Miss accross the rev range

[Kiwi_Fozze]

sounds about right to me

[Pappu1]

compression test will be saturday

any other ideas in the meantime or just leave it till then...

[Kiwi_Fozze]

check plug seating? ehh..... may as well do that after compression test aye

[Pappu1]

 kwi_fozze said:

check plug seating? ehh..... may as well do that after compression test aye

second set of plugs in there so seaterd good heheh

will take the coil out and see if it fires the plugs - just so i know if any spark is happening

cant understand why the dam passenger side both are being such b!tches lol

[funkytown]

you dont have the leads on back to front

edit: aww v7 is coil on plug again eh.. no fun

[Pappu1]

 funkytown said:

you dont have the leads on back to front

edit: aww v7 is coil on plug again eh.. no fun

lol yea.. less things to muck by me

--

[WRXONP]

The only way i see ring lands breaking is when raping it not cruising it not. . . .use test light or multi meter and check signal wire for pulse. Or check the plug for spark

[Guest]

have you checked the 16 or 20 pin multi plug on the driver strut tower

Check it for engine oil, if present you have issues that no tune will fix

refer my AVCS post under ENGINE section

[Pappu1]

 Ichi Ban said:

have you checked the 16 or 20 pin multi plug on the driver strut tower

Check it for engine oil, if present you have issues that no tune will fix

refer my AVCS post under ENGINE section

yea bro thats what i was going to do - see the plugs but have not had a chance

if the avcs sensor is all oiled up - will i have this issue??

also - i may look into getting ur mod done on the avcs setup...

can i pull the sensor out without openinig up the intake manifold?

[Guest]

 pappu']

[quote name='Ichi Ban said:

have you checked the 16 or 20 pin multi plug on the driver strut tower

Check it for engine oil, if present you have issues that no tune will fix

refer my AVCS post under ENGINE section

/quote]

yea bro thats what i was going to do - see the plugs but have not had a chance

if the avcs sensor is all oiled up - will i have this issue??

also - i may look into getting ur mod done on the avcs setup...

can i pull the sensor out without openinig up the intake manifold?

Sensor s can be removed from both banks without removing manifold - thay are a tight fit tho , need skinny fingers

[Pappu1]

hahaha skinny fingers i have...NOT damit lol

:-[

will need to find a skinny fingered mate for that..

if the sensors are bunged (perhaps the passenger bank ones?)

then will it cause me such grief u reakon?

[Pappu1]

hmmm some more research and i have a different theory to try -

what if the damm avcs is blocked/restricted on one side

that wud cause it to have uneven timing compared to the other side

(refer to ici ban and his posts abt the banjo bolt filter being possibly blocked as an issue on avcs heads)

will see if i can log the differences in the avcs

[soopersubaru]

 pappu said:

hmmm some more research and i have a different theory to try -

what if the damm avcs is blocked/restricted on one side

that wud cause it to have uneven timing compared to the other side

(refer to ici ban and his posts abt the banjo bolt filter being possibly blocked as an issue on avcs heads)

will see if i can log the differences in the avcs

ichi ban could be onto it...........check for oil in your avsc plugs!..Hope its not internal damage. Compression test will reveal if it is or not. Then it must be electrical,.

[Pappu1]

Yea I'm thinking thats the path

I'm just waiting to get the compression test done to confirm no broke rings

Then next few ideas in place

Damm I cNt cross me fingers hard enough for good compression test

[Guest]

would be suprised if you have a low compression, but I also have my fingers crossed for ya

[Pappu1]

update:

compression test - ~135psi on all 4 cylinders

(been informed that is within spec and no leak as all are same ish so all good there)

logged AVCS angles

- the passenger side bank seems to have 53 degrees at idle and rises as revs rise a bit (only reved to 5500 ish rpm)

- the drivers side remains stuck at 0 no matter how the revs rise

--

outta comparizion i checked a working v7 sti and both sides avcs remain 0 at idle and rise together as revs rise

--

currently issue seems to point to avcs filter fallen in the valve and causing issue s

--

next step is to pull out the filter basket and also pull out the avcs solenoid and clean

--

will update how that goes

passenger side looks easy-ish but drivers side looks harder..ah well ...

[Guest]

as we discussed you only need to sort the passengers side for now

The 53deg IS the issue, and will be either the filter basket in the valve

or incorrect cambelt timing

[Pappu1]

 Ichi Ban said:

as we discussed you only need to sort the passengers side for now

The 53deg IS the issue, and will be either the filter basket in the valve

or incorrect cambelt timing

yay the easier side ay bro...

PS - why wud the driver side stay stuck at 0 degrees all the time tho?

normally as the revs rise the avcs degrees rise alongside...

do u think the avcs on passenger side is causing the constant 0 on the drivers side as well??

PPS. once i get this sorted im going to do a writeup with pics on a troubleshooting for v7 ppl (with credits to all thoes who have helped out)

[soopersubaru]

YAAA!! an easy cheap fix. not an engine damaged issue!

Mechanical too, Honestly I considered it to be electrical ???.

Pleased for ya!! :)

Cant go past a compression test to re assure your mind!

[Pappu1]

issue sorted !!! ;D

opened the banjo bolt for the oil feed on the left (as the logs had indicated left side advanced)

found the banjo bolt filter - had mostly disintergrated

removed filter

started car - same issue - slightly beter (50 degrees advanced not 53 lol)

opened the avcs actuater and found a tiny piece of broken filter basket plastic in the lobes and jamming it open

removed it

put all back

started car... success ;D

will do another thread of writeup on the issue for others to follow

thanks to all who have helped with their suggestions and advice

major thanks to ichiban for giving me the confidence to do the job myself and pointing out the details

and also to crazymf for the vote of confidence and showing me to parts

and to teznu for helping with the compression test

[jpar196]

Hey mate, glad you got this sorted, might check mine cause Ive just found some oil in the big connector by the driver side

is there any harm in removing the filter? Did you have any oil in your loom connector at all from this ?

thanks

[gazzy2000]

mint .. well done!! look forward to reading your step by step 'howto' doco

[Pappu1]

 jpar196 said:

Hey mate, glad you got this sorted, might check mine cause Ive just found some oil in the big connector by the driver side

is there any harm in removing the filter? Did you have any oil in your loom connector at all from this ?

thanks

yea man found oil in my loom connector as well

dam silly design by subaru

and no - removing the filter makes no issue bro

yea gazzy hehehe been thinking of doing like a symptom and diagnosis and repair type writeup

defenetly v7+ ppl will need with the silly filter in banjo bolt

[jpar196]

Sweet, will need to do that, do you know if removing the filter then will stop the oils travelling in to the ECU looms ?? not smart design for oil to allow to go to the ECU

[Pappu1]

 jpar196 said:

Sweet, will need to do that, do you know if removing the filter then will stop the oils travelling in to the ECU looms ?? not smart design for oil to allow to go to the ECU

na bro - removing the filter will stop it fallinf in the avcs actuator and causing issues

to stop oil in loom - u gotta get ur avcs cam position sensors modded

iciban on here does modded sensors

i will be getting mine done soon

can do a writeup on that too so u (and other can follow) with puting the modded sensors eh