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K11 Tuning & Mechanical
Engine low idle!
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<blockquote data-quote="pollyp" data-source="post: 559151" data-attributes="member: 4527"><p>If the old one had a seized waxstat, the throttle would've been stuck open causing fast idle even when warm, and what most ppl tend to do is close up the idle bleed screw to slow it down n mask over the actual problem.</p><p></p><p>The fix would be to remove that faulty waxstat mechanism, recheck the TPS and IACV is working and within spec, then adjust the warm idle speed with the bleed screw.</p><p></p><p>If the new TB is a facelift bosch type, which doesn't have the old waxstat, then assuming the IACV is working (fast idles when cold and slows down once warmed) you just have to open/unscrew the idle bleed screw to raise the warm idle speed to 750rpm. Then recheck she fast idles at bout 1400rpm once cold.</p></blockquote><p></p>
[QUOTE="pollyp, post: 559151, member: 4527"] If the old one had a seized waxstat, the throttle would've been stuck open causing fast idle even when warm, and what most ppl tend to do is close up the idle bleed screw to slow it down n mask over the actual problem. The fix would be to remove that faulty waxstat mechanism, recheck the TPS and IACV is working and within spec, then adjust the warm idle speed with the bleed screw. If the new TB is a facelift bosch type, which doesn't have the old waxstat, then assuming the IACV is working (fast idles when cold and slows down once warmed) you just have to open/unscrew the idle bleed screw to raise the warm idle speed to 750rpm. Then recheck she fast idles at bout 1400rpm once cold. [/QUOTE]
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