Quote:
Originally Posted by gregwx5
I just got these codes...P0491 and P0492...I'm wondering how vital it is that I repair these...don't have much time at the moment...will it be okay for a few days? X seems to run fine. Also how difficult is it to replace these parts, any special tools?
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Its an emissions device that pumps air into the engine during cold starts to assist in getting the cats up to temp. You're fine driving it till you get it fixed, but don't drag your feet on replacing it either cause cats aren't cheap.
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650hp 10 X5///M - Stage 2, Vibrant 1794's , gutted cats, custom intake, AC Forged 22's 325hp 98 BMW 740iL - ///M5 6spd, www.bavengine.com w/ Performance Option, electric fan, CF intake tube w/ heatshield, Mag 14816 w/ notched bumper, Bilstein/H&R Stage II/Powerflex 600+hp 02 Harley F150 - MHP900 Stage 3 engine, KB2.3, 8# lower, 60# inj, Walbro FP's
135hp 01 TL1000R - M4 full exhaust, K&N, Yosh box, -1/+2 gears, 2CT's
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