That would be B.S. if so. Or possibly you installed it wrong or forgot to plug something back in?

 

he said he had an elctronic boost controler

 

So do you think the EBC will throw different or more codes then the MBC. I need help plzzzz. And yes i do have an EBC

 

People are saying that the MBC is throwing the same problem.

 

i threw a code when i had my mbc hooked up. i took it off cus i didnt want to deal with the light.

 

well i lowered the boost down to about 20psi until i get the ECU flash. Well see how long the car holds.

 

can you elaborate on this please?

 

I have already done a write up on this. You need to pull the code to ensure its the same thing, but you are most likely just getting more airflow then the ECU expects at your throttle position. P1235 is the code, and you will know when you triggered it because the idle sticks at 2k. You dont need to pull the battery, you can just turn the car off, and back on, which will resolve the issue. The light will self clear once it passes the checks for the failure several times. Usually takes a few re-starts. Alternatively, you can stop by any Auto Zone, and they will give you a device you can clear the code with for free.

Regardless, you need to get the code, because without that, this is pointless.

 

Yes that is excatualy the code and what is happening to my car. I have just been unpluging the battery because if i turn off the car and turn it back on its still there. And chances are by the time the car checks its self a few time to turn the code off i will have triggered it again. I am hoping runing lower boost will help. If i set it to 22 - 23psi for some reason 4th and 5th gear are peaking at like 25psi which caused me to go into limp mode which SUCKKKKKKKK

 

It's not really a matter of your peak boost, the problem is where you build boost. The reason you are getting this in 4th/5th gear is because the MBC is most likely building boost levels much quicker then the factory ECU would build boost for those gears. As such, you end up flowing a lot more air then you do with the factory ECU. The ECU compares the amount of air flow, via MAF, and compares the results to a table based on your throttle position. If they differ by a certain percentage, or more, for a specific time period, you throw the code, and go into MAF safe mode, since the car thinks the MAF sensor is broke.

You dont have to pull the battery, you can just restart your car to clear the safe condition. The light will self clear over time, usually less then a day. However, if you keep throwing it, you will just have the car go into safe mode again, and the light will forever be on. I have yet to get this light during very spirited driving, it seems to only come on during partial throttle routines in 5th gear for me. Especially when I am going up steep hills.

The reality is we need to get factory ECU boost control. I think when you couple the electronic throttle body, with a MBC, you end up creating load values that the car doesnt like. Its bad enough that the TB tends to go wide open at just half throttle sometimes.

The reason you are spiking is because of the higher load on the car in 4th and 5th gear. You should try to set your boost in 3rd, then do a 4th gear mini pull, at medium RPM's, to see where it sits. Remember, in 1st-3rd, you are moving through load cells rather quickly, but in 4th and 5th, you will dwell in areas that you normally blow by.

 

Finally some one who knows what they are talking about. Thanks for all the great info.

I tried before setting my boost to 22psi in 3rd but in 5th gear i was still hitting about 24.4 - 24.8. I was driving down the road maybe about 70mph and i was just messing with the throttel and it peaked maybe a couple of time from me giving it about 65% - 75% throttel which cause me to go in limp mode.

Do you think it is a bad idea to lower the boost??????

 

can you post a link to yourwrite up PDX....i searched and couldnt find it