17963 - Charge Pressure: Maximum Limit Exceeded

[gointoscott]

well I know the code I got tonight was because I had my mbc set too high (running in standalone) recently just went standalone.

I have been playing with the different boost levels to find the best setting.

I guess I set it too high.

My question is after boosting too high and apperently throwing the code and going into limp mode the rest the way home (2-3 miles) it was sluggish and seamed to stay in limp mode.

Is it right to assume that it stays in limp mode until you shut the car off and restart it?

I cleared the code with vag-com and I'm assuming it will be fine now. At least hoping so, I havnt taken the car out since. I will drive it tomorrow and find out for sure.

I also turned the boost down a little so it doesnt over boost this high again.

[Jung]

jeez scotty what did you turn it up to?! haha
just turn it off and on and see how it runs.

[gointoscott]

Well...

I have the usa inmotion chip and the tuner has the car boosting to max of about 13-14 psi when it is running with n75. actually for 1st its around 11 psi 2nd seams to be about 12-13. 3rd seams to be the highest where it will boost 14-15
I dont mind the conservative boosting, I figure its easier on my turbo's but do wish it would boost to 15 and be more smooth without the mbc. so I could just run it with n75.

I was running parallel with mbc and that helped to have it boost to about 14-15 in all gears (except for 1st)

I then bought a new mbc from vast to go standalone and thats when I over boosted. dont get me wrong, I had it set to max at 15 psi, which is all it boosted too. but I was in 1st gear and I'm guessing that is why it reached the limit because its not supposed to boost that high in 1st.

So I turned it down just a little and will see how that goes.

[gointoscott]

Update.

After clearing code and driving it again, its not in limp mode and is boosting fine.

I lowered it a little, but I think I need to lower it a little more yet. I dont want to over boost again.

[Illusive90s]

FWIW...It is very unlikely for the car to make peak boost in first and second due to the lower loads on the engine. You should and will see the car meeting the max desired in third and on becuase of the increased load on the engine. People usually reffer to their boos levels as seen in third since that is generally the benchmark used with this car.

From my experience, the boost deviation limp will go away when the car is turned off, then back on. It will return once the condition has returned, ie: overboosting/underboosting.

[gointoscott]

FWIW...It is very unlikely for the car to make peak boost in first and second due to the lower loads on the engine. You should and will see the car meeting the max desired in third and on becuase of the increased load on the engine. People usually reffer to their boos levels as seen in third since that is generally the benchmark used with this car.

From my experience, the boost deviation limp will go away when the car is turned off, then back on. It will return once the condition has returned, ie: overboosting/underboosting.

I can see what you are saying. The thing is in my experience of this code and going into limp mode, it happened right after boosting to 15psi in 1st gear. when I shifted into second gear it went into limp mode and stayed there till the car shut off.

I am going to contact the company that did my tune (Inmotion USA) and see what they set their boost settings and if it varies for each gear.

Right now I'm running a mbc in standalone and I dont want it set too high at all, I felt setting it to 15psi was conservative, but I will probably lower it a little more. I am using the mbc in standalone because its much more smooth. When I used the n75 and was boosting it would fluctuate and I would see my boost gauge jump between 12-14 psi. I could also feel the car fluctuate. Hope that makes sense.

But when using the mbc its nice and smooth and boosts to 14-15 and sometimes higher and holds then slowly drops.

I think its set a little too high yet. Actually I went to turn it down after this incident and I just realized I was turning it higher. Such an idiot.

Anyway

It is good to know that when you shut it off and turnit back on it goes out of limp mode. I figured this was the case, but didnt know for sure because I also cleared the codes with vag-com so wasnt sure if that also fixed the limp mode problem.

[kingofqueenz788]

hey i have a simular problem i pulled up two codes which were 17526 - Oxygen (Lambda) Sensor Heating; B1 S2: Open Circuit
P1118 - 35-10 - - - Intermittent
17963 - Charge Pressure: Maximum Limit Exceeded
P1555 - 35-10 - - - Intermittent

im also running a awe tuning file with my ko4s the fils is for ko3s tho:-( WOULD THIS B4 Y IM PULLING this code ?

[BostonBlkS4]

hey kingofqueenz788,
Let me know if you get that first code fixed? i have the same issue, but it isn't intermittent. yet to find a solution. just posted up a thread today, but no responses yet.

[kingofqueenz788]

my boost has been fluxuating a lot i might have a boost leak but im new to this ko4 thing im not running a ko4 file :-( only a apr chip wit ko3s could this and a boost leak cause this code to come up! also the inlet pipe rite over the turbo is that a possible spot wheir it could leak from ?

[kingofqueenz788]

i am running a n75 valve in the car but the boost has not been up to my liking, it fluctuates way more psi then the ko3 turbos i hade on b4 when in stock mode i kno the car suposta run 8psi now on the ko4s its running 10 tappering down to 8 when i hit peak boost, i dont know that much about the ko4s and running them on stock and apr stage 2 file! but i kno the car does not missfire knock on wood!

[my01s4]

hey i have a simular problem i pulled up two codes which were 17526 - Oxygen (Lambda) Sensor Heating; B1 S2: Open Circuit
P1118 - 35-10 - - - Intermittent
17963 - Charge Pressure: Maximum Limit Exceeded
P1555 - 35-10 - - - Intermittent

im also running a awe tuning file with my ko4s the fils is for ko3s tho:-( WOULD THIS B4 Y IM PULLING this code ?

I was getting the same charge pressure code when i was running my k04's with k03 file and mbc. you should be fine. Now im AWE Stage 3.

Looks like your secondary o2 is bad or you didn't relocate when you did piggies.

[kingofqueenz788]

im still having this problem idk what it can be ?

[reverse.rake]

holy shit if it hasnt been fixed in 7 years then just burn the the thing already!