×

La venta termina hoyObtenga un 30% de descuento en cualquier curso (excepto paquetes)

Termina en --- --- ---

Boost Issue

Discusión general sobre afinación

Publicaciones del foro

Cursos

Blog

Artículos técnicos

En esta sección, hablaremos sobre todo lo relacionado con el tuning . Noticias, productos, problemas y resultados.

= Hilos resueltos

Autor
366 Vistas

I am currently tuning my 06 sti via ecu flash. When I try to do a wot pull from low rpm I hit boost cut and get a P0244 code. On my data log boost is pretty spot on from what I can tell. Is there something I'm missing? Anyone ever come across this problem? attached is a data log.

Archivos adjuntos
  • romraiderlog_fp15_20240816_212547.csv
  • Solo los miembros Gold pueden descargar archivos adjuntos. Obtén más información sobre cómo convertirte en miembro Gold aquí.

Paul,

The most common cause of this would be hitting the boost limit set in the tune.

It generally needs increased if you're running more than stock boost level.

Have you adjusted the limit to be high enough that you aren't hitting it during normal operation?

Just be careful not to set the boost limit too high. That's only a 2.5 bar sensor, so if you set boost cut past about 21.7 psi you might as well set it to 100 psi. The ECU won't apply a boost cut if the boost reading never reaches the limit. Setting cut at 21.5 is about as far as I'd suggest going without switching to a MAP sensor that has more range.

My target boost is actually set to 22psi. Do you think that could be the issue?

Paul,

Yes if you target a boost level the ECU can never see it has achieved, because it's beyond sensor capability, the ECU is going to think you're under boost target regardless of actual boost level. That will cause the PI system to add wastegate duty up to the limits you've tuned in the closed loop boost control tables. This will generally increase boost beyond where you want it.

And then if your boost cut is above that, it won't ever be achieved so you've lost engine protection.

The stock GR STI sensor is a 3 bar in case that meets your current and future needs. Otherwise COBB has a plug and play 4 bar option, and I use some other options for higher boost levels.

Generalmente respondemos dentro de las 12 horas (a menudo antes)

¿Necesitar ayuda?

¿Necesitas ayuda para elegir un curso?

¿Tiene dificultades con el sitio web?

¿O necesita contactarnos por cualquier otro motivo?