I’ve been trying to narrow down poor running on my 79 280SE when cold. Previously, I had two issues I was trying to narrow down, high control pressure when cold, and after a while both system and control pressure dropping and fluctuating. I had replaced the fuel pump, which made no difference to the fluctuation issue. I had also sent off my warm up regulator to be cleaned.
When my warm up regulator returned, I refitted it to the car. Even without running the engine, the control pressure was much better. Actually it was now too low. I still had […]
