VWDiesel.net The IDI, TDI, and mTDI source.

General Information => General => Topic started by: Justin on March 22, 2007, 08:17:20 am

Title: Injection Pump Tuning
Post by: Justin on March 22, 2007, 08:17:20 am

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

Title: Injection Pump Tuning
Post by: Justin on March 27, 2007, 07:24:35 am

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

Title: Injection Pump Tuning
Post by: Powjetta on March 27, 2007, 08:14:40 am

You are doing something that not many of have exerience in, but you might try the IDI forum same question.