Hi TT.

Not to hyjack the post, but.
Do I read right, that I need the inertia switch in the boot to cut off the fuel pump when the engine is running? (To stop over fueling)
I didn't take it off, coz I thought it was only for cuttoff in case of a crash.

Cheers

The inertia switch is in case of a crash where the engine remains running. On the eec-iv if the engine stops the ecu kills the pump relay, on some cars there is an external RPM sensing ( tachimetric ) relay that needs a ignition pulse or it cuts the fuel pump.


I am not sure what the IVA manual states.

Your probably not going to over fuel so long as you have a preasure regulator and return.


Remember also that the pump ( certainly injection ones ) draw quite a few amps, and if left running on a stoped engine will drain the battery.

TT

I may as well have a little highjack myself :o

TT
Do you know if the fuel pump relay controls the initial prime of fuel or is this a function of the eec iv

Let me explain a bit better . when you turn on the ignition, normaly you hear the fuel pump prime the system, I assume that the pressure is sensed somwhere & when up to pressure the fuel pump cuts out. :confused:

The reason I ask is because I did not save the Escorts fuel pump relay :o

It's a basic relay, pump control is from the ecu.

If you ever think you have flooded the engine, depress the throttle all the way and the ecu will not fuel during cranking, purging the cylinders.

TT

Thanks TT
 

All good then :)

I'll grab a handful of relays next time I am at the breakers ;)

Soon be ready to rig up the engine for a test fire .... Very much looking forward to that day :D :D

nice one Ronnie, & don,t forget the video of the great occasion :cool:

cheers
andy