5 ^2 [+ d7 R: b( e0 B8 y4 U6 P 4 \3 u! l4 |1 @0 @% Rwow,high octane fuel will make timing retard, frist time ever heard. You figure that out or somebody told you so?
原帖由 shark27 于 2009-3-27 15:33 发表 ) Y. Y; `3 N0 M5 d" `( N( E7 m4 H' P9 E
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wow,high octane fuel will make timing retard, frist time ever heard. You figure that out or somebody told you so?
原帖由 shark27 于 2009-3-27 20:39 发表 ( G9 Q' p! S- N+ |8 g) t 6 F- e/ w0 V/ ?) g& e' W9 u: Y0 V1 {+ W+ M
low octane fuel causing excessive knocks, knock sensor detected it, send singal to PCM, PCM will retard ignition timing to reduce knock. 这根本不算什么高见,所有的汽油引擎管理系统都是这样工作的。
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这么简单还用问人?再老一点的车,你要想加91的油,把DISTIUBUTOR稍微挪动一点,然后重新用SNAP-ON 的TIMINGLIGHT 对一下#1 CYLIN 的TIMING 就可以了,延迟点火的时间就有高档轿车的感觉了,是吧SHARK大侠