dburger1406

My 81 euro S has an issue with starting. It will turn over once and fire but after that nothing. Troubleshooting shows low fuel volume as the potential cause. Steps taken so far on attempting to remedy the issue.

New intake strainer
new fuel pump
new fuel filter
open gas cap to remove any vacuum in the fuel tank
bypass fuel pump relay with a secondary relay directly fed from battery
verify system and control pressures are correct at the WUR.

What am I missing that could still be restricting volume but not affecting pressure?

Thanks
Doug (an old rennlist email patron moving to the forum)

AirtekHVAC

Might not have anything to do with it....mine has 2 fuel pumps. (1) new failed, causing a restriction of sorts....took me a bit to find it.... Perhaps you have the same issue?

Or problem in fuel distributor? There are tiny filters in the hard lines connected to the fuel distributor, and a filter in the main line going into the FD. Could be those....

dburger1406

Single Fuel Pump. I did not realize that there were additional inline filters in the system. I will see if perchance those maybe the issue.

AirtekHVAC

If memory serves correct, they are in the bolts that hold down each fuel line at the distributor. I took mine out. Pictures are in my thread....

https://rennlist.com/forums/928-foru...ue-thread.html

Dennis Wilson

Check your resistors for the 15 and 16 circuit that powers the coil. Cranking goes through one resistor which appears to be OK, but when the key is moved back to run, the 15 circuit goes through both resistors to lower the voltage. If the resistor is burnt out or has bad (loose or corroded) connections it could cause the problem you are seeing.

Dennis