Bigwrench88 Posted March 5, 2016 Report Share Posted March 5, 2016 I'm working on a 1jz non-vvti swap that wont start and has some inconsistent issues. The engine, harness, ecu... basically the entire electronics have been removed from another car that was written off in a front end collision, so anything is possible i'd say. The Crank angle sensor is wired into trig 1, defined as reluctor. The CAS is wired into the rear sensor on this 1jz (there are two) and configured as sync cam level.The RPM reads about 180 when cranking. The trigger 1 and trigger 2 signal indicators light up green and there are no trig errors (counter shows 0 after cranking any amount of time). Percentage FCut and percentage ICUT indicate a value of 100 when cranking and 0 when not (I searched and could not find any sort of engine protection that would cause this in every single tab). I can trigger all 6 injectors with the test mode in the tuner software. MAP, TPS, IAT, ECT ALL read values that make sense.I also noticed that the left column where all the ignition and injection outputs are listed, none of them say ON when cranking. they all say OFF.I have attached a picture of the trigger scope readings during cranking. It seems the signals are very erratic and poor according to the scope, which doesnt make sense since the RPM is reading properly and no trigger errors. Any ideas what may be wrong with this setup? Quote Link to comment Share on other sites More sharing options...
Adamw Posted March 6, 2016 Report Share Posted March 6, 2016 (edited) Sounds like ECU hold power or maybe the anti-theft function. Check no digital inputs are assigned to anitheft and read help about ecu hold power function so you can make sure that is set up right.Edit: Actually just noticed in your screen shots above ECU hold power is active so that your problem. Edited March 6, 2016 by Adamw added hold power Scott 1 Quote Link to comment Share on other sites More sharing options...
Bigwrench88 Posted March 6, 2016 Author Report Share Posted March 6, 2016 Thanks ill go read up on Ecu hold power function! Had no idea what it was but t does say On ! Quote Link to comment Share on other sites More sharing options...
Ken Dunkley Posted March 9, 2016 Report Share Posted March 9, 2016 Hi- Just noticed on your trigger 1 screen - the multi tooth position says ' cam ' . If its on the crank wont it be reading at half engine speed ? Scott 1 Quote Link to comment Share on other sites More sharing options...
Scott Posted March 9, 2016 Report Share Posted March 9, 2016 Good spotting Ken. I checked and according to our info normally the crank signal has 12 teeth. Bigwrench88 has it set to 24 tooth on the cam, while this is not correct it should still run. Quote Link to comment Share on other sites More sharing options...
Bigwrench88 Posted March 9, 2016 Author Report Share Posted March 9, 2016 One i figured out the hold ecu power function it fired up. Ill try and correct the trigger settings. It was running, only for short amounts of time for the moment. Thanks for the assistance everyone it is much appreciated ! Quote Link to comment Share on other sites More sharing options...
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