Hi

All of a sudden my forester 2001 won’t boost past 0.6 bar and usually it boosts 1.2 bar on the tdo4 it’s been mapped months ago with the supporting mods.

Checked the engine bay for any pipes or vacuum have split but no sign of any of that. All seems fine

Car doesn’t smoke,knock or no engine light on the dash

Hmmm, any ideas???

I’ve read it could be in limp mode? Or the boost solenoid ?

Cheers lads

 

have you reset the ecu, or checked for stored error codes ?

 

That will be next as soon as finished work.

I kno you can do a reset using the two green plugs??

Or just disconnect the battery

 

As you probably know its currently running actuator pressure only.
check the actuator arm is still connected to the W/G penny valve arm.

 

So finished work, plugged the two black plugs in and it’s throw up code 23
Strange thing is driving home and was boosting how it should be at 1.2 bar. Hmmm

Might give it a clean etc, also should restart the ecu??

 

Cleaned maf sensor with electrical cleaner and reset battery
No codes now.. hopfully it doesn’t come back although if does just buy a new maf sensor

Happy days