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Van made a loud pop like a backfire and the engine died

(1990 Chevrolet Astro)
in Macfarlan, WV on June 11, 2012
We have replaced the Pick up coil in the distributor, the coil, the cap and roter and the ICM module. The van won't produce more then a yellow spark at the distributer wire 1 x per new try. Almost every thing has been replaced and we are still scratching our heads. We don't have any other Ideas can you help?
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Popular Answer
on February 05, 2015
Check crank sensor and PCM next. What are OBD codes?
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