EPC light

[Neb]

So I was out cruising yesterday when all of a sudden if felt like there was no throttle response (like the gas was cut off) and the EPC light came on. I pulled over, waited a min and then started it back up and it worked fine. Happened about 10 mins later, same thing. Started it back up and was good after that. It only happened when the cruise control was on, going up a hill. I'm getting it scanned tomorrow but I thought someone might have had the same issues before.

tia

[blackedoutt]

I have it too, after getting my giac chip and putting a heavier spring in the DV to hold the boost. Im interested in what codes it throws as well.

[Neb]

i should make mention that the light turned off after i re-started the car both times so it's not always on..

[blackedoutt]

yes same instance, drive by wire pedal does nothing the car just idles, then i turn it off, start it up, the light goes off, and it drives fine until it happens again. the light is only on for the time between when the pedal cuts out and i restart the engine.

[JettaRedII]

The EPC light indicates a malfunction NOT related to emissions, such as a faulty throttlebody. The notorious CEL occurs when there is an emissions problem, such as misfires. The codes should tell you what's wrong.

[maxspeed]

its usually throws a maximum torque limit exceeded code when i trip the epc light

[blackedoutt]

"max torque limit" as in the cars literal torque output? or something else. Mine usually gets tripped during what feels like a boost spike. I just met a kid here at school that has vag com and offered to scan it for me this weekend so I'll see what mine throws too.

[bmw4brkfast]

phil, its cause your cars slow. haha

[blackedoutt]

Or because I have to spin all four tires and dont rely on this "veeteck" you speak of haha. Lets run em this weekend cause either way its funny, you either beat a 180tt ouu, or one beat you. Buy an audi too, or you don't belong on these.

[bmw4brkfast]

i was into audizine before you ever heard of it.

kinda like that catchy t-shirt

[bmw4brkfast]

just wanted to rub it in...ouuuu

[blackedoutt]

sorry, I'll quit audizine cause you had it first.

Back to the EPC light?

thanks for the new background

[bmw4brkfast]

i figured you'd like that.

[bmw4brkfast]

p.s. just get on awe and buy the vag cord. i'll run the software through my lap top and this weekend we'll get it done, not too expensive.

[blackedoutt]

My money so you can have vag haha, actually the ross-tech really isnt that expensive is it? I should buy an old lap top just for it too. Ebay, here I come.

[bmw4brkfast]

what do i need with vag. well in spring i may want it for r32. :-)

[Neb]

here's the codes:

16684 P0300 Random
multiple cylinder:misfire detected

16687 P0303 Cylinder 3: misfire detected

17521 P1113 Bank 1 - sensor 1: internal resistance too large

17743 P1335 Engine torque monitoring 2: valve above upper control limit

i was told changing out the plugs might get rid of the misfires, hopefully i can do that next week and then go from there..

[blackedoutt]

Let me know how that goes. I'm not sure if I can scan mine this weekend anymore, I might just buy an ebay vag cable and use ross-techs freeware version.

[Neb]

let me know what you come up with as well once you get it scanned (autozone does it for free too btw)

[blackedoutt]

oh thats right I forgot they do that. They scan they just don't clear em for you incase you are about to get it inspected haha. I still wanna get vag-com though.

[maxspeed]

p1335 is whats causing your epc light, get a mbc to control your boost spikes

[Neb]

where's a good place to get one and is there a good brand to get?

[blackedoutt]

any auto parts store or website. they are cheap and easy. the quick n dirty way of controlling boost. ill try it

[blackedoutt]

vag says torque limit as in boost spike.

ever thought about doing a n249 bypass or different n75 version such as n75 j?
pros, cons?

[sambrody44]

has any one found a way to fix this? had the same exact problem on my dads TT 225 when it was GIAC flashed... we replaced the throttle body like AWE suggested and it still didn't work. so we had them flash it back to stock. So anyone figure it out?

[blackedoutt]

I decided on doing the n249 bypass when i go home in early april to get my car ready for carlisle. It seems to work for alot of people so ill keep you posted.

[ncttrnl]

I'd look at that O2 sensor and your plugs before you start changing too much.

You've got misfires and an O2 sensor that the ecu says isn't working. Your fueling might be jacked because of that.

[sambrody44]

After many conversations between my mechanic and AWE who did the flash on my dad's TT, they say they have come up with a solution. Apparently some rubber hose was collapsing (I'm guessing TIP) under the higher boost and they are now sending with a reinforced version of the hose. I'll update you guys tomorrow and let you know for sure what the hose is.

[blackedoutt]

Yes definitely let us know what hose it is before I go hacking up my vacuum lines. Is this new reinforced hose free of charge from AWE by the way? Because my tune is from them too.

[sambrody44]

I'll be sure to update tomorrow after i talk to my mechanic more in depth. I'm not sure if the upgrade is free, that would be something you would have to contact AWE for. I wouldn't know since we decided to move on to APR do to some of the customer service we received from AWE.

[sambrody44]

I was right, it's the TIP. I don't think AWE will give you a free upgrade, we are still actually having problems with them.

[blackedoutt]

bshspeedshop.com has some evoms TIPs for 150 shipped, ill look into that. but thats also because you have a 225, the 180 has a solid TIP, so I don't think thats my problem.

[leonx]

here's the codes:

16684 P0300 Random
multiple cylinder:misfire detected

16687 P0303 Cylinder 3: misfire detected

17521 P1113 Bank 1 - sensor 1: internal resistance too large

17743 P1335 Engine torque monitoring 2: valve above upper control limit

i was told changing out the plugs might get rid of the misfires, hopefully i can do that next week and then go from there..

Hello, I write from italy, I have the same problem on my car.
Can you tell me if you have resolve the error code 17743 P1335 Engine torque monitoring 2: valve above upper control limit?

Thanks

[blackedoutt]

get the boost machine from modshack (or build one)

[leonx]

get the boost machine from modshack (or build one)

I don't understand...my car ecu is remap, whith the original ecu there are no problems