Adamw

You can connect the temp sensor signal to pin 6, this is connected to AN Temp 2 at the ecu end. The pressure sensor signal can connect to pin 3, this is AN Volt 2 at the ecu end. The AFM baro pin is not connected to anything at the ecu end. Although you could use the wire to take the flex signal back to the ecu if that was convenient. I believe that wire goes to pin 85 at the ecu end, so you would have to unpin that wire and move it to a DI - for example DI5/pin 44. The ground/5V/12V connections are all ok as you have suggested.

Wheelspeed input via CAN is fine. Most of the plug-in ECU's for modern cars get wheelspeed via the ABS ecu. Not too many wheelspeed to CAN devices in the aftermarket though. ECUmaster and AEM have one I think. CAN DI's can be used for virtual auxes. Since there are so many different ways to acheive things, the best way to see if something is possible is to try to set it up in the software yourself, you will quickly find what is possible and not. List below is what inputs can be received over CAN. You will notice Analog input and digital inputs options are pretty limited compared to hard wired inputs.

Something is not wired as you believe. The only way the boost solenoid could cause a back feed was if it still has 12V to the other side of it after the ignition has switched off. This supply relay is staying alive for some reason.

Can you attach your tune and give us a log of it happening. Start the log with engine running, turn off ign (leave log running), wait a few seconds, turn ign back on, (hit F3 to connect if not in auto connect mode), then start engine and record for a little while longer before stopping log and saving.

Ok, I found your tech support case, so it appears they have connected CAN1 to the socket. So your map above should work. However in your support case there is a note from the service technician that he originally had trouble getting CAN to work with your map. When he loaded a new map in it all worked. I have just tested your map in another ecu on the bench and it works ok for me so Im not sure if that comment above is relevant - but I think worth eliminating. So, can you try loading in the map below and see if Lambda 1 then shows a valid number. You wont need to run the engine, just ign on should be all it needs. Toyota JZX100 7Bar Plugin CAN test.pclx

@wastegatein 6.22 the ability to use CAN analogs and math for gear position was added so I think we could make your request work now if you still wanted to do that.

You will really need a wideband connected if you want to do any fuel tuning.

Has it been tuned? Looks like not enough fuel. The RPM starts to drop when the post start enrichment fades out, then you blip the throttle so it gets a big dose of accel enrichment which brings it right for a second or two, then RPM drops again as the extra fuel is consumed. If it has been tuned and used to idle ok then that would suggest fuel flow has been lost for some reason.

With ecu unplugged and ign off, do you still have any voltage on pin 59 in the loom plug? With ecu plugged back in, ign off, eccs relay unplugged, do you have any voltage on pin 59?

Try TE Economy power 2.5 #1969442-5, I've never tried myself but I believe they are meant to be a compatible alternative.

Yes it is a JST XA series, widely available. You do however need a relatively special crimp tool to crimp them acceptably.

The wire from the ignitor is not a "ground", with the stock coil this wire would only be grounded during the dwell period (ie, about 3ms every TDC). Smart coils should be grounded to the cyl head.

The instructions above are assuming you were using realdash. If you want to use just a generic OBD2 app then setup would be as per the help file below.

Injector timing will also unlikely make a lot of difference. More likely something that more significantly impacts torque production - for example ignition timing or cam timing is not at MBT. Make sure lambda target is close to stoich in all normal driving ranges - generally you can keep it stoich up to around say 80kpa MAP. Best injector timing at idle can be determined by moving the injector timing up or down until the lambda shows the richest value (CLL off). The injection angle where you get richest lambda means the fuel is being used most efficiently.

I would say arming threshold is likely the main issue. You can see in the screenshot the arming threshold being used was 0.8V, yet some of your teeth only reach about 0.6V, this means the ecu would ignore these teeth and therefore wouldnt receive the correct trigger pattern. Lower the cranking arming threshold to about 0.3V. I will attach below a map from our EJ207 test car, it starts well so you can probably use settings such as pre-crank prime, first crank prime etc as a better starting point. The charge temp table also works pretty well in this car (stock sti top mount IC). Subaru WRX V11 2007-2011 Push button start.pclx

G4+ is very limited in terms of CAN analog input functionality. You can use the voltage on the axis of tables or log it, thats about all. You cant apply labels, units or calibrations, you cant use them as sensor inputs. So you wont be able to do fuel level. On/Off type outputs can be done, PWM output over CAN is limited to FP speed only from memory. CAN digital inputs can do some of the same stuff a hard wired DI can do but there are many limitations with these as well.

In that case your setup will be working correctly as is and needs no changes. Except I'm not sure how you assigned an analog input to lambda 5. FYI, the exhaust pressure compensation is done inside the CAN lambda devices. The ECU sends calibrated pressure to the CAN lambda, they take it into account in their O2 calculation and send compensated Lambda back to the ECU. The AFR500 does not have any of this functionality so will always assume exhaust pressure is at sea level atmoshpere.

Can you attach a copy of your tune. There is a way we can do this, but we will need to set up quite a few custom streams so we may not be able to depending what else you have set up in CAN.

Can you give us a PC log of a start attempt. Can you also give us a trigger scope taken at idle. Some of your start up fuel settings are a bit unusual but id like to confirm trigger first.

If the ignition mode is set to direct spark then using the ignition test function there will be a spark signal sent to each coil. If you get now spark when doing that then you have a wiring issue somewhere. Do you have an LED test light?

Can you attach your tune, I will set up some extra channels in the CAN stream for diagnostics.

That should have been correct as far as I can see. Can you try changing the sender source address to 254 in the gauges and use the 419360510 ID in the ecu. Where about's are you in the world? - would you be prepared to send us one to test?

Fuel pressure shows zero in both those logs. Was the fuel pressure sensor working?

Link dont offer a premade OBD2 adapter to do this. It would have to be custom made.

To confirm the voltage calibration try unplugging the sensor, Im pretty sure the AEM controllers show 1.00 Lambda with the sensor unplugged. If that looks ok then I would suspect the sensor or possibly an air leak somewhere.