Injection Pump Tuning - General - VWDiesel.net The IDI, TDI, and mTDI source.

• Injection Pump Tuning by Justin on 22 Mar, 2007 08:17
• I have just gotten my TDI running and I am having some tuning issues, hear is the current setup
  
  1.9 TDI minus the turbo right now since its in the rebuild stage so I am running it naturally aspirated until I can get the money to rebuild the turbo
  1.6 L IDI NA injection pump with TDI camplate and plunger head
  
  I think that my fuel return line is cloged or partially cloged
  
  and the tuning problem is that after running a little while the engine goes into run away because of to much fuel and I cannot find a happy medium for tuning its either to much fuel or not enough
  
  any suggestions?
  
  Thanks
  Justin
• #1 by Justin on 27 Mar, 2007 07:24
• come on no one has any advice?
  
  well I pulled the govenor mod out so that the run away problem is taken care of, now I need to get the thing to idle, it runs great in the upper rpm's but when I try to get it to idle below about 1300 it just stalls out, or goes into a horrible 5-600 rpm idle
  
  any suggestions on adjustments to the pump.
  
  later
  Justin
• #2 by Powjetta on 27 Mar, 2007 08:14
• You are doing something that not many of have exerience in, but you might try the IDI forum same question.