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  1. Engine Mgmt., Fuel, Spark, EGTs, & Air/Fuel Ratios
    please help. car is a 87 Z T-II. starts fine. idles fine. but starts to miss fire around 6 to 7 PSI of boost. drove car home and found code 15 and 22(just set base timing to 12 btdc) does the speed sensor effect timing under load? i also checked all my new silicone vacuum lines and everything...
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