AFM Trouble

[Roo]

My ECU is showing fault codes 23 and 44 (44 I'm not concerned about as I'm not using the factory solenoid)

Replaced the Air Flow Meter with a second hand unit from a member. left the battery disconnected for ~24hours and the code was still there. Plugged the green and black plugs in, still there.

Ran a multi-meter on it, it's getting 12V and the output at idle was reading 0.8V, seemed to increase smoothly with revs, gave it a blast (hard to judge revs under the bonnet) and it went up to 2V, didn't jump around or do anything out of the ordinary.

My first Subaru (ex Nissan owner) and first issue with an AFM I've had to deal with, help from this point on would be helpful.

Only other thing I can come up with would be a continuity check along the output wire, which I dislike doing

[Roo]

bump. No ideas?

[Jambun]

plug in the green and black connectors

and drive more than 11kmph

then turn off engine and take the plugs off.

Resets ECU fo sure.

[Roo]

 Jambun said:

plug in the green and black connectors

and drive more than 11kmph

then turn off engine and take the plugs off.

Resets ECU fo sure.

The driving part I didn't do, cheers will have give that a go when it comes back from the shop

[Pappu1]

how much boost u running

2v at full thrash seems a bit low buddy..

could be running lean cos of that

yea a continuty test just to see if u shorting somewhere...

[Roo]

 SP00N said:

how much boost u running

2v at full thrash seems a bit low buddy..

could be running lean cos of that

yea a continuty test just to see if u shorting somewhere...

Bought it on 8psi, and it went good. Ran it on 18 for a while went brilliant then put it down to 15 and then I noticed it didn't feel right and did a code check which gave me the codes I mentioned in first post.

Still haven't got it back so I can't try anything yet, hopefully tomorrow

[Roo]

 Jambun said:

plug in the green and black connectors

and drive more than 11kmph

then turn off engine and take the plugs off.

Resets ECU fo sure.

Did this, cruised at 60 in 4th gear.

CEL is giving me the all clear now (4 long flashes) and it runs very well.

Thanks everybody for the input on this