![]() If you have the wrong request ID entered, you're going to be logging some funky value so make absolutely sure to double check the IDs and make sure they're correct!Īs I mentioned earlier, the fuel trims are what the car is doing at that very moment, to keep everything happy. Each value logged by the stock computer is assigned to a Request ID in something called the MUT table. The request ID is where EVOScan looks for it's data on the ECU. ![]() The fuel trim lookups programed into EVOScan are only reading the FRONT LTFT and STFT values! To keep things straight, I suggest you go in and edit the names to show they're for the front, and I'll walk you thru how to setup EVOScan to log the rear bank trims.įirst off, open EVOScan and right click on the Fuel trim display and select Edit Data Items: Many of the values are incorrect! We have been trying to contact Hammish about this and hopefully he'll make the mods to future versions of EVOScan but for now, you're going to need to add these on your own. I'm going to first walk you thru how to setup EVOScan to properly read the fuel trims, as they're what we're going to need to log in order to tune the engine properly.Īnyone using EVOScan will notice there's a check box to log DSM/3000GT/Eclipse OBD II ECUs. I don't know any datalogger out there for the 3/S that CORRECTLY reads all the logging values. So if LTFT is at +12 and 02 feedback/STFT is at +3, then the car is adding +15% at that very moment to try and maintain stoich. LTFT is what the car has learned over time, to keep the car as close to stoich (14.7 AFR) as possible. The 02 feedback is the STFT and what the car is doing at that very moment, to keep everything happy. There are completely separate sets of STFTs and LTFTs for the front and rear banks! On the 98/99 ECUs, you have the Short Term Fuel Trim (STFT) as well as the Low, Mid and High Long Term Fuel Trim (LTFT). In order to properly tune your new injectors, you must be able log the fuel trims. When you install bigger injectors, you will have to alter the SCALING and LATENCY parameters in the ECU to suite the new injectors, otherwise the air fuel ratio settings will be way-out, your car will idle poorly and stall on occasion, run rich and generally behave poorly. ![]() If you get bigger turbos and raise the boost well past 14psi, then definitely get bigger injectors. Generally speaking, the stock injectors will give you adequate fuel flow with a TBE and 10-12 lbs of boost by redline. The stock injectors on the 98/99 3/S are DENSO units rated at 360cc/min. If anything, you'll just make the issues worse!Ī brand new complete throttle body is about $475 thru the dealers that give us a discount and take my word for it, if your car is up there in age/milage, it's well worth just buying a new one or completely rebuilding yours! If your car has any hiccups or idling issues, throwing in larger fuel injectors isn't going to magically cure that issue. No boost leaks, good plugs, wires, fuel filter, O2 sensors, ISC, FIAV, TPS calibrated properly and a squeaky clean throttle body. Prerequisites: First off, your motor needs to be in tip top form. We already have 2 other threads on ECUFlash (one is a Q&A) and it's assuming anyone reading this thread has read and understands the other threads. I'm going to ask the mods to help please keep this thread on topic. In this thread, I'm going to go over the various settings for different fuel injectors and how to properly tune your ECU for them. ![]() We strongly recommend shipping with UPS during this time if you have a time sensitive need.Since we now have the fuel injector scaling and latency voltage tables found in the 99 ECU ROM, we're able to swap in different fuel injectors. Postal service delivery times may be longer than expected, and disruptions in tracking are more likely. SHIPPING UPDATE: In conjunction with the holiday shipping season, US Postal Service has been experiencing increasing delays and service disruptions. Home » Shop » Connectors / Harnesses » Sumitomo » 2 Way Diesel Fuel Injector & Fuel Pump Connector Plug (Toyota # 90980-12747)
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |