alcyonegtb

Sorry to bring back a dead post, but it’s the most relevant I found. So, My Baja Turbo would do this no throttle or stalling issue all the time. One time i had removed the throttle body to replaced something, I can’t remember, and reinstalled everything and it would not start. So I was stranded at my work for 2 hrs. Screwing around with anything and everything I touched. Finally it worked after multiple restarts and pulling the throttle body off and on again. That was on the original engine. Fast forward to Monday. Car started acting funny, diving and bucking while on the throttle steady. Then I had nothing while on the highway. Pulled off and the throttle was stick at 3k but on showing 17% pedal. (So no power at 17% bc I remapped my throttle for a more linear feel.) Turn the car off then I’m again and everything works. But it continues to sporadically dive and buck on throttle. The TPS Duty is straight bonkers. Pedal shows normal and TPS voltage shows normal on the AP3. Not sure where the values are checked. My BMW does the throttle bucking at very light throttle, just like the Baja, and the fix for that seems to be a total system parameters relearn. I did it 1 at a time and it changed when I relearned the MAP sensor. Hrrmmm. Back to the Baja. Here’s the long winded kicker. I have had an erratic idle since I put the EJ20Y in. The only things that are the same are the wiring harness, the coolant sensor, the map sensor, and the FPR. And the factory Subaru Air/Fuel sensor is mostly new, roughly only 3,000 miles old. Now it’s possible the the throttle body from the EJ20Y is f***ked. I have tried to relearn the throttle every way possible at least a dozen times and it’s always all over the place, diving from rich to lean. It Definitely seems worse the colder it gets, but it could just be time. I don’t remember it doing the stumbling part last winter, but the idle is the same. So much so, that my tuner gave up on the car stating something mechanical is wrong with it, and that’s why I got a Cobb tuner license and started tuning it myself. But I’m starting to lean towards the wiring harness. It does make sense, it controls all the data moving to the ECM. Thoughts? Sent from my iPhone using Tapatalk

Like the JDM factory map? or a custom base map?

Has anyone ever seen the factory JDM map? I'm very curious on how the AVCS and Ignition timing are setup. Under standard timing belt setup, i was able to get waaaay more pull out power with starting the timing at 20 degrees at 0 load and ending at 10 degrees at load of 2.5. I also added 25 degrees of AVCS across the board on 800 & 1200 rpms. Its a dramatic difference! and I'm wonder what kinda truth is in retarding the exhaust cams to increase overlap, effectively adding AVCS across the board to maybe match the stock setup on a standard engine with on single AVCS?