I`ve never had a problem like this... so experience with `no start`is so limited as I now see!

Hope you can help.

240 `89 sedan b230f LH injection

It has never had a problem as such, been a perfect starter from -30 to +30 degrees year round. Car has roughly 200K miles.

Fuel pump relay 2 yrs old. Anyhow I tested power into it, and tested the two relayed outputs, work fine. Opened it, relays function as expected, pumps run as I can hear them.

When cranking, fuel spills out of the return line at the fp regulator, so no fuel `delivery`issues.

Tested spark by putting a large screwdriver into the wire end and getting close to ground, easily visible spark (tested cyl number 1)

I verified one of the connections (of the two wires per injector) has +12 volts coming from fuel pump relay (as seem on haynes schematic). Other side of injectors goes to ecu.

ECU is 561, original.

The fuse behind the battery .. I replaced the holder with a waterproof one 2 years ago, still nice and clean and I checked fuse OK.

What`s this radio sup^presion relay, where is it, and can it cause my problem.

Tried unplugging AMM and still no start.

BTW NO start meaning that I have not heard any `firing`going on at all. Just a crank, pause, crank, etc...

Hope I can get help, and hope it`s somethying other than that 561...

Greg Mustang
Montreal
Canada