02 wrx w/ mods, rough idle and terrible low end power HELP :(
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This is a discussion on 02 wrx w/ mods, rough idle and terrible low end power HELP :( within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; The other day on my way to work my car started acting like it has a misfire. But I'm not ...

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    02 wrx w/ mods, rough idle and terrible low end power HELP :(

    The other day on my way to work my car started acting like it has a misfire. But I'm not showing any misfire codes. The car shakes at idle and the boost needle on my prosport gauge bounces while idling. When I press the gas pedal down it mildly shakes till about 3k Rpms and then drives fine. I replaced the spark plugs, new maf sensor, new fuel pump, new fuel filter, reset the ecu, and nothing has helped.. If anyone can help, I'd appreciate it.

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    Registered User nsibanez's Avatar
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    Check every vacuum line and intake for leaks
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    I redid all the vacuum lines with extra thick silicone hoses about 2000 miles ago along with a Perrin oil catch can and a Perrin turbo inlet..

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    02 wrx w/ mods, rough idle and terrible low end power HELP :(

    Check IACV, auxiliary belt tension, and clean the throttle body. Also check all earth straps, including battery, gearbox, and engine. My bet is either throttle body or IACV but try all.
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