[Gwangsun]

Need some help with my o3 bugeye

I just picked up the car on Saturday and have been driving it daily. When on the highway the car tends to drift left and right, while I'm holding the wheel straight. It drifts left when i give it gas and drifts right when i let off the gas. Has this ever happened to anyone else?

Another problem that I'm having is when i turn on the car it turns on but then the idle drops and the car turns off.

Another dumb thing that happens is that when i brake the car shakes and i feel the brake peddle shaking also. When stopping from high speeds the car tends to start pulling to the side, as if the brakes are not grabbing evenly.

I need some help.

Thanks

 

[Donkey]

If you post questions about engine performance issues it helps to know what engine mods have been done.I'm guessing you might have an air intake on the car.The braking is probably "warped" rotors or pad build up on the rotors.The steering issue is easilly diagnosed if you take your car to NTB/Merchants/Tire Kingdom and get a free alignment check.Also check your tire pressure.

 

[Trainrex]

When on the highway the car tends to drift left and right, while I'm holding the wheel straight. It drifts left when i give it gas and drifts right when i let off the gas. Has this ever happened to anyone else?

Sounds like either a bad alignment, poor tires, or worn lower control arm bushings.

 

[RDB81]

This sounds like normal maintenance is needed. The brakes need to be checked, and you will probably need new rotors. Also have the alignment and tire checked for the car pulling one way or another. With the car shutting off at low idle, maybe you need a new fuel filter, or just a simple tune up. This is all normal maintenance for a 5 year old car, and nothing Subaru specific.

 

[koogxone]

Another problem that I'm having is when i turn on the car it turns on but then the idle drops and the car turns off.

I have this problem as well.. but only when the car is already hot/warmed up. Cold starts are completely fine. I have no idea why it does this either :sadwave:
I've just been giving it a little bit of gas when i start it up fully warmed.

RDB81 - fuel filter? Not synonymous with oil filter right?

 

[Donkey]

I have this problem as well.. but only when the car is already hot/warmed up. Cold starts are completely fine. I have no idea why it does this either :sadwave:
I've just been giving it a little bit of gas when i start it up fully warmed.

RDB81 - fuel filter? Not synonymous with oil filter right?

Considering you have a Injen CAI i would try cleaning the MAF sensor.You have never heard of a fuel filter?Every car since the 1940's has come with one...

 

[koogxone]

I have a brand new MAF sensor; mine went out about 2 months ago. Also have brand new o2 sensors. The car has been protuned, so the intake messing with the MAF readings should not be an issue, right?

 

[06wrx4me]

Sounds like either a bad alignment, poor tires, or worn lower control arm bushings.

Or all 3.

This sounds like normal maintenance is needed. The brakes need to be checked, and you will probably need new rotors. Also have the alignment and tire checked for the car pulling one way or another. With the car shutting off at low idle, maybe you need a new fuel filter, or just a simple tune up. This is all normal maintenance for a 5 year old car, and nothing Subaru specific.

+1

Considering you have a Injen CAI i would try cleaning the MAF sensor.You have never heard of a fuel filter?Every car since the 1940's has come with one...

+2

Does it have an afmkt BOV? Pics of the engine bay please.

 

[Donkey]

I have a brand new MAF sensor; mine went out about 2 months ago. Also have brand new o2 sensors. The car has been protuned, so the intake messing with the MAF readings should not be an issue, right?

The oil from the filters that come with 99% of the intakes on the market can contaminate the MAF and the IAT sensor.Not to mention some most aftermarket filters let MORE dirt in than the stock paper element.The sensors can easially be cleaned with CRC MAF cleaner sold at most autostores.Your old MAF probably just needed to be cleaned.Easiest way for both of you to find out whats wrong is spend $80 on a Tactrix cable and datalog the car.Makes diagnosing problems 10x easier.

 

[koogxone]

The oil from the filters that come with 99% of the intakes on the market can contaminate the MAF and the IAT sensor.Not to mention some most aftermarket filters let MORE dirt in than the stock paper element.The sensors can easially be cleaned with CRC MAF cleaner sold at most autostores.Your old MAF probably just needed to be cleaned.Easiest way for both of you to find out whats wrong is spend $80 on a Tactrix cable and datalog the car.Makes diagnosing problems 10x easier.

Nope. I datalogged the car and the MAF was reading scattered data of up to 30 grams/sec of air flowing through the system. WAY too high. It also jumped randomly between 13 grams/sec of air to 30, before and after the cleaning. It was my understanding that the normal amount is somewhere around 3-4 grams/sec. Anyway, a combination of that and the front o2 sensor on its way out made my car undrivable until i got new ones of both.

Does it have an afmkt BOV?

Yep, the car came with a Turbosmart Vee-Port BOV and I haven't replaced it. I've been looking for a stock BPV for a while now :sadwave:

 

[koogxone]

BTW sorry for slightly hijacking.. but this issue is one of the OP's problems as well.

 

[06wrx4me]

Yep, the car came with a Turbosmart Vee-Port BOV and I haven't replaced it. I've been looking for a stock BPV for a while now :sadwave:

Just get an afmkt plumb back unit (recirc unit)

 

[Gwangsun]

Theres no problem talking about your car. Im bringing mine back to the dealer so that they can give it a tune up, alignment, resurfacing of the brakes and other stuff. I hope after this the car will feel better.

 

[koogxone]

Just get an afmkt plumb back unit (recirc unit)

Do you mean a recirculating valve (like the Perrin recirc BOV) or some kind of recirculating kit that works with a Vent-to-Atmosphere BOV?

Theres no problem talking about your car. Im bringing mine back to the dealer so that they can give it a tune up, alignment, resurfacing of the brakes and other stuff. I hope after this the car will feel better.

The car should feel better, but don't let them weasel their way into telling you that there are more and more things wrong with the car (hence the term "stealership"). If this happens, you might want to think about finding a local tuner that can look at the car.

 

[06wrx4me]

Do you mean a recirculating valve (like the Perrin recirc BOV) or some kind of recirculating kit that works with a Vent-to-Atmosphere BOV?

Yup.

 

[koogxone]

Yup.

Which one the recirc valve, right?

 

[06wrx4me]

Which one the recirc valve, right?

Yes you want recirc like this or stock.

http://www.perrinperformance.com/products/show/249/Blow-Off-Valve-Recirc-SS?category=37&model=18

or this one

http://www.oakos.com/Merchant2/merc...e=355&Product_Code=TXSWSRBV&Category_Code=202

http://www.gofastbits.com/index.php...s&sub_option=bovs&sub_sub_option=deceptor_pro

http://www.gofastbits.com/index.php...cts&sub_option=bovs&sub_sub_option=wrx_hybrid

http://www.gofastbits.com/index.php...ucts&sub_option=bovs&sub_sub_option=gt_hybrid