Hi gurus,

Currenly, I have raised the Boost delay to 1638375. Does that effectively remove the P1235 error? Or do I have to edit the Airflow check and torque limiter as well?

 

You need to map the BDEL tables as well.

 

It will remove the fuel cut, but not the limp mode.

 

boost cut delay timer?

 

Boost Cut Delay Timer
The number in this map (miliseconds) is the amount of time it takes before your boost cut kicks in.

Example: Lets say your boost limit (numbers are in load) is set to 250 load at 4000 RPM and you increased the boost on your car so the load jumped to 260. The stock boost cut delay is set to 1 second (1000 ms) so it will allow your car to go beyond it's load limit for 1 second. If your load is beyond it's limit for more than 1 second, the boost cut will kick in. If you change it to 5000ms, it will allow your load to go beyond it's limit for 5 seconds.

But like TTP said, this will only prevent the boost cut and will not prevent the CEL.

 

What's BDEL???

 

Boost Desired Engine Load
Aka Boost Target Engine Load in ECUFlash

 

I only have Boost Target Engine Load #1A, #1B and #2... is that the table?

If yes, does that mean that I need to increase the Throttle %?

 

Yes those maps are the same as BDEL.

The parameters you see in those maps are load values, the scale is in RPM x Thottle %.
Boost Control Load Offset + BDEL = Target Load (the load you want to hit)
Adjust the Boost Control Load Offset and the BDEL to match the engine load you desire.

 

So that means that I can safely multiply everything by 20% and hopefully I wun hit a Limp mode on part throttle...

 

I forgot to mention that I have EBC installed so does that makes things simpler?

 

By what percent you increase is up to you hit & miss my friend, this is how we all learn.

I would also recommend adjusting 2 more sets of maps, Airflow Check #1-3 & Torque Limit #1-3. You can increase these maps up to about 30% depending on the throttle voltage & RPM. And again, the amount you increase is up to you

gunzo has released a base map for USDMs on 91 Oct, that map may be a good starting point for your tune.

 

If you have a EBC installed and are not using the stock ecu to control boost at all, just raise the Boost Offset from 80 (stock) to something large like 300 or so. That way you don't even have to touch target engine load maps.

 

this was exactly my concern regarding the EBC

what i did was to raise the "boost limit" to the max, so far no trouble code at part throttle or any code related

 

Thanks for all the input.. shall do that and test again...