Hughesad Posted August 8, 2020 Report Share Posted August 8, 2020 Hi, Can someone offer some guidance on getting my car to idle, at present I have to provide throttle input to stop the car dying I need to bleed the coolant before sending for professional mapping so need the car to idle The car sounds like it has a misfire, is there a way to test the coils using the ecu? Fuel pressure seems quiet high so perhaps adjusting that will help? Thanks for your help! Adam Basic spec which may affect the map/ starting as below: 300zx G4+ configured for GTR Spitfire Coilpacks NGK BPR8EIX spark plugs Deatschwerks 1000cc injectors ,straight "bolt in" for rb26 (new) Sard FPR (new) Spitfire coil packs 2 x sard fuel pump in swirl pot , one only running at idle Radium twin entry fuel rail NZ wiring trigger kit setup as per NZ wiring instructions HKS 272 Cam shafts Internal Map sensor plumbed to rear of vacumn chamber on standard manifold ( 6 throttles) 300ZX GTR Base Map V4.pclr log 2 8.8.20.llg log 3 8.8.20.llg Log080820.llg Quote Link to comment Share on other sites More sharing options...
Adamw Posted August 8, 2020 Report Share Posted August 8, 2020 Yeah, your need for 30% throttle to idle at 1000RPM suggests it is not happy with something. Did you rewiring the ignition outputs so they are in the correct order? Because if you did you should enter the RB firing order into the ecu, at the moment you still have the VG firing order in there. Another change I suggest you do is open up our GTR base map, go to the fuel table, right click on it, choose import/export>export to clip board. Then connect to your ECU, go to the fuel table and import from clipboard. This will set up the fuel table with TP on the axis more suitable for the ITB's. Quote Link to comment Share on other sites More sharing options...
Hughesad Posted August 8, 2020 Author Report Share Posted August 8, 2020 Thanks adam I'll take a look at that in the morning. Injectors 2 & 5 and 4 & 6 are swapped on the 300zx ecu and rb26 So the firing order rb firing order 1,5,3,6,2,4 becomes 1,2,3,4,5,6, is this right ? Thanks Adam Quote Link to comment Share on other sites More sharing options...
Adamw Posted August 9, 2020 Report Share Posted August 9, 2020 So have you not moved the ignition and injector wires on the header? Quote Link to comment Share on other sites More sharing options...
Hughesad Posted August 9, 2020 Author Report Share Posted August 9, 2020 No I haven't moved the wires, just the firing order in the ecu to compensate Quote Link to comment Share on other sites More sharing options...
Adamw Posted August 9, 2020 Report Share Posted August 9, 2020 Have you checked the base timing. Somethings got to be a mile off for it to need that much throttle to idle... Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.