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Old 12-10-2016, 12:46 AM
Dave355 Dave355 is offline
Junior Member
 
Join Date: Oct 2016
Location: Australia
Posts: 3
Default No bars on gauge.

Have copy and pasted an email sent to Richard so i don't have to re write,can't seem to get in touch by email so joined the forum to try and resolve my problem.Open to advice from any members who have come across the same issue.System was purchased over 12 months a go so this is probably the right place to sort it out.


Hello Richard
I didn’t receive a reply to the email below but i’m hoping it was just missed as i know your busy.I would like to work through some issues that are stopping me from getting the car tuned.Are you able to help me? I have a breakdown of what is happening and now know why it’s being triggered because of the difference in voltage between + and – wires from injector.You helped another Aussie on your forum that had a Datsun 1600 named Orlando.(Bottom of page 4 in HFS-3 section of forum)He had the same issues due to an Autronic ECU having the wiring to power the injectors only being activated after cranking.I also have an Autronic with a fuel pump relay that turns the power off after initial priming of the fuel system.So my understanding is i need to leave the gauge switched off until engine is started so pump doesn’t get activate after diagnostic phase, which could result in hydro lock.The other option would be to take power after relay so it powers up once cranked and gauge could be left on?Obviously gauge could not be used in #2 position.I there another option by using the green harness or was that because of the low impedance injectors?


All three leds illuminated at pre crank position.Once engine started green led flickers faster with rpm and other two red leds turn off.Linked IDC test pins show full bars on gauge,so full duty cycle with key in #2 position.
Ignition to pre crank position.All harnesses connected, gauge on.Pump starts to spray.NO BARS SHOW ON GAUGE. I haven’t needed to use SYS link as pump is activated anyway.
Everything works as per instructions up to testing by IDC with jet on windscreen.This worked as described but no bars show on gauge when test spraying for IDC.
This is a new install.
Injectors are high impedance.
I have dismantled the FAV and there are no debris in the filter and turbine spins freely.Tank filter was checked and no problems here also.
S is illuminated on gauge so flow sensor is detected.
SC adjustment makes no difference.

Have cut the 1.0 and soldered the 1.5 pre amp gain as per your advice,as not using all of the 1000cc injectors on gasoline.

Contoller's serial No:102083 red board.

Is their a test i can do with a DMM on your diagnostic table to see if yellow WFS is working correctly,or do you think it could be a different problem?
Sorry for the long email but i wanted to give you as much info as possible to work with.
Hoping you can work through this with me.
Regards
Dave
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