I have to admit I am new to the forum with regard to asking questions. I have used information off the forum multiple times for quite a while. At the moment I am flummoxed with this car. I replaced my 84 300DT with this unit about 7 months ago having purchased it from the original owner with all repair records....Texas car in fact.

So after driving it back to Michigan I decided to do some routine maintenance that had not been done in about 100K. The injectors and glow plugs were replaced as well as the ERG valve which was hanging up. The glow plug relay and circuit are working fine and all the other EDS systems were tested and work fine. But it still smokes and would idle with a miss until about the 50 C temperature line. From there is runs like a champ. I just finished a 1500 mile trip with an average of just at 30 mpg. Before the trip, since I hate that darn smoke, I ran a bottle of diesel purge through the system and installed new filters. The clear bottle I used showed the recycling diesel purge as being nice and clean.

Welp, the smoking and missing are worse.....but it still runs very smooth when warm. The missing has gone from say once per 12 firings to once in 5 to 7 firings. I would have to say the "diesel rattle" at idle is worse sounding as well. The only thing that makes sense at this time is that the IP needs to be replaced. It has 187K on it...as does the car. But that is a lot of money and work if that is not the problem. So I turn to the group of experts for assistance. I hope someone has the answer or has experienced the same problem with some ideas of solutions.