side of the T/B, I'm not too sure where it is on a 91....you got that one on right? Also I'd do a mental replay of connecting all the other vacuum hoses, the MAP hose too.

Your symptoms sound like a vacuum leak to me, JMHO:o
:cheers:
Tom