> Coil negative connection to ECU is needed otherwise wouldn't run at
> all (tells the ECU when to fire the injectors). A couple of
> possibilities off the top of the head:
Yeah, the coil to ECU connection is present, just a plain wire. It starts
and idles great.
> Are you using the full 280ZX ign system, particularly the coil (no
ballast) ??
Yeah, I'm using the lot as it came from the ZX , coil and all. There's no
ballast on it.
> Do you have the injector dropping resistors in place ??
Yeah, they are there and seem to be working fine. The entire engine harness
is as removed from the ZX. The only connections I have had to make are 1)
the two fusible linked power feeds, 2) coil to ECU connection, 3) power
supply to the EFI relay and 4) the fuel pump relay setup.
I've just tried a different ECU and it's still the same ...cuts the
injectors at 1800rpm.
Eddie
>
>
>
> >Is anyone familiar with the EFI from a 280ZX? I've just fitted an L28E
from
> >a 280ZX into a 1975 Datsun Laurel complete with the injection and I have
a
> >problem. I've wired it up as it should be according to the Nissan diagram
> >and it started first time but won't rev over 1800 rpm! At that speed the
> >injectors cut out and it dies until the revs have dropped a bit then the
cut
> >back in.
> >
> >I've checked all the connections and everything seems fine. The system
was
> >running fine before the transplant. At first I thought it may be a faulty
> >AFM but I've tested it and the wiring harness and it's fine. I've even
tried
> >a different AFM but there was no change. The fuel pressure is fine (I
tested
> >the VW pump before fitting and it was good and I've fitted a new
regulator)
> >
> >The only connection from the ignition to the ECU is the one from the
> >negative terminal on the coil to pin#1 on the ECU....could this be
causing a
> >problem?
>
>
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