Andrew 1.8t Posted July 18, 2023 Report Share Posted July 18, 2023 It's 1jz vvti it came with password locked so i rest it go factory settings and starts from a base map and iam not who made the wiring for it so i checked the wiring and found that the vvt wired to digital input 1 and aux i tried every thing in the map and still no start just make a load pop's from the exhaust any help ... 1jz.pclr Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 18, 2023 Report Share Posted July 18, 2023 What is connected to DI1? The cam sensor should be connected to trigger 2. Can you do a short PC log of it cranking and tell us a bit about the engine - what size injectors etc. Is it really direct spark? Im no expert but I thought most 1JZ vvti were wasted spark? Have you confirmed the correct coils and injectors fire using the injector and ignition test functions? Also you need to go into injector setup and either set them to saturated for hi impedance injectors or if you have low impedance then set the P&H currents correctly. At the moment inj 5&6 only have a 0.1A hold set. Quote Link to comment Share on other sites More sharing options...
Andrew 1.8t Posted July 18, 2023 Author Report Share Posted July 18, 2023 Thanks adam for answer its 1jz stock block and head Audi R8 coils / id1000 injectors And not stock wiring harness The vvti sensor is wired to di1 and aux 3 Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 18, 2023 Report Share Posted July 18, 2023 16 minutes ago, Andrew 1.8t said: The vvti sensor is wired to di1 and aux 3 Im still not sure what you are talking about here. You should have a VVT solenoid or "OCV" at the front of the cam cover just behind the cam pulley, connected to an aux output, aux 3 is fine. Then there should be a cam position sensor towards the back of the engine between about injector 5 & 6 that should be connected to trigger 2. There should be nothing connected to a DI. Quote Link to comment Share on other sites More sharing options...
Andrew 1.8t Posted July 19, 2023 Author Report Share Posted July 19, 2023 Vvti selenoid has two wires right one of them is wired to digital input 1 and the other one is wired to aux 3 thats what i mean and i think it won't start up cause the setting of the digital input but if it can start without the vvt selenoid so forget it and let's see what else can do that i see you mentioned that i do the injector setup wrong can this don't start it thanks in advance and sorry about my bad English cause its not my first language Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 19, 2023 Report Share Posted July 19, 2023 3 hours ago, Andrew 1.8t said: Vvti selenoid has two wires right one of them is wired to digital input 1 and the other one is wired to aux 3 No, one wire should go to Aux 3, the other wire should go to ignition switched +12V supply. However, this wont stop it from running. 3 hours ago, Andrew 1.8t said: let's see what else can do that i see you mentioned that i do the injector setup wrong can this don't start it It would not prevent it from starting, possibly would misfire on 2 cylinders. In your map the coolant temperature shows 77°C and IAT is 55°C, why are these hot? did you have it running on the old map or something? Please do a PC log of a start up attempt so we have some data to look at. Quote Link to comment Share on other sites More sharing options...
Andrew 1.8t Posted July 19, 2023 Author Report Share Posted July 19, 2023 9 hours ago, Adamw said: No, one wire should go to Aux 3, the other wire should go to ignition switched +12V supply. However, this wont stop it from running. It would not prevent it from starting, possibly would misfire on 2 cylinders. In your map the coolant temperature shows 77°C and IAT is 55°C, why are these hot? did you have it running on the old map or something? Please do a PC log of a start up attempt so we have some data to look at. Yes i always start the old map that password locked to make sure that everything still works fine ... Okay i will take a log for the cranking today and post it Quote Link to comment Share on other sites More sharing options...
koracing Posted July 19, 2023 Report Share Posted July 19, 2023 Can you take a PC log of it running on the old tune as well as the new tune startup attempt? Quote Link to comment Share on other sites More sharing options...
Andrew 1.8t Posted July 20, 2023 Author Report Share Posted July 20, 2023 Today the engine starts after i change the ignition setting to wasted spark but the engine sound was upnormal and alot of trigger error that doesn't happen with previous locked map I don't know why and the cam angle test show's that the cam is run between 664to667 and that's upnormal do you think that it can be wrong polarity for triggers wiring cause my trigger offset is set to 205 like normal the log i posted is for it after it start with wasted spark ignition and upnormal sound new omar jz.llg And this log from the password locked file kd jz log.llg Quote Link to comment Share on other sites More sharing options...
Andrew 1.8t Posted July 20, 2023 Author Report Share Posted July 20, 2023 @Adamw Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 20, 2023 Report Share Posted July 20, 2023 It looks like you have a trigger issue. Please do a trigger scope. Quote Link to comment Share on other sites More sharing options...
Andrew 1.8t Posted July 21, 2023 Author Report Share Posted July 21, 2023 3 hours ago, Adamw said: It looks like you have a trigger issue. Please do a trigger scope. The password locked map works great with no issue ! Do you think if i try -155 trigger offset it can help @Adamw Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 21, 2023 Report Share Posted July 21, 2023 3 hours ago, Adamw said: Please do a trigger scope. Quote Link to comment Share on other sites More sharing options...
koracing Posted July 21, 2023 Report Share Posted July 21, 2023 The password locked map may have different arming thresholds. It may be the offset is different. You would need a timing light to verify the offset is correct. A trigger scope is the best way to check the arming thresholds and may shed some light on the offset as well. Quote Link to comment Share on other sites More sharing options...
Andrew 1.8t Posted July 22, 2023 Author Report Share Posted July 22, 2023 @Adamw @koracing Quote Link to comment Share on other sites More sharing options...
essb00 Posted July 22, 2023 Report Share Posted July 22, 2023 Instead of taking a picture of the screen, attach the *.llg file saved from trigger scope capture. ....though it is already obvious there on the picture that in Trig 1 & Trig 2 polarities are reversed. Interchange the wires for each of them. Quote Link to comment Share on other sites More sharing options...
Andrew 1.8t Posted July 22, 2023 Author Report Share Posted July 22, 2023 Here is the trigger scope @Adamw @koracing @essb00 Trigger Scope Log 2023-07-22 6;33;56 pm.llg Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 23, 2023 Report Share Posted July 23, 2023 Both the crank and cam sensors are wired incorrect polarity, you need to swap the +/- wires at the sensor plugs. Quote Link to comment Share on other sites More sharing options...
koracing Posted July 24, 2023 Report Share Posted July 24, 2023 So this car was tuned previously with these backwards or has some rewiring been done since then? Quote Link to comment Share on other sites More sharing options...
Andrew 1.8t Posted July 24, 2023 Author Report Share Posted July 24, 2023 2 hours ago, koracing said: So this car was tuned previously with these backwards or has some rewiring been done since then? No it came to me with old tune with this wiring Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 24, 2023 Report Share Posted July 24, 2023 4 hours ago, koracing said: So this car was tuned previously with these backwards or has some rewiring been done since then? This is why I ignore comments such as "ran fine before", it is very unlikely this would have ever ran well before. Maybe better than now, but never well. VVT wouldnt have worked at all, you would have like 10deg timing drift with RPM etc. Quote Link to comment Share on other sites More sharing options...
koracing Posted July 24, 2023 Report Share Posted July 24, 2023 *And* the tune was locked - because secret sauce I guess #expert Lol. Quote Link to comment Share on other sites More sharing options...
Andrew 1.8t Posted July 26, 2023 Author Report Share Posted July 26, 2023 On 7/23/2023 at 6:48 AM, Adamw said: Both the crank and cam sensors are wired incorrect polarity, you need to swap the +/- wires at the sensor plugs. Are you sure that the trigger 1 is incorrect too ? Quote Link to comment Share on other sites More sharing options...
essb00 Posted July 26, 2023 Report Share Posted July 26, 2023 4 hours ago, Andrew 1.8t said: Are you sure that the trigger 1 is incorrect too ? Yes, it is also wired with reversed polarity. Quote Link to comment Share on other sites More sharing options...
Andrew 1.8t Posted July 27, 2023 Author Report Share Posted July 27, 2023 16 hours ago, essb00 said: Yes, it is also wired with reversed polarity. But the trigger 1 goes to +ve volt first not the -ve Quote Link to comment Share on other sites More sharing options...
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