hpdi---no idle
200 hpdi won;t idle. revs up good in neutral and if i jam it in gear and run it over 900 rpm it runs great. just won't idle, dies as soon as in bring it down under 900 rpm. changed the water seperator and the paper filter in the bowl. just went through the screens and injectors a couple months ago. thinking the tps or bad plugs, will try that in a couple days. any ideas?
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