I only have a simple single dial gauge, can't afford the $300 for a kit so I have to make and do a bit but I know there is plenty of pressure, at least 7 bar, at the inlet pipe, the one from the tank that screws into the distributor, same pressure on the pipe out of the distributor to the FPR, flow rate checked on first pipe and exit from FPR. When I say all the EHAs’ buzz, I mean if I apply a small voltage to them, proves they are not stuck, anyway what are the chances of all three being duff, especially if two of them came from running engines as did the test 020 distributor and the current 002 distributor.
Like I said, the engine ran well until I switched it off, it still starts first time, every time but will not run as there is no fuel at all in the injector lines. What is it within the distributor that stops fuel from getting from the lower chamber to the injectors? Could it be that although I have plenty of pressure coming in from the pumps it’s not enough to open internal valves or something? Bearing in mind thanks to a so called Bosch specialist in Malaga it was running on one pump for a year (albeit poorly) until I replaced the second one so even without testing I can’t see there being a problem in the pump area, unless both have decided to go low at the same time.
Mercedes W210 2.3-16v Cosworth Born 09 April 1987
Engine 102 983 10 01621
Trans,717404 10 016217
No Lambda, no 02 sensor, No Cat. (EZE)
Distributor; 0438 101 002
Air meter; 438 121 044 –LM0007
Fuel pressure regulator; 0438 161 006
Fuel relay; 033 545 24 05
Voltage overload relay; Mercedes number 2618403745m Siemens’ number 5WKT 762-10A 123v (with 2 x 10Amp fuses)
All EHA s are common as we know.
Bosch fuel pumps, two of, both running
Throttle stop micro switch OK
spare parts on hand;
0348 101 010
0438 101 020
Air flap units
0348 121 001 LM 0001
0438 121 022 LM 0003
Fuel Pressure regulator
0468 161 001
Fuel pump relay
001 545 78 05