Samurai Supra

Thanks mate. I found this article, based on it, I think I have 2 issues, sensor is more than 1m away from the engine & turbo seals are worn. These will be remedied soon, going single turbo.. Hope I don't kill another sensor till then. https://www.nzefi.com/bosch-lsu-wide-band-airfuel-ratio-lambda-sensors-fail-often-aftermarket-performance-applications/

Hi All. I have experienced this error, the sensor would have covered around 5000kms. Is there anything that can be done to prevent it? Is it the sensor at fault or the unit? I have a relay & power is drawn from the battery, I don't have the capacitor. Appreciate the assistance. Thanks

SHouldn't be giving issues with current draw, unless its running out of fuel pressure for your setup.

Parts EPC shows the same ECU in the TT and NA. My tune had polarity set to high, was working fine. What pump do you have?

The factory fuel pump controller is a PWM input speed control unit. Runs 9V on idle & switches to 12V under load conditions. The general consensus is that it runs fine on a Walbro 255, with a 450 it cannot handle the current & cause stalling. I ran my car with a stock fuel system & Link with the three stage PWM setting, worked fine. I tried a Jag/Ford/Continental style controller but had issues (was a 2nd hand unit, most likely was not working well), so as Adam suggested used a normal relay, working fine. To the OP, maybe swap the Aux 2 to FP speed & Speed control method to the 3 stage PWM & see if it works. But if you have a high current draw pump, best to use a relay.

He is, but is so busy, there is a waiting period. Also, he is down south in Margate, so bit of a drive from Durban, about 1.5hrs away. Not the most convenient if any adjustments to be made. I ended up tuning my car myself, busy with a fuel system upgrade then will do a final dyno.

I'm having the same issue with the normalise on, will try with the normalise off. Did you come right with yours?

Hi Adam, getting to target around 2 -3 secs after startup after adjusting min clamp to 50. I'm happy with that setup, will leave it as is. Thanks for the assistance.

Thanks Adam, will give it a shot.

Very quick start, only like one crank and she fired up. No overshoot present. NUR13253 Tune 202000513.pclr Log 2020-05-14 8;11;03 pm.llg

Hi Adam, Updated the firmware, seeing some better behaviour on cold idle. Think I may need to retune the low temp base position, but before I do anything rather you take a look. Latest tune & log attached. Thanks. Log 2020-05-13 7;30;12 pm.llg NUR13253 Tune 202000513.pclr

Thanks Adam, will do that update and report back.

Hi guys. Been getting some strange behaviour on the Supralink & OEM IACV setup I have on my Supra. It was overshooting on cold start to around 2000rpm, I adjusted the base position & changed the min clamp, it has improved to the condition in the attached log. The next issue is a drop in idle base position, then a spike to 2000rpm about 20 seconds into the log. I suspect the valve may be faulty, but want to confirm the settings I have make sense before changing anything. Tune & log attached. Thanks. NUR13253 Tune 20200417 with LC & TC.pclr Log 2020-05-11 2;20;27 pm.llg

Thanks Tim. Appreciate the support.

Ok, understand. Thanks for all the help.

THanks Adam for the detailed check. I had forgotten that the RPM, TP & speed lockout for the TC is set to zero in that file. Sorry about that. If I turn one of those on, the TC table cannot switch. Its not a big issue, but just checking if that is the way the it should be? Thanks again.

Attached the tune. I was referring to TC table switching. This is assigned to button 3 (start position 29) Set to bits. Thks Adam NUR13253 Tune 20200417 with LC & TC.pclr

Yes, thats correct, no PDM. @Adam, Tim from JTI helped me sort out the setup, I understnad now that the DI's being repeated in the stream 2& 3 was the issue. What I'm confused about is how the logging worked being duplicated. The table switching does not work with any of the lockouts being enabled, any idea on that.

I had not assigned any CAL's as yet till I complete my water meth setup, for which I was going to use correction tables against a DI from the meth system. If not using this, think CAL 1 would be base tune, 95 octane & low boost and CAL 2 hi octane, high boost and timing. But none of that has been setup as yet, so was not expecting any repeats. Buttons are 1, 2, 3 for logging, trac disable and trac table switch. I had looked through the file, couldnt find any repeats on the DI's, where had these been? I followed the manuals as much as I could, strange thing is the logging button works fine. Thanks Adam. Edit: Read your reply again Adam, are you saying the CAN DI's on 1501 are only for use on the CAL funtionality? The keypad setup on stream 3 is as per the keypad manual, my understanding is that those CAN DI's can be used to switch functions on the keypad as well. Thats how I set the logging function up and it works fine. I attached the manual I used as well. Toucan Keypad Setup V1.82.pdf

Hi. I have an issue setting up my toucan keypad with the traction disable switch & slip table 2 activation. I have assigned a CAN DI to the table switching, but it does not seem to communicate at all. The traction disable has the same issue, not switching on or off using the traction disable switch status parameter. I have used the exact setup for the internal logging which works perfect, hence I'm a bit unsure on what the issue could be. Attached the tune for reference, hope some can help, pretty new to CAN setups. Note, the launch control is also activated by the Toucan via a CAN DI and works fine. Thanks. NUR13253 Tune 20200417 with LC & TC.pclr

Sorry for the late reply, used Mikes idea, ditched the EVAP, car is running fine.

Did you change Aux 2 to FP speed?

Not 100% sure. My guess is as long as there is enough fuel pressure to not run the engine lean at the lower duty cycle, it should be fine. I would check it anyway to be sure. Maybe some more experienced mappers can comment?

Is the stock fuel pump ecu still in place? Have you loaded the Link Base map? If so, the fuel pump control is set to General Xover. Change it to 80hz 33/66/100%DC. To use this, the Aux output to the fuel pump should be set to FP speed. This is three stage PWM control which according to the help file is the correct setting for the Supra. I had the same issue on my Supralink, the above solved it.

I did charge it, maybe it was not fully charged, will put it on again. Will try the laptop and a new set of headphones. Thanks mate Thanks Adam, makes sense. Will go get a new pair..