Smokedogwest Posted June 14, 2016 Report Share Posted June 14, 2016 Rite I've got a 91 s13 sr20det just installed a g4+ s15 ecu set it all up and every thing checks out .we set timing up and trigger offset now it will start but only running on two cylinders .do I need to swap jumpers on board and /or swap ignition wires 1 and 2 .any ideas cheers Quote Link to comment Share on other sites More sharing options...
Rich RDE Posted June 14, 2016 Report Share Posted June 14, 2016 Hi Smokedogwest,Take these steps and you should be good to go!! Scott 1 Quote Link to comment Share on other sites More sharing options...
Smokedogwest Posted June 15, 2016 Author Report Share Posted June 15, 2016 Sweet will we need to set up timing again you think Quote Link to comment Share on other sites More sharing options...
Rich RDE Posted June 15, 2016 Report Share Posted June 15, 2016 You will always want to verify timing before tuning. Lock@ 10 deg. and then change offset to match crank timing if needed.Hope this helps. If you need any other assistance let me know.- Rich RDE Quote Link to comment Share on other sites More sharing options...
Smokedogwest Posted June 15, 2016 Author Report Share Posted June 15, 2016 Cool thanks Quote Link to comment Share on other sites More sharing options...
Simon Posted June 16, 2016 Report Share Posted June 16, 2016 Given you have a G4+ you will not need to do the wire/pin change.The jumpers will be all you need to try. Rich RDE 1 Quote Link to comment Share on other sites More sharing options...
Smokedogwest Posted June 18, 2016 Author Report Share Posted June 18, 2016 Tried swapping all jumpers around ended up with no tacho and no 3/4 coil packs. Swapped them back now have all coils ,injectors and tacho now but still running on two.could it be fuel?brand new 1000cc injectors Quote Link to comment Share on other sites More sharing options...
Simon Posted June 21, 2016 Report Share Posted June 21, 2016 Now it will be a case of using the ignition test and injector test functions. With this you can check each drive and hopefully isolate the problem coils or injectors.Also check the firing order is correct in the ECU set up. Quote Link to comment Share on other sites More sharing options...
Smokedogwest Posted June 21, 2016 Author Report Share Posted June 21, 2016 Sweet thanks for your help. Got car running still not hundred percent revs ok around 2000 but not any where else did some logs can't see any thing really . I'll just have to wait for my spot on the dyno next month cheers Aaron Quote Link to comment Share on other sites More sharing options...
JMP Posted June 22, 2016 Report Share Posted June 22, 2016 does it work fine on the stock ECU?I did a SR recently where it was running really poorly, turned out it had lifters which wouldn't bleed down and were holding valves slightly open, verified with a compression test and then leakdown test. Quote Link to comment Share on other sites More sharing options...
Smokedogwest Posted June 24, 2016 Author Report Share Posted June 24, 2016 hi old ecu wont run 1000cc injectors or map or iat sensor and other stuff so i cant try that and i just spent 10k on motor so hopefully its not the lifters but you never know thanks anyways think ill leave it to the tuner to sort out. Quote Link to comment Share on other sites More sharing options...
JMP Posted June 24, 2016 Report Share Posted June 24, 2016 if it's a new build I'd definitely be checking the compression as those stupid lifters are problematic Quote Link to comment Share on other sites More sharing options...
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