scooby_impreza

Hello All
So my 2000 impreza has a problem

When i put my foot down there is no turbo kick or nothing, its not like a splutter its just no power if you know what i mean??

on idle its seems rough like its bogging out but dont do this all the time.

i was told to pull the pipe of the wastegate to see if i get much more power and i did i got some pull back but not full power....

any ideas please

Neil XR

iTrader: (1)

if classic read the codes first before anything else and is the check engine light on

Tidgy

DON'T DRIVE IT HARD!!!!!!!

could well be the MAF has gone and you will kill it if you try and drive it on boost with a bust MAF. Get it to a specialist who can diagnose whats going on, never ever try to drive through a problem, how you'll kill the engine.

scooby_impreza

Thanks for the reply's!
No check engine light or stored codes. I have changed maf yesterday with no luck 😞

DutchKev

iTrader: (1)

Clean the boost solenoid see if that helps

scooby_impreza

Things I've tried.

New turbo inlet pipe..
New maf..
Cleaned boost solenoid..
Checked all pipes numerous times for leaks and found nothing..

I'm running out of ideas now.. Its not like a splutter its just no power threw all of the gear.

Thanks

DutchKev

iTrader: (1)

checked the cat? could be blocked

scooby_impreza

How do I go about checking that lol.
Just blanked off dump valve to see if it was that and still the same. But when blanked off when id changed gear I could hear a chatter noise?

Thanks

scooby_impreza

But like I said when I took pipe off actuator it pulls alot better but when all connected properly the is no power or turbo kick at all

ossett2k2

iTrader: (9)

Have you done an ECU reset? Can stay in limp mode if not reset.
Cleaned/checked Map sensor?
Plugs,leads,coil pack ?

scooby_impreza

Yes done ecu reset and forgot to add I did clean map.
Its just strange how when wastegate is unplugged it pulls alot better.... Could it be wastegate related?

Thanks for all the replies!!

Laupy

iTrader: (2)

Was the replacement MAF a genuine Subaru item? Copy ones are awful and will make you think the fault is somewhere else. I chased a fault on mine for way longer than needed due to a cheap but new MAF. Fitted a Subaru part and had an instantly happy car.

scooby_impreza

Yes its a genuine Subaru maf.

kevo10

[QUOTE=scooby_impreza;11666109]Yes done ecu reset and forgot to add I did clean map.
how did you clean the map sensor ?

scooby_impreza

Brake cleaner

kevo10

Thought the MAP sensor was a sealed unit?

TonyBurns

iTrader: (3)

Wouldnt use brake cleaner on an MY99/00 maf, just cleaning it with a cloth can kill it, shoving brake fluid on it and cleaning it will have finished the job off, you need a NEW one, not a 2nd hand one, but brand spanking NEW.

ossett2k2

iTrader: (9)

He doesn't say it's a 99/00 impreza just say 2000 so I'm guessing uk2000.
And he didn't say he cleaned the MassAirFlow(MAF) sensor with brake cleaner,he said the MassAirPressure(MAP)

scooby_impreza

I didn't clean the maf I fitted a brand new genuine Subaru one.
I cleaned the MAP with brake cleaner. The car is a year 2000. Impreza turbo 2000

kevo10

If its not a sealed unit, what was the result of cleaning? Was any contamination evident?

kevo10

Have you checked the actuator arm on the turbo?If so,is it free to move . Could also check the diaphragm in the actuator is ok