Tuning problem
#21
Originally Posted by yamaha16bw
If you remove the o2 sensor you will get a CEL and the car will run like total crap. It will rely on the MAF for all tuning. Have you call Dezod? How long have you had the Black box on? Could be that the a/f are too different when switching from closed to open loop that the car goes into limp mode. It could even be a dead o2 sensor. Mine just died on me the other day and I was getting a similar problem.
#23
Originally Posted by Whocares05050
Originally Posted by yamaha16bw
If you remove the o2 sensor you will get a CEL and the car will run like total crap. It will rely on the MAF for all tuning. Have you call Dezod? How long have you had the Black box on? Could be that the a/f are too different when switching from closed to open loop that the car goes into limp mode. It could even be a dead o2 sensor. Mine just died on me the other day and I was getting a similar problem.
Then you have a 24/7 CEL.
#26
Originally Posted by yamaha16bw
Originally Posted by Whocares05050
Originally Posted by yamaha16bw
If you remove the o2 sensor you will get a CEL and the car will run like total crap. It will rely on the MAF for all tuning. Have you call Dezod? How long have you had the Black box on? Could be that the a/f are too different when switching from closed to open loop that the car goes into limp mode. It could even be a dead o2 sensor. Mine just died on me the other day and I was getting a similar problem.
Then you have a 24/7 CEL.
We get a 24/7 CEL even with the 02 sensors plugged in. Car actually runs better when there IS a cel....
Reseting the ECU and getting rid of it, the car feels sluggish. Then when the cel kicks back on...it's alive again!
#27
Originally Posted by yamaha16bw
You still shouldnt have a CEL if you are using a antifouler. If your not using one go to autozone and get one and you CEL from the exhaust will be gone.
The CEL on our car when you read the code, comes back as the PRIMARY O2 Sensor, not the Secondary. Anti-fouler trick does not work for us, and most people with the ZPI S-pipe, because the bung is actually pushed back, therefore eliminating the CEL. So, the Anti-fouler trick is not needed with this S-pipe.
#29
Originally Posted by yamaha16bw
Originally Posted by Whocares05050
Originally Posted by yamaha16bw
If you remove the o2 sensor you will get a CEL and the car will run like total crap. It will rely on the MAF for all tuning. Have you call Dezod? How long have you had the Black box on? Could be that the a/f are too different when switching from closed to open loop that the car goes into limp mode. It could even be a dead o2 sensor. Mine just died on me the other day and I was getting a similar problem.
Then you have a 24/7 CEL.
#30
Senior Member
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Scion Evolution
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Join Date: Feb 2006
Location: Marysville, WA
Posts: 330
ok so back to the problem anyone know how to fix this, ive tryed the fuse, and unpluging the o2 sensor, still the same problem. and tryed taking out alot of fuel but still does it. in 4/5th great it does it at 3800 rpms
im running 10psi of boost. but again like i said no dyno or tuners where i live
im running 10psi of boost. but again like i said no dyno or tuners where i live
#32
Originally Posted by scion-tc-turbo
ok so back to the problem anyone know how to fix this, ive tryed the fuse, and unpluging the o2 sensor, still the same problem. and tryed taking out alot of fuel but still does it. in 4/5th great it does it at 3800 rpms
im running 10psi of boost. but again like i said no dyno or tuners where i live
im running 10psi of boost. but again like i said no dyno or tuners where i live
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#35
post up when you find out whats up.
i notice this "bogging" to be more prominent when the car is hot lapped. when i give the car a run after letting it idle for a while, it seems to hold the tune. however, once i do a run right after that, i get that same bogging at around 4500 rpm (doing second gear runs).
i notice this "bogging" to be more prominent when the car is hot lapped. when i give the car a run after letting it idle for a while, it seems to hold the tune. however, once i do a run right after that, i get that same bogging at around 4500 rpm (doing second gear runs).
#36
one thing me and my tuner have noticed about emanage and the tc is, the tc is smarter then the emanage. the tc will eventually outlearn your tune and has been good practice for me to reset my ecu about every 3 weeks. remove your efi fuse and wait, reinstall then start your car and idle it for about 10 minutes. this allows the emanage to take control again. some people argue with this but i can speak from experience in my vehicle, it helps.
#37
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Originally Posted by scion-tc-turbo
ok so back to the problem anyone know how to fix this, ive tryed the fuse, and unpluging the o2 sensor, still the same problem. and tryed taking out alot of fuel but still does it. in 4/5th great it does it at 3800 rpms
im running 10psi of boost. but again like i said no dyno or tuners where i live
im running 10psi of boost. but again like i said no dyno or tuners where i live
Here's another place about a half hour away.
Carburetor Connection
13611 NE 126th Pl # 240
Kirkland, WA 98034
(425) 820-1871
http://www.carbconn.com/index.php3
#38
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Scion Evolution
Thread Starter
Join Date: Feb 2006
Location: Marysville, WA
Posts: 330
so i did what pollup said to do and it didnt change a thing, anyways i called some places today the cheapest i have found so far is 440 for tune and dyno, so it might be a while