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Showing results for tags 'WRX STI'.
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Hey all. I just got done replacing both O2 sensors on my 05 WRX STI. It was throwing a running rich code, and getting abysmal fuel mileage, hence the sensor replacement. Now after the sensor swap, it hasn't thrown the rich mixture code with a 5 mile test drive. Now however it has a wandering idle. If you disengage the clutch and let it drop to idle, it will either drop so low it actually dies, or it will drop to around 200 RPM before climbing back to 800. It will also occasionally speed up the idle to 1000 RPM. It had this wandering issue before the sensor swap, but it was never bad enough to kill the car and generally wandered up instead of down. I have only had this car a few months and the previous owner tuned it. How is the idle controlled on this car? Is it all ECU controlled? Or is there something I can adjust? Do I just need to give the ECU time figure out it has new sensors? Thanks in advance. -
Hey all, hopefully I won't be ridiculed or called an idiot for asking this, but I really want to know. I recently got an 05 WRX STI, I read that the DOHC EJ25 motors are interference engines. I know if you change your timing belts regularly, the odds of catastrophic failure due to pistons hitting valves is low. However, pulleys can seize and belts can fail prematurely. Also if you run without covers so you can regularly check them, that adds the possibility of something getting caught and breaking the belt. So my question is, how hard is it to make the engine non-interference? Will installing thicker head gaskets get the clearance needed to make it non-interference? If you increase how much boost the turbo puts out, will it successfully compensate for the compression loss you would get by raising the heads? Just how much overlap is there between the valves and the piston? Thanks in advance.
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Hey there folks, This is my first attempt at posting a question on a forum, so please forgive me if I create any breaches in etiquette. But I do have a question for you all. I've owned my 2006 STI since new. However, shortly after buying it I replaced the trunk lid and wheels with something a little more fitting of someone my age (I needed the car to look a little more subdued..). So, I've had this complete black STI trunk lid and gold "BBS" wheels up on my attic for about 10 years now. They are practically new and I'm wondering if they're worth anything. This is an honest question, if I were to put them up for sale, what would I expect to get for them? In other words, would it be worth the time and effort to try and sell them? Thanks in advance, Dave