rossco5 Posted March 8 Report Share Posted March 8 Hi, I have got a problem with my 1uz not starting, theres no spark on crank but there is on test, I'm hoping its settings on the ecu and hopefully someone can help me thanks Ross PC Datalog - 2024-03-8 2;04;15 pm.llgx Quote Link to comment Share on other sites More sharing options...
Adamw Posted March 9 Report Share Posted March 9 You've got several issues by the looks. A trigger issue, the RPM drops to zero about once per rev when cranking. Attach a trigger scope and a copy of your tune. TPS is bouncing all over the place but AN Volt 1 voltage is sitting steady at 4.95V. Suspect this is not working and has been calibrated like that. ECT is not working/open circuit. Fuel pressure is zero. Quote Link to comment Share on other sites More sharing options...
rossco5 Posted March 9 Author Report Share Posted March 9 attached some more logs , checked wiring and all looks good continuity all good c checked the crank sensor and appears to have ok resistance fixed tps i think no fuel at the moment as working on spark and no water either as no rad, hoping these dont affect spark Trigger Scope - 2024-03-9 11;50;00 am.llgx TriggerScopeLog.llg5 PC Datalog - 2024-03-9 11;52;38 am.llgx Quote Link to comment Share on other sites More sharing options...
Adamw Posted March 9 Report Share Posted March 9 17 hours ago, Adamw said: Attach a trigger scope and a copy of your tune Need a copy of your tune. And your scopes look like you clicked capture when the engine wasn't cranking. You need to click capture when the engine is cranking. Fuel pressure and ECT are still both not working. Kelvin127 1 Quote Link to comment Share on other sites More sharing options...
rossco5 Posted March 10 Author Report Share Posted March 10 hopefully these are right no fuel at the moment and no coolant either due to no rad,, just trying to run it 1st.pclx Trigger Scope - 2024-03-10 3;13;06 pm.llgx TriggerScopeLog.llg5 Quote Link to comment Share on other sites More sharing options...
Adamw Posted March 10 Report Share Posted March 10 Something is wrong with your cam wheel or cam sensor wiring. You are getting 1 pulse every 12crank teeth instead of one every 24T. And their shape is distorted also, one goes negative first, the other goes positive? Like it has a big long half moon tooth or something? Or do you have both cam sensors connected somehow maybe? Quote Link to comment Share on other sites More sharing options...
rossco5 Posted March 10 Author Report Share Posted March 10 only have 1 cam sensor connected but I'll check the wiring again , anything else worth checking Quote Link to comment Share on other sites More sharing options...
Adamw Posted March 10 Report Share Posted March 10 Is the other sensor removed/unplugged? From memory the grounds are shared in the stock wiring so if you are using any of the original wiring you may have ended up with the two sensors wired in series. Otherwise the only way two pulses could be generated is with two teeth or one long tooth on the cam wheel. Kelvin127 1 Quote Link to comment Share on other sites More sharing options...
rossco5 Posted March 10 Author Report Share Posted March 10 no the other sensor is still pluged in and i am using most of the original loom, ill try it unpluged and maybe run new wires to the cam sensor Quote Link to comment Share on other sites More sharing options...
rossco5 Posted March 11 Author Report Share Posted March 11 yay it started but only ran for a few minutes I unplugged the right hand cam sensor and ran new wires from the crank and cam sensors to the ecu i also had them in the wrong ground pins to the ecu i think, i had them in the trigger ground which i think is for the shielding? so put them to the sensor ground next to the power ground Attached another log maybe you could see why it only ran for a minute Thanks TriggerScopeLog.llg5 Quote Link to comment Share on other sites More sharing options...
Adamw Posted March 11 Report Share Posted March 11 That scope file shows no signal. Make sure you only click the capture button when the engine is cranking. Quote Link to comment Share on other sites More sharing options...
rossco5 Posted April 20 Author Report Share Posted April 20 Back with the same problem wonder if someone could check the logs for me thanksTriggerScopeLog.llg5 Trigger Scope - 2024-04-20 4;37;53 pm.llgx Quote Link to comment Share on other sites More sharing options...
Vaughan Posted April 22 Report Share Posted April 22 Based on your earlier basemap I would remove the filtering from trigger 1&2 and set your trigger 2 arming threshold value to 0.3V. Note in that trigger scope the trigger setup is happy and synced, are you seeing spark being triggered now? Quote Link to comment Share on other sites More sharing options...
rossco5 Posted April 22 Author Report Share Posted April 22 I’ll change those settings, and yes managed to get it running ok, the igniters were not grounded properly, thanks Quote Link to comment Share on other sites More sharing options...
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