Thanks a bunch as 'light bulbs' are coming on in my mind.
1. I'm measuring the temp of the VO at the output (brass) on the top of the heated fuel filter, but I suspect it's not accurate. Drove ten miles home last night and VO temp never registered above 85F (strange as it was 120 earlier in the day). Also, temp falls as I drive and rises as I'm stationary
2. Right now my 'T' on return coolant is 3" below monovalve. If I move it close to Aux pump and wire that pump to 'on' with key switch, will that solve the pressure issue that the monovalve has with the AC function (see previous poster's concern)
3. What type of temp device do you use between lift pump and IP?
4. I'm going to insert a FPHE at the earliest exit point of hot coolant from the engine (first in line for coolant, last in line for injected VO right?)
thanks again for all the help
'84 300DT 298k (Aubrey's)
'99.5 Jetta TDI IV 251k (Julie's)
'97 Jetta TDI 127k (Amber's)
'97 Jetta TDI 186k (Matt's)
'96 Passat TDI 237k (Don's
'84 300D 211k Mint (Arne- Undergoing Greasecar Conversion)
'82 240D 229k (Matt's - Converted-300DT w/ 4 speed