1. no leaks, think I fixed them all
2. as far as the glow plug light, I bring that up because the last time I had that light on I replaced the relay and the plugs but the light did not go off until some new wires were spliced into on of the harnesses. before that the car would stall for no reason.
3. all the fuel lines, shut off valve, crush washers have been replaced within the las 12 months
4. he says it is the IP because he thinks at least 1 cylinder it getting too much fuel and it cannot combust, thus exiting the tailpipe as smoke.

the car was running fine before I replaced the return lines, then injectors.

tanks for the offer on sending the IP to you. do you have Pacific Fuel Injection's website or number, maybe I'll give them a call

Thanks for your help,
Nick