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The firing order for a 1990 Olds cutlass supreme 3.1litre is 1, 2, 3, 4, 5, 6. The number one cylinder is closest to the pulleys on the left as you face it.

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9y ago
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Q: What is the firing order for a 1990 olds cutlass supreme 3.1litre and where is 1 and which the cyl are 123456 or what?
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