BigBoiMR2

Thank you for this info. I've put a large spike into my VE table to deal with a lean spot in my map between 3000 and 3200 rpm on my 3sgte and was wondering if it was a mechanical issue, good to know that its normal.

I'll work on the car tomorrow and I'll let you know if I need any more help after. Thanks.

Alright, I'll do a manual calibration. I am using a Link G4+ ST205 PNP that has the E-throttle mod done by you guys. I was mostly curious if you have any recommended PID settings because the HP Academy webinar recommends asking the ECU manufacturer for the PID settings. If not I think I'll be able to get them dialed in now that I don't have to worry about passing the calibration.

Hello, I have just installed the toyota 3urfe 5.7l v8 E Throttle on my Toyota mr2. The wiring is correct and I was able to complete the throttle calibration by lowering the pid settings to P: 2.00 I: 0.020 D: 4.00 Deadband set to %0.00 After switching to ON the throttle works, but with constant foot pedal movement the TP/Target error accumulator exceeds 100% and shuts off. If I raise the pid values then the calibration will not complete giving me Error 16: Cannot reach target 98% Is it safe to pass calibration with the lower values, then increase the pid until I get proper tracking? Also, I see that you have the 3URFE throttle wiring in the help file, do you have recommended PID settings for this throttle body? Thanks, Cameron

Alright I'll look into getting that stabilized. Thanks

Hello, I've had my Can-Lambda installed and working for over a year. I had some issues after I first installed it but I added the capacitor as per the quick start guide and it has been working great since then. Just this weekend on track the unit started cutting out and back in giving multiple errors. error 16, 33, 34 and 53. I am only getting this issue on the track, it happened every session and works normally under regular conditions. i've attached the log and map files, please take a look and let me know what you think. https://drive.google.com/drive/folders/1DhGkw23ThG9M_77oR8qJ3NIToVJeSrZk?usp=sharing the forum says 267kb file size limit so ive uploaded them to my google drive. Thanks, Cameron

I am using a distributed system on a gen2 3SGTE so I have set it up according to the help file. https://photos.app.goo.gl/YmBNyWW3KiAT8Qea9 Thank you for the clear explanation! Cameron

Hello, I've been logging different values with 4d ignition trim and other ignition trims active. Comparing "ignition table" values to the "ignition angle" value, I can see how all of the trims affect the "Ignition Angle" But with the "Knk I-Trim" I can see that value change but it doesn't change the "Ignition Angle" value. Is this correct or does this mean my knock trim isn't functioning? If it is normal is there a value that shows the final ignition angle applied to the engine? Thanks, Cameron knock i trim example (2).llghere is a small log that shows knock trim without affecting the ignition angle value.

I used a Dell Venue 8 pro tablet that supports OTG charging with a special cable. https://www.amazon.ca/dp/B00LTHBCNM/ref=cm_sw_r_cp_awdb_t1_DD18CbYCQ9HWM Only certain tablets support OTG charging so that needs to be confirmed before buying a tablet.

pin 42 for knock sensor input pin 46 for ground wire and shield ground. only ground one end of the shielding and make sure its connected to the pin or it may pick up more interference.

Ok, I will get an expansion connector and some external pullup resistors so I can add the extra sensors I need. Thanks!

Hello, I'm looking at adding an oil temp sensor to my Link ECU, it it the MR2Link PNP V3 ST205 version. In the ecu settings I have used an temp 1-3 for ECT and 2 IAT inputs one pre and one post intercooler. I would like to add oil temp as well. I see AN-Temp 4 is unused Looking at the pinout information for the ecu, I am unable to find An-Temp 4 on the main plugs or any of the expansion connectors. Does it exist? Also if I wanted to add a fuel temp sensor later would it be possible or would i have to replace one of my IAT Sensors? Thanks, Cameron

Hi Adam, Yes I installed the 5.6.6 pclink today. No worries, it seems to be a minor issue as it only happens under those rare conditions. If I put 1% in my charge correction table in place of 0 will that be a temporary solution also? Thanks, Cameron

Hi Adam, I've downloaded the updated PClink software, and the firmware that you have sent me. When I select the firmware after clicking browse I get this error. Firmware block size did not match file. I redownload the file from your link and got the same error again. Thanks, Cameron

Hi Adam I appreciate your quick solution and clear explanation. I will update the firmware and let you know if I have any more issues. Thanks!

Hello, I am tuning a 3sgte with a link G4+ Extreme PNP. I am having a weird issue that happens occasionally, at the moment it only seems to happen on the first pull after warming up the engine, when the intake temps are still cold. during the pull i could feel it sharply lose power a couple times in quick succession. Checking the logs showed the Injector duty cycle dropping sharply a couple times. the first drop seems to be from the accel enrichment turning off, but the second drop I can't figure out what is causing it. I noticed that when the Duty cycle drops the second time I've noticed the "Air per cylinder Estimate" drops by half; the same as the injector dc. as far as I know that is calculated from the IAT and MAP, during this period those 2 values are consistent. Is there another value that could be affecting it? Maybe there is something else obvious that I am overlooking. I have attached the log file as well as my tune file. Thanks, Cameron weird fuel issue cold pull.llg WIP Roadtune 3SGTE.pclr

Ah yes that is a good point. I have run some braided ss fuel line from the rail and mounted the sensor to the chassis to isolate it from vibrations and hopefully that will reduce the chance of it failing again. I will be keeping an eye on the readings and maybe figure out some kind of safeguard to implement. Thanks, Cameron

Yes that is correct, I did have it set to map references when I was having issues with the sensor. @motomattx what is not to trust about the setup? I have verified the pressure with a manual gauge and now have the sensor installed and it is reading the correct pressure. I am running the stock 1:1 rising rate regulator with a bored out fuel rail and 540cc injectors on a 3SGTE. I have a Walbro 250 for my fuel pump and wired the OEM fuel pump resistor to be switched by the ECU. I was having issues with fuel temp as well as fuel pressure being too high at idle and cruise. With the fuel pressure sensor installed now, I have been able to correctly set the resistor crossover point based off the injector pulse width. With the reduced flow at idle and cruise and additional heat shielding around the fuel delivery components I have greatly reduced the issues I was having that I attributed to fuel temp. And yes once I confirmed the replacement sensor was working properly I switched the ecu to FP Sensor in the fuel config and re-tuned the fuel map. Also, since iI do not currently have a fuel temp sensor, if the fuel temp increases enough to lower the pressure in the rail, the ecu will be able to at least partially compensate for that before closed loop lambda corrects the difference. Thanks, Cameron

It was a faulty sensor, AEM replaced it under warranty and everything is working correctly now.

The issue seemed to be getting worse, the sensor used to read normal after first start in the morning until about 30 minutes of driving, but today it didnt read correct at any point. I've removed the sensor now while logging and it still shows 55 psi, if I unplug it the reading drops to 0 and plugging it back in it spikes to 55psi again, so it seems that the sensor is the issue. Thanks for all of your help and suggestions, I'll be trying a new sensor when I can and I'll report back if I have any more issues!

This photo shows when the manifold pressure is high enough and the true fuel pressure rises above the sensor reading it does track the fuel pressure change. But the fuel pressure sensor wont read below the level it rose to. Here is my tune file https://drive.google.com/open?id=11MN5eOtoGlmcGjYPoq5eDKvGpMTDPsmx Here is the Log from the most recent screenshot https://drive.google.com/open?id=1iB1gyl1of2LDCfKXT0W6wybrZRP3wEBa Thanks

It seemed to be reading accurately. with the mechanical gauge once the fuel pressure dropped the car would run lean at idle, since the ECU wasn't able to adjust for it. Now with the sensor it is thinking more fuel is going into the engine with the high sensor readings so again the engine is leaning out at idle LOL. After first start and warm up it idles on target until the readings go too high. In this photo I have the ecu fuel pressure calculation based off base pressure with MAP reference so the sensor reading is not affecting my AFR. The area I have circled you can see the Pressure reading is high and it isn't changing, even as the manifold pressure changes. when the sensor is working properly even the slightest map change will register a fuel pressure change as it should. The Fuel pressure regulator, rail, lines and injectors have all been replaced and ruled out as issues.

Yes, I had a mechanical gauge mounted in the same spot for a few months and the fuel pressure would actually drop off a little after a long drive in the summer, I've heat wrapped a few fuel parts to take care of that issue, but wanted the pressure sensor to help keep fuelling on target even if the pressure drops a little. Another thing that confirms the fuel pressure is not actually rising is that when the sensor reads high, the engine will idle lean as it thinks there is more fuel passing through the injectors than there actually is. When the sensor is reading high, around 54psi and idling lean, If I manually set the fuel pressure to 43.5 psi it will idle on target again.

I've had the sensor off the car, and tested it with a air compressor, plus it does work for a while until it seems like a charge builds up and affects the minimum reading. Could the sensor have a bad ground that may not be properly discharging the voltage? I'll hopefully get a clear log tonight so I can show what I'm talking about more clearly.

I was looking through my saved logs and I dont seem to have any good examples saved, I will get a better log and upload it when I can. The issue mostly shows up at idle, the sensor will be reading say 54psi at idle and causing the car to idle really lean, if i change the fuel pressure setting to map based with 43.5 psi base it will correct the afr. Once it starts to read 54psi, it will run lean at light throttle also until the actual fuel pressure reaches 54psi, then it will track on target again. Thanks for your response