3S-GTE JDM 3rd Gen Turbo Engine Lurching, #2 cylinder runs hot, are the injectors paired? [Archive] - Toyota MR2 Message Board

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91 SW20 My engine lurches, currently at about 2200 rpm, all my plugs are very dark, except for #2, which is white. The wires, ignition coil, ignitor, lower distributor, ECU, and TSP have all been replaced. Are the lurching and #2 cylinder running hot related? The injectors have two different color plug caps, but there are four injectors. Are the injectors fired in pairs?