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Jeep Wrangler YJ
YJ General Discussion
No check engine light with ignition on
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<blockquote data-quote="machoheadgames" data-source="post: 435548" data-attributes="member: 18789"><p>No. Your issue is the PCM capacitors being bad and not allowing the check engine to light unless it lights up. It will crank and crank fine because that is not computer controlled but it will not start until that check engine light is lit from the computer doing what it needs to do. The real reason you can't start is because the computer will not turn on the injectors, the coil, or the fuel pump until the capacitors work and it can turn them all on.</p></blockquote><p></p>
[QUOTE="machoheadgames, post: 435548, member: 18789"] No. Your issue is the PCM capacitors being bad and not allowing the check engine to light unless it lights up. It will crank and crank fine because that is not computer controlled but it will not start until that check engine light is lit from the computer doing what it needs to do. The real reason you can't start is because the computer will not turn on the injectors, the coil, or the fuel pump until the capacitors work and it can turn them all on. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
No check engine light with ignition on
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