Reece13 Posted August 21, 2016 Report Share Posted August 21, 2016 Hi, I have recently done an engine conversion from a ca18det to an s15 sr20det vct. Finished hooking up everything and had my link atom wired in but when I go to start my car the injectors aren't firing into the cylinders. The fuel pump is hardwired to the battery and there is fuel going in and out of the fuel rail how ever no injectors are firing. Does anyone have a pin layout for wiring a g4 atom into an s15 loom? I assume the problem is that the ecu is not sending a pulse to the injectors but I have no idea where to start with sorting out that problem. Also, is there a way to check on the pclink if a pulse is getting sent out to the injectors? Any help would be greatly appreciated. Quote Link to comment Share on other sites More sharing options...
jonnyt80 Posted August 21, 2016 Report Share Posted August 21, 2016 Have you setup your triggers correctly? Quote Link to comment Share on other sites More sharing options...
Reece13 Posted August 21, 2016 Author Report Share Posted August 21, 2016 Just running a base map on the ecu at the moment. Not sure if that would automatically set them up. I am pretty new to the link program and haven't checked out too much of it. By triggers do you mean the pattern that the injectors are triggered to spray in? Pretty sure the cylinders fire in the order of 1,3,2 and then 4. Quote Link to comment Share on other sites More sharing options...
jonnyt80 Posted August 21, 2016 Report Share Posted August 21, 2016 I mean have you confirmed your trigger 1 and 2 are correct. If your crank and cam signals are not synced the ecu wont know when to fire the injectors Quote Link to comment Share on other sites More sharing options...
Adamw Posted August 21, 2016 Report Share Posted August 21, 2016 Further to Jonny's comment, you can easily verify your wiring using the injector test function. With ECU connected to laptop and ignition turned on, fuel pump turned off, Go to Fuel>Fuel Setup>Injector test. Set it to Inj 1 (2ms 10Hz), you should hear No 1 injector clicking. Davidv 1 Quote Link to comment Share on other sites More sharing options...
marches Posted February 9, 2023 Report Share Posted February 9, 2023 Is there ANY case where after confirming each injector replies to the Injector Test by reporting a click, that they would not fire in time while turning the motor over? Is there any check that is analogous forbidding spark if trigger1 and trigger2 are not reporting and in proper sync? Quote Link to comment Share on other sites More sharing options...
Adamw Posted February 9, 2023 Report Share Posted February 9, 2023 5 hours ago, marches said: Is there ANY case where after confirming each injector replies to the Injector Test by reporting a click, that they would not fire in time while turning the motor over? Probably more possibilities than I could count. A quicker way for us to help diagnose would be to provide a log of it cranking and your map. How to set up and do the log: https://youtu.be/_P1LRANeO4A Quote Link to comment Share on other sites More sharing options...
marches Posted February 17, 2023 Report Share Posted February 17, 2023 AdamW - Thanks for the reply. Was getting too far into the weeds looking for the issue. Turns out there was a mislabeled wire in the injection harness, once this was sorted all worked as we expect. Thanks again! Quote Link to comment Share on other sites More sharing options...
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