[fotiki]

I followed the instructions closely, put the car in sleep mode etc. I do not think i have a defective unit cause the car has very good power and torque with it.
The code it throws all the time is P1221:Pedal Position Sensor 2 Range/Performance Problem.
I think it has something to do with the car being a steptronic

[Kitz]

so that code appeared after you installed SSTT?

[fotiki]

Originally Posted by Kitz

so that code appeared after you installed SSTT?

15 minutes after the installation of SSTT i got a CEL

[2e9x's]

Originally Posted by fotiki

15 minutes after the installation of SSTT i got a CEL

Now please answer the rest of my questions...what gas are you using? Are there any other mods to your car? Have you bypassed the boost solenoids? Under what conditions do you get the limp mode (like engine temp, RPM and throttle position)?

Try this...disconnect your battery for an hour. Then reconnect and go for a drive. Let me know if that changes anything.

[slant83]

Love it especially with the golf tee mod. I love the vroom vroom

[gonzo]

Originally Posted by slant83

Love it especially with the golf tee mod. I love the vroom vroom

Get you a BMC filter.

...Porsche C4S
...Mercedes CLK55

[fotiki]

Originally Posted by White05X3

Now please answer the rest of my questions...what gas are you using? Are there any other mods to your car? Have you bypassed the boost solenoids? Under what conditions do you get the limp mode (like engine temp, RPM and throttle position)?

Try this...disconnect your battery for an hour. Then reconnect and go for a drive. Let me know if that changes anything.

I use shell 100 oct Roz (for u guys in the US its 96 oct Ron)
Other mod is the K&N air filter which is installed recently.I have not bypassed the boost solenoids should i give it a try? The limp mode usually happens during warmups and at low RPMs.
Do you think its a software glitch i'll disconnect the battery as soos as i find the time.

[5soko]

i have a steptronic 335i with K&N and SSTT for almost 10k miles. i probably took it out 3 times for dealer visits and never had a single issue.

take the SSTT out, drive around stock for a day. try to see if u can make the limp mode re-occur.
when u re-install the SSTT, disconnect the battery wait 20-30 min, then install the SSTT. after re-connect the battery. give that a try.

good luck

[houstonT]

I purchased a driftbox (GPS based device) a while back to time my Supra 60-130.......after reading your post, I remembered that I should stick it in the 335i and see what she does 0-60, 1/4 mile and 60-130. Once I do this, I will post data/results.
Peter

Originally Posted by OverDrive

any one know any 0-62mph and 1/4 mile times with the SSTT?

[asdflkijd]

From what I've read, isnt the 1/4 right under 13's? so... like around 12.8x ish?

[2e9x's]

Originally Posted by fotiki

I use shell 100 oct Roz (for u guys in the US its 96 oct Ron)
Other mod is the K&N air filter which is installed recently.I have not bypassed the boost solenoids should i give it a try? The limp mode usually happens during warmups and at low RPMs.
Do you think its a software glitch i'll disconnect the battery as soos as i find the time.

At that point in the cycle the SSTT should not be doing anything. It sounds like your car has some other issue that the dealer has not identified. Your error has to do with the e-throttle, and the SSTT does not interfere or mess with that signal. That means that something else is going on either with your install of the SSTT or with the car itself.

According to this thread http://www.e90post.com/forums/showth...ighlight=P1221

the error code P1221 is a DSC failure. I am wondering if your car's computer is the same as a US ECU. Can anybody chime in on that? What is your production date?

Do NOT bypass the boost solenoids. That is a mistake with the SSTT!!!

I would definitely try disconnecting the battery for a while. It won't hurt anything and may help.

[fotiki]

Originally Posted by White05X3

At that point in the cycle the SSTT should not be doing anything. It sounds like your car has some other issue that the dealer has not identified. Your error has to do with the e-throttle, and the SSTT does not interfere or mess with that signal. That means that something else is going on either with your install of the SSTT or with the car itself.

According to this thread http://www.e90post.com/forums/showth...ighlight=P1221

the error code P1221 is a DSC failure. I am wondering if your car's computer is the same as a US ECU. Can anybody chime in on that? What is your production date?

Do NOT bypass the boost solenoids. That is a mistake with the SSTT!!!

I would definitely try disconnecting the battery for a while. It won't hurt anything and may help.

Sorry my mistake, its not 1221 it is
P1121 : Throttle Position (TP) Sensor Circuit Intermittent High Voltage
My production date is 8/07
Thanks for the recommendations

[SCCAForums.com]

I love the SSTT... best (and easiest) $550 or so bucks I ever Spent!

ok.. .maybe the K&N was easier!

Dave

[BuLoOoSki]

Originally Posted by OverDrive

any one know any 0-62mph and 1/4 mile times with the SSTT?

I had a 13.01 but can't remember the MPH right now and I have an AT tranny, I think car could have done much better but the car was just spinning a lot even without building boost with those RFTs

[2e9x's]

Originally Posted by fotiki

Sorry my mistake, its not 1221 it is
P1121 : Throttle Position (TP) Sensor Circuit Intermittent High Voltage
My production date is 8/07
Thanks for the recommendations

I am really sorry for the challenges you have been facing! That is always frustrating.

However I can't find a plausible explanation for your situation that is related to the SSTT. From what I can tell the SSTT only modifies 2 signals: IAT (Intake Air Temperature) and TMAP (manifold pressure). It is inconceivable to me that changing those two signals, all within stock parameters by the way, would cause an error in voltage with the throttle position sensor. It sounds to me like you have a problem with your car that is not related to the SSTT.

So now it is time to search elsewhere for the solution. When you install the SSTT, do you remove/disconnect anything else (either on purpose or by accident)? Is the K&N filter the drop-in panel or did you remove the stock air box? When you take the car into the dealership, do you tell them about the SSTT? How do they explain the error code?

I also recommend at some point checking the part number on your ECU. Apparently in Europe there is an ECU with a different part number than the US versions (according to realoem.com). That may be the issue! You really should double check that!!

[tek818]

Originally Posted by White05X3

I am very happy with my SSTT...

Rixstr had limp modes because his SSTT was a development unit.

AB Tek - Do you have any other mods? Did you bypass the boost solenoids?

I think in all there have been very few reports of trouble with the SSTT.

No, my car was completely stock at the time except for the SSTT. No solenoid bypass either... It occurred after doing a few back-to-back runs with Driver72 in his PROcede v1.2 sedan. There was a video made of it...

[Biostockman]

Thanks Jon, I received my unit this afternoon and have already installed it... Broke the damn clip with a friggin' dime though.

I followed the directions which are posted on DIY and it helped a ton! I f*cked up my arms trying to get in there and broke the clip but besides that a fairly easy first install..

Took it for a test ride a couple of hours ago and low and behold... a friggin warning light came on!! ARRRGGHHH I almost crapped myself until I realized it was only a low washer fluid light :P

I'm impressed... No, I'm beyond impressed!!! SSTT is TOTALLY the way to go when you have a leased vehicle. Coupled with a BMC filter I am a happy 335i owner right now!

Split Second / Eurobahn, outstanding work!!!

[5soko]

Originally Posted by Biostockman

Thanks Jon, I received my unit this afternoon and have already installed it... Broke the damn clip with a friggin' dime though.

I followed the directions which are posted on DIY and it helped a ton! I f*cked up my arms trying to get in there and broke the clip but besides that a fairly easy first install..

Took it for a test ride a couple of hours ago and low and behold... a friggin warning light came on!! ARRRGGHHH I almost crapped myself until I realized it was only a low washer fluid light :P

I'm impressed... No, I'm beyond impressed!!! SSTT is TOTALLY the way to go when you have a leased vehicle. Coupled with a BMC filter I am a happy 335i owner right now!

Split Second / Eurobahn, outstanding work!!!

hahaha congrats man enjoy.

[jon@themshop]

Biostockman - Sorry to hear that the clip broke but glad you're enjoying your SSTT.

My advice to everyone that plans on using the dime to not force it up too much. You just want to wedge it in enough so that the clip is unlock then pull down on the harness to disconnect it from the TMAP sensor.

[JacobT]

Just installed mine from Jon today. The guitar pick came with the unit is not really helpful, just use a small mini screw driver to push the clip up a little and un-plug the socket. It took me like 2 minutes to do the installation.

I took it out for a spin but could not really tell the 50 HP gain immediately. So my question is how long does it take for the ECU to adapt to the new SSTT?

[5soko]

takes about a day or two... go run a stock 335i and see him go to tears

[Biostockman]

Actually, I noticed it today. My car had been cold since Sunday so I followed the direction of just opening the hood and locking the doors. Waited for the slow ass UPS guy for about 4 hours, installed it, left my driveway an hour later. I noticed it as soon as I got onto the highway. Perhaps the ECU became better acquainted with it since it the cold for so long?