Question about 1991 Jeep Wrangler

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We have a 1991 jeep wrangler 4.0 and we changed the fuel pump and now the coil is getting no fire when i hook the battery back up

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My 1991 Wrangler would alternate between no spark and no fuel. After replacing the crank sensor, the coil, and the fuel pump twice I started chasing wires looking for a bad ground. There is a black with a yellow stripe wire that comes out of the rear body harness between the front e brake mount and the front door post(very hard to get at)right above the bottom dash edge that should be securely grounded to the front e brake mount. As soon as I secured that ground everything worked properly again.

Posted on Feb 28, 2011

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