450HPZ Posted August 2, 2012 Share Posted August 2, 2012 (edited) I am getting a pulse signal to the injectors, but its very dim on the noid light. I have verified it to be weak on the ground side circuit, and I have verified pins 101-106 are grounded solid. I dunno where to go next? Its a 1981 280zxt . I did a cont test,a load test and they both came up good, but still weak ground on injector harness side.pins 101-106 inside the ecu are connected so I know its not an injector to ecu issue because they all do it. nothing else is affected in the car, but the poor ground wont allow the 12v to the injectors. The power side is great, its only the ground side. I have even installed redundant grounds because the Z cars are know to have problems. Edited August 3, 2012 by 450HPZ Quote Link to comment Share on other sites More sharing options...
RB26powered74zcar Posted August 2, 2012 Share Posted August 2, 2012 Try explaining what car / motor / year you are looking for help with please. See #3 http://forums.hybridz.org/index.php?app=forums&module=extras§ion=boardrules Quote Link to comment Share on other sites More sharing options...
kaito Posted August 2, 2012 Share Posted August 2, 2012 How did you verify weak ground? Did you check voltage on the positive side? (Im sure you did) If its not the ecu then start checking other ground sources, Battery cable, Chassis grounds, Engine grounds. I hate chasing grounds. Does anything else act up in the car? Radio, Lights, Anything? I would start with checking the injector wires first .Just keep in mind that when you do an ohm test, even though it has low resistance the wire could still be bad. (cant handle amp load because of fraying and such. good luck. Your motor wouldnt be a vh45 would it? Quote Link to comment Share on other sites More sharing options...
NewZed Posted August 2, 2012 Share Posted August 2, 2012 Does brightness matter? A flash is a flash is a circuit made and a circuit broken. Quote Link to comment Share on other sites More sharing options...
BluDestiny Posted August 2, 2012 Share Posted August 2, 2012 How is this affecting your car? Quote Link to comment Share on other sites More sharing options...
Victor_Zedman Posted August 19, 2012 Share Posted August 19, 2012 check you connectors for green corrosion, also check your injectors for green corrosion, if the injectors are dirty clean them with sand paper, if connectors are messed up, solder new ones in, they sell them on ebay for like 30 bucks (all six) Quote Link to comment Share on other sites More sharing options...
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