Kevin/Upsolute Stage II Impressions
#16
Ryan and I had two semi-clean runs, both of which were pretty long... 1st run, we jumped at about the same time, and I pulled slightly from 3rd through 4th, ending up a few car-lengths ahead as Ryan missed 3rd to 4th... this was with 1.1BAR showing on the boost gauge. Then, I had the ABS/PSM failure light come on, so I re-started the car, and the code went away. On the 2nd Run though, I followed his hit, and we were pretty even though the Viper pulled away ever so slightly. I wonder if the car is still trying to fine-tune itself, as this was the 1st time I had run to such high speeds with the new turbos and ECU. Perhaps the ABS/PSM failure had some effect? Previously, I had only used the lower gears to run through the higher RPMs.
We then stopped by a friend's house, and I think I made a mistake by adjusting the wastegate a 2nd turn... thus triggering what most likely is the overboost code, as now, it'll only boost .8 BAR.
In hind sight, I should have spent more time at the "one-plus-turn" wastegate setting for the ECU to learn before going to "two-plus-turn". Damn... no biggy, need to reset the error code and do some data-logging next. What's the quickest way to reset the overboost code? BTW, the ABS/PSM light came on again on the way home... what the heck is that? Time to do some research...
We then stopped by a friend's house, and I think I made a mistake by adjusting the wastegate a 2nd turn... thus triggering what most likely is the overboost code, as now, it'll only boost .8 BAR.
In hind sight, I should have spent more time at the "one-plus-turn" wastegate setting for the ECU to learn before going to "two-plus-turn". Damn... no biggy, need to reset the error code and do some data-logging next. What's the quickest way to reset the overboost code? BTW, the ABS/PSM light came on again on the way home... what the heck is that? Time to do some research...
#20
Alright, here's the deal.
I disconnected the battery for ~20 minutes, reconnected it, then turn ign to "on" position with door open to reset TB.
When I started the car, there were no error codes on the cluster.
I went for a drive, and the power felt very strong again. Then, I did a pull in 4th gear from ~3500RPM to ~6k RPM, and somewhere before 6kRPM, the ABS/PSM fail light came on again, and on the subquent runs, the boost level got lower and lower.
From searching the forum, it's hopefully a failing MAF. I will replicate the error on the way to the dealership tomorrow or Thursday to have them check it out.
I disconnected the battery for ~20 minutes, reconnected it, then turn ign to "on" position with door open to reset TB.
When I started the car, there were no error codes on the cluster.
I went for a drive, and the power felt very strong again. Then, I did a pull in 4th gear from ~3500RPM to ~6k RPM, and somewhere before 6kRPM, the ABS/PSM fail light came on again, and on the subquent runs, the boost level got lower and lower.
From searching the forum, it's hopefully a failing MAF. I will replicate the error on the way to the dealership tomorrow or Thursday to have them check it out.
#23
Stephen, I missed 3rd to 4th on the first run. In anycase, my honest opinion is that it appeared to pull a bit more in 3rd, because my 3rd is so tall. Whenever we line up, I'd have to be in 2nd when you're in third, and you can see the viper jump 1car and maintain that distance. I am not sure If I really see the difference pre stageII turbos, or post StageII. I think your turbos are setup to handle more power, but perhaps with a more agressive map. THen again, you only have 150 miles on the ecu. Drive it for another 500, and lets see. If you want we can compare it to the bone stock gt2. You also have the fabspeed loud on now as well breathing more air, so datalog it.
Ryan
Ryan
#24
Originally posted by StephenTi
Alright, here's the deal.
I disconnected the battery for ~20 minutes, reconnected it, then turn ign to "on" position with door open to reset TB.
When I started the car, there were no error codes on the cluster.
I went for a drive, and the power felt very strong again. Then, I did a pull in 4th gear from ~3500RPM to ~6k RPM, and somewhere before 6kRPM, the ABS/PSM fail light came on again, and on the subquent runs, the boost level got lower and lower.
From searching the forum, it's hopefully a failing MAF. I will replicate the error on the way to the dealership tomorrow or Thursday to have them check it out.
Alright, here's the deal.
I disconnected the battery for ~20 minutes, reconnected it, then turn ign to "on" position with door open to reset TB.
When I started the car, there were no error codes on the cluster.
I went for a drive, and the power felt very strong again. Then, I did a pull in 4th gear from ~3500RPM to ~6k RPM, and somewhere before 6kRPM, the ABS/PSM fail light came on again, and on the subquent runs, the boost level got lower and lower.
From searching the forum, it's hopefully a failing MAF. I will replicate the error on the way to the dealership tomorrow or Thursday to have them check it out.
Use your datalog to read and reset the code. once you have it connected, you should be able to see an option to read error codes. If you went beyond 1.3 bar, you'll see "overboost" You can then clear whatever code you have.
You dont need to reset the ecu, etc. That's the great thing about that program. Even if there is no error code, the datalogger can read codes, etc.
Your MAF is probably shot....same problem that I had and porsche gave me a new one under warranty.
Datalog your setup and send back to rene for a fine tune.....you must do that...just use my current setup as a baseline and fine tune from there (as my turbos are not ported/ceramic coated, etc...I just have the basic plain jane stageII turbos).
#25
Originally posted by twinvipers
The computer at the Porsche dealer showed no codes. I'll call Rene tomorrow.
The computer at the Porsche dealer showed no codes. I'll call Rene tomorrow.
Fyi.... when I had my psm/abs light and simply turned off/restarted the car (clearing the code/lights), even with the PS2, the service tech couldnt pinpoint what happened. I had to drive the car, trigger the code and bring it to the dealership with the lights on.
The datalogging tool showed 02 sensor error codes when we took out your car. You must be able to connect and stay connected to the datalogging tool to see the codes/clear them/datalog.
#27
Originally posted by PorschePhD
How could they not tell? All you have to do is datalog and screen the MAF. Watch the voltage and you will see if that is the issue.
How could they not tell? All you have to do is datalog and screen the MAF. Watch the voltage and you will see if that is the issue.
I know the PS2 should read everything, but for some reason, it didnt detect the problem until I tripped the lights again?
#28
Originally posted by ShankGT2
Stephen, I missed 3rd to 4th on the first run. In anycase, my honest opinion is that it appeared to pull a bit more in 3rd, because my 3rd is so tall. Whenever we line up, I'd have to be in 2nd when you're in third, and you can see the viper jump 1car and maintain that distance. I am not sure If I really see the difference pre stageII turbos, or post StageII. I think your turbos are setup to handle more power, but perhaps with a more agressive map. THen again, you only have 150 miles on the ecu. Drive it for another 500, and lets see. If you want we can compare it to the bone stock gt2. You also have the fabspeed loud on now as well breathing more air, so datalog it.
Ryan
Stephen, I missed 3rd to 4th on the first run. In anycase, my honest opinion is that it appeared to pull a bit more in 3rd, because my 3rd is so tall. Whenever we line up, I'd have to be in 2nd when you're in third, and you can see the viper jump 1car and maintain that distance. I am not sure If I really see the difference pre stageII turbos, or post StageII. I think your turbos are setup to handle more power, but perhaps with a more agressive map. THen again, you only have 150 miles on the ecu. Drive it for another 500, and lets see. If you want we can compare it to the bone stock gt2. You also have the fabspeed loud on now as well breathing more air, so datalog it.
Ryan
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