I've been having some issues with my 1995 Mini SPI injector.
Towards the end of last year, I started having issues where after it was running for around 10-20 minutes, it would conk out.
After fiddling around with a number of things (unsucessfully); vacuum lines, temp sensor, ecu, I garaged the car over the winter and have only just got round to trying to get it fixed again.
As it had been sitting for 6 months, the fuel had started to go off, so it wouldn't properly start.
I then replaced the fuel and gave the whole system a good flush (by bridging the fuel pump relay connector on the relay unit) and removing all the old fuel.
After giving the injector a soak in brake cleaner and flushing the pipes with clean fuel, the engine ran (a bit rough but still running) for over 30-40 minutes. At this point I also found via the diagnostics, that the lambda sensor wasn't givving good readings so I was going to replace that with the correct Bosch one.
As I noticed the spray pattern from the injector was poor, I sent the injector away for cleaning.
When the injector came back, I reinstalled it and the car will no longer start.
I have checked the fuel pressure, and I am getting aprox. 1 bar.
When testing the injector via the diagnostic socket plugged into my laptop, I don't hear the click that I'm expecting.
With my multimeter connected to the plug on the loom, it was registering a frequency (about 10 kHz), so it looks like it is sending the signal.
I used a couple of wires connected to a battery and tapped the injector pins (under the yellow cap), and this did make the injector pulse.
I have also tried a spare ECU (which was working previously) and a second-hand injector (but this seems to be stuck open).
Any ideas for other things to try to get the car running would be very much appreciated.
Thanks.
