2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Misfires @ idle

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Old Sep 24, 2001 | 03:27 PM
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Red face Misfires @ idle

My 87 TII has this misfire at idle like every 2 seconds...the rpms then drop from 800rpm to about 500rpm and goes up and down, back and forth. Is that for sure an IGNITION problem? I have new spark plugs in it and new spark plug wires. Don't know what could be causing it, how often do the stock COILS go bad? Would adding an MSD ignition box get rid of this problem?
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