Originally Posted by safechav
Originally Posted by DazC
Originally Posted by Paul17
There's a feed from the back of the rev counter that goes to the fuel relay acording to the wiring diagrams, It's not the dizzy mines a new one plus we've tried another to that worked on other cars. I've got 2 ecu's n borrowed a series2 won off a mate n non of them worked still had the same fault. it's like something is telling the ecu that it is overboosting when it isn't is there anything that could go faultly and course this???
It shouldn't have a wire from the clocks to the rev counter otherwise the pump relay will be getting false readings!!!!! Last RST Series 1 I had with a wire from the rev counter to the fuel pump relay had a very low rev limiter at around 4k rpm.
You should have a wire from pin 1 on the fuel pump relay to pin 20 of the ignition ECU. It's green with a red trace. This wire also connects to the fuel ECU on pin 25 and to a green yellow which is a signal from the distributor sensor.
The Series 2 RST needs the wire from the back of the rev counter to the fuel pump relay.
Based on that you have written and that other thread we were both posting up on a while back, i assume the series 1 relay derives a different signal direct from the sensor on the dizzy? I know my coil negative rev counter and relay are all off the same wire but ive got series 2 management on my mk3.
As for the battery light it was more than likely randomly touching something on the bodywork/engine, connecting the blue to earth illuminates the bulb.
Yes, the relay takes a raw signal from the distributor rather than the coil pulses unlike the S2 set up. The S2 relay can be triggered by simply touching the gren wire to earth repeatedly where as the S1 relay seems to rely on the waveforms of thelow voltage the dizzy sensor actually produces.