bigjoe Posted October 29, 2015 Report Share Posted October 29, 2015 So I'm not getting ground to the injectors . N i manual put ground n they spray . Link to comment Share on other sites More sharing options...
mechengrkj Posted October 29, 2015 Report Share Posted October 29, 2015 Wait...So they spray if you ground the body of the injector or if you ground one of the pins on the injector? Link to comment Share on other sites More sharing options...
bigjoe Posted October 30, 2015 Author Report Share Posted October 30, 2015 Ground to the body Link to comment Share on other sites More sharing options...
StarquestRescue Posted October 30, 2015 Report Share Posted October 30, 2015 The ecu needs to see a rpm signal to fire the injectors. The tack should jump a little during cranking the engine. If it does not, you likely have an igniter or distributor problem or no power to the igniter. Link to comment Share on other sites More sharing options...
bigjoe Posted October 30, 2015 Author Report Share Posted October 30, 2015 Ok it jumps when cranks Link to comment Share on other sites More sharing options...
scott87star Posted October 30, 2015 Report Share Posted October 30, 2015 Do you have spark? Link to comment Share on other sites More sharing options...
Kenny G Posted October 30, 2015 Report Share Posted October 30, 2015 check your fusible links and grounds. also check/swap your ECI control relay under the right kick panel above the ECU. Link to comment Share on other sites More sharing options...
bigjoe Posted October 30, 2015 Author Report Share Posted October 30, 2015 Yes I do have spark . I will check that stuff u said Kenny Link to comment Share on other sites More sharing options...
ucw458 Posted October 30, 2015 Report Share Posted October 30, 2015 If you have spark then the ECI relay is powering up. That relay has 2 circuits. The first with ignition on powers the ECU, injectors and ignitor. The second powers the fuel pump when the ECU tells it to turn on. Both get power from a single wire running off the ECI fuse link. If you are not getting an ignition pulse to pin 1 on the large ecu connector then you have a wiring problem. White wire in the corner of the connector is the ignition signal wire. If you do have a signal there and injectors have 12v+ then you could have a bad ECU. Link to comment Share on other sites More sharing options...
Caliber308 Posted November 27, 2021 Report Share Posted November 27, 2021 (edited) Sounds like it is time for some new fuel injector clips 😉 Wiring instructions are in the FAQ section on this site. Bill Edited November 27, 2021 by Caliber308 Link to comment Share on other sites More sharing options...
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