[Forester 2003 cold start]

Yes, i didn't have any trouble code for this start problem.

IACV ventil - step motor with scrol is ok, I had clean, also I did try last year another one for winter test - the same result. So I  exclusive IACV ventil. 

 

One thing when I sudden step gas pedal for 5 seconds before It dies, then all is ok, after release pedal doesn't dies, rpm are normal. 

[Forester 2003 cold start]

• Re

GreaseMonkey:

No,all other starts this cold day are ok always.Next morning again dies after start. Strange. 

Fuel line frozen could be the reason. After few seconds runs it out as you wrote. Also I had read, that fuel pump is stoped after start for few seconds...probably for safety reasons.

But when I step gas pedal, it is runnig good. Also it doesnt explain that next start is ok.  

I was solving fuel pressure regulator, if is forzen, than maybe I have rich mixture. But regulator seems ok.

GeneralDisorder:

Manifoldd seems ok, when I look to logs.Foir sure I will try test with smoke and I will try clean injectors.I hope thats help.

Thanks for hints 

[Forester 2003 cold start]

Yes, second start is ok. If warm, start is also ok. 

Water in fuel could be, but it doesnt explain, why is first start ok. Only after start it dies. Also why it doesnt die when f.e. only -10 C.

I have fuel dumper before fuel filter, should be after filter?

[Forester 2003 cold start]

Hello,

I would like ask, when is more like -15 C, motor dies 5-10 seconds after start.

What I did:

1.tappet clearance -ok

2. IACV ventil + engine intake canal  - clear - OK

3. manifold vacuum -OK

4. fuel pressure - ok

5. air valve set to 0,39 V -ok

6. subaru free ssm logs - all looks ok, when I compare with another subaru start (senzors, temperature,ERG,...)

Have you any idea?

Thanks