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 Oil Catch Tank

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PostSubject: Oil Catch Tank   Fri Aug 20, 2010 7:20 pm

I had installed an OCT on my Lancer quite some time back.

Today, while doing a specific crucial de-kitting, the de-kitter/tuner/modder (a bloke very experienced with modding and turbo projects) had ran a diagnostic check (after de-kitting a mod that messes around with very crucial engine parameters) and then commented that my OCT installation is not quite right given that the Lancer has a MAF sensor. He said that my OCT installation would result in "funny car behaviour" and specificly would mean fluctuating idle RPMs (depending on specific engine siuations and conditions).

He gave me instructions on how to rectify my OCT installation.

The point of this topic is to ask for any bros here that have installed an OCT to post pictures of their OCT installation. I will then reveal what the tuner/modder suggested should be the correct OCT installation for our Lancer.

Sorry, not that I'm being cryptic but I just don;t wanna waste time explaining things (which is quite difficult to do, using words to describe things in a forum) if/when you guys with OCTs have already done it the way this modder/tuner said should be the way an OCT should be installed in our Lancer.
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Fuza
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PostSubject: Re: Oil Catch Tank   Fri Aug 20, 2010 8:21 pm

Did u mean by vaccum systems?
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gelygeleman
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PostSubject: Re: Oil Catch Tank   Fri Aug 20, 2010 9:12 pm

my OCT at right hand side in eng bay...
tis was old pic so cant see clearly the pipe connection larr. difficult 2 coment i think.
anyway blue silicone hose pipe was connect from engine head to OCT. then the outlet blue hose from OCT just there not connect to anything.
this outlet hose from OCT originally connect back to air intake system but i take out. i just put stoper (black color if u can see) on air intake inlet.
my idea was just to avoid hot air or dirty oil from OCT coming back in air inlet system....

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Elan
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PostSubject: Re: Oil Catch Tank   Sat Aug 21, 2010 12:39 am

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Elan
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PostSubject: Re: Oil Catch Tank   Sat Aug 21, 2010 12:41 am

my set up, 1 point connected to head cover and another hose is just hanging to bottom.
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PostSubject: Re: Oil Catch Tank   Sat Aug 21, 2010 9:27 am

OK, both Elan's and GG's setup is same as mine i.e. one hose (outlet hose) is hanging loose/free and not connected to anything.

My Unichip tuner said this free outlet hose (acts as vacuum, as correctly suspected by Fuza... if you start your car and put your finger at this hose you can feel small suction) should connect back to the intake just after the MAF.

He said that if this is not done then the MAF sensor will have incorrect reading. Having that hose free is fine for cars w/o MAF sensor.

I am going to try this. I am not worried about dirty oil coz this outlet hose is very clean, haha Smile
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Fuza
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PostSubject: Re: Oil Catch Tank   Sat Aug 21, 2010 1:24 pm

Im done connecting the hose . Activate the vacuum systems. Wanna see if there any differEnt.
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gelygeleman
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PostSubject: Re: Oil Catch Tank   Sat Aug 21, 2010 3:11 pm

any effect for MAF sensor incorrect reading? ie engine shut down when stop at traffic light?
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PostSubject: Re: Oil Catch Tank   Sat Aug 21, 2010 6:45 pm

gelygeleman wrote:
any effect for MAF sensor incorrect reading? ie engine shut down when stop at traffic light?
No la, engine prolly won't shut down... I mean, we have had this set-up for a while ma, no shut down, right? Smile Just that there are irregularities like when idling the RPM can sometimes fluctuate slightly.

Also, if the MAF sensor is getting incorrect readings then mileage and performance may suffer. Suffer by how much I don't know la but I don't think it'll be much.

But if my Unichip tuner (who has some experience with our Lancer) tells me my setup is wrong and told me how to correct it, then I follow his advice lo.

BTW, there is a vacuum hose to the left of the engine (when looking at engine from the front of car). You need to remove engine cover to see it. There should be only one hose going into the left of the engine. Now, this hose don't play play becoz if bocor or has a small tear (result in leaking) then engine can switch off at any time. This happened to me before due to having to change the hose after installing the Works Air Charger.
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gelygeleman
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PostSubject: Re: Oil Catch Tank   Sat Aug 21, 2010 7:01 pm

oh ok. good info.
actually i hv 3 times xperience engine shutdown when i stop at trffic light. rmp fluctuate then engine suddenly shut down. its happen to elan oso.
since my setup & elan same, i just wonder if the reason was MAF incorrect reading.
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PostSubject: Re: Oil Catch Tank   Sat Aug 21, 2010 8:58 pm

gelygeleman wrote:
oh ok. good info.
actually i hv 3 times xperience engine shutdown when i stop at trffic light. rmp fluctuate then engine suddenly shut down. its happen to elan oso.
since my setup & elan same, i just wonder if the reason was MAF incorrect reading.
Have you checked the MAF sensor to see if it is dirty or oily? Once in a while I check it (and I always check it after driving for a while after washing/re-oiling my K&N drop-in, to see if I put too much oil on the filter).

For yours and Elan's case, it could be anything (since you two mod like hell, haha Smile ). Check your spark plugs, also check that vacuum hose on the left side of the engine I mentioned in my post above (vacuum leak definitely can cause RPM to fluctuate and may even cause engine shut down).
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Elan
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PostSubject: Re: Oil Catch Tank   Sun Aug 22, 2010 3:50 pm

Rev, i already changed denso spark plug, vacum hoses are ok, changed intake set up, changed exhaust set up, i suspect that my engine stall case is because of AFR on idling is too low, 13.2 if not mistaken. need to go back to C.H.Motor to re-adjust it again for idling only.
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gelygeleman
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PostSubject: Re: Oil Catch Tank   Sun Aug 22, 2010 8:27 pm

ya, same me.. tuner adjusted AFR to 13.2 for idling compare to stock around 14.
my spark plug was champion iridium, vacuum hoses also in good condition.
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PostSubject: Re: Oil Catch Tank   Sun Aug 22, 2010 10:41 pm

Yeah, try to check the idling AFR. If it's not that, then try checking the ignition and starter. These two if got problem can cause problems when idling.

BTW, when the car shut down when idling, is it in D, P or N?
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donyong
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PostSubject: Re: Oil Catch Tank   Sun Aug 22, 2010 11:02 pm

I have solved the idling already, after cleaning the intake manifold. Btw, apart from the breather hose, there is the PCV and also the fuel vapour valve that dirties the TB/Intake manifold.
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strike961
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PostSubject: Re: Oil Catch Tank   Mon Aug 23, 2010 12:19 am

Elan/GG, is there any reason why your tuner adjusted AFR to 13.2 during idle? Care to share what's your AFR when WOT?

Rev, how bout your AFR when idling?

Someone told me the best AFR for lancer during idling is 14.7 His AFR when he WOT is 13.0

And Bros, does your O2 sensor connect to Unichip?
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Elan
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PostSubject: Re: Oil Catch Tank   Mon Aug 23, 2010 2:32 am

O2 sensor nvr tapped to unichip. Rev, engine stalls during at D mode.
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PostSubject: Re: Oil Catch Tank   Mon Aug 23, 2010 7:51 am

Strike, I dunno what is my idling AFR Embarassed
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PostSubject: Re: Oil Catch Tank   Mon Aug 23, 2010 10:38 am

The O2 sensor is untouched? I.e. still back to ECU?
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PostSubject: Re: Oil Catch Tank   Mon Aug 23, 2010 10:43 am

strike961 wrote:
The O2 sensor is untouched? I.e. still back to ECU?
Strike, Unichip's only connections are to the ECU of whatever car it is installed in, whether it be a Lancer or Subaru or etc. All car sensors will feed data to a car's ECU; Unichip modifies data parameters going into ECU. For Unichip installation, about 10 ECU wires are either cut+soldered or tapped.
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strike961
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PostSubject: Re: Oil Catch Tank   Mon Aug 23, 2010 11:45 am

hehe sorry ayam noobies here Smile

Rev, if that's the case, in the preset AFR of say 12.8 during WOT, will the O2 sensor picks it up as faulty (deranged from stock AFR) and sends the information to ECU. Since O2 input is not tapped into Unichip, will the stock ECU then self correct by altering the injector running duty cycle, to a faster/slower rate, to get back the desired AFR (stock)? Could this happen after awhile...say few hours/days/months after unichip installation?

Anyone here install a AFR monitoring device? If yes, do you still get the "tuned" AFR after unichip'ed for sometime?



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PostSubject: Re: Oil Catch Tank   Mon Aug 23, 2010 12:21 pm

ECU won't self-correct because it can't coz it is being fed data by Unichip. Think of this like those reflashing programs; in a reflash, a parameter like AFR is changed within the ECU and even though this parameter has been changed and a car's O2 sensor feeds changed O2 readings (changed as in different from stock factory settings) to the ECU, the ECU can't "self correct" because the changed data has become essentially the "correct" (i.e. like factory stock) data. This is essentially the same case with piggyback like Unichip.
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PostSubject: Re: Oil Catch Tank   Mon Aug 23, 2010 12:27 pm

i see. Thanks for the input bro. I think most of my doubts are cleared. Hehe. Sorry i hijack your oil catch tank thread Smile
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PostSubject: Re: Oil Catch Tank   Mon Aug 23, 2010 12:31 pm

strike961 wrote:
i see. Thanks for the input bro. I think most of my doubts are cleared. Hehe. Sorry i hijack your oil catch tank thread Smile
Over here, we are veli de tolerant about threads going OT la Smile
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PostSubject: Re: Oil Catch Tank   Tue Aug 24, 2010 1:17 pm

gelygeleman wrote:
ya, same me.. tuner adjusted AFR to 13.2 for idling compare to stock around 14.
my spark plug was champion iridium, vacuum hoses also in good condition.
Hmm, I just re-read this and I am a bit puzzled why your Unichip tuner needed to change idling AFR. I dunno if my Unichip tuner changed my idling AFR or not, however.

But according to you, your tuner changed AFR to run richer when idling. Why? Note that running richer when idling can lead to problems with spark plugs (i.e. plugs can get dirtier) coz there can be too much petrol.

Donny (or any sifus here), do you know what is the spec of our 4B11 camshaft? i.e. intake/exhaust valve. The spec will let us know roughly what AFR to set for idling.
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Elan
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PostSubject: Re: Oil Catch Tank   Tue Aug 24, 2010 2:27 pm

i dont know Rev, i need to check again with Joseph.
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PostSubject: Re: Oil Catch Tank   Tue Aug 24, 2010 3:21 pm

Elan wrote:
i dont know Rev, i need to check again with Joseph.
OK, let us know what he says about this. I will also check with my Unichip tuner this Friday (when my/ex Unichip gets installed in a member's car) regarding idling AFR.
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PostSubject: Re: Oil Catch Tank   Tue Aug 24, 2010 3:33 pm

i think i need to adjust back my idling AFR to normal stock setting
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PostSubject: Re: Oil Catch Tank   Tue Aug 24, 2010 3:47 pm

gelygeleman wrote:
i think i need to adjust back my idling AFR to normal stock setting
You and Elan currently keeps getting fluctuating RPM when idling anot? When was the last time ur engine died when idling?
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PostSubject: Re: Oil Catch Tank   Tue Aug 24, 2010 5:52 pm

seldom.. jarang2.. only happen 3 times since installed it. last eng died 2 weeks ago
beside kancil xzos buluh.. malu laa..
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PostSubject: Re: Oil Catch Tank   Wed Aug 25, 2010 9:56 pm

gelygeleman wrote:
seldom.. jarang2.. only happen 3 times since installed it. last eng died 2 weeks ago
beside kancil xzos buluh.. malu laa..
Try and nego with ur Unichip tuner to reset idling AFR back to stock for free (I think can la, just tell him ur problem). Then see what happens 1-2 months down the road.

FYI, I 100% always in N when I stop in traffic lights. I dunno enuff about our CVT and 4B11 to know what is the correlation but I always go neutral gear when I stop using all my old cars Smile

Just to add to the confusion ( haha) , air cond on anot when stop/idle and engine died-ed?
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PostSubject: Re: Oil Catch Tank   Wed Aug 25, 2010 10:15 pm

Rev, any prob if you're in D when idle?
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PostSubject: Re: Oil Catch Tank   Wed Aug 25, 2010 10:25 pm

strike961 wrote:
Rev, any prob if you're in D when idle?
With Unichip, I honestly can't remember coz like I said I always in N or P when stationary. I can't remember when I was in D when stationary.

Strike, try to make a list of things to ask when I see you on Friday.
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PostSubject: Re: Oil Catch Tank   Fri Aug 27, 2010 1:48 am

where both of u want to install this unichip? sunway?
mayb i can drop by to witness u all... haha. i stay in Bandar Sunway too
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PostSubject: Re: Oil Catch Tank   Fri Aug 27, 2010 1:52 am

its in Robin's place in Bandar Puteri Puchong. Come over la Smile
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