OBD codes 14 and 34, Engine turns over fine, but not a hint of firing?

1989 MERCURY GRAND MARQUIS
100,000 MILES • 5.0L • V8 • 2WD • AUTOMATIC
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SDPLASKO
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Engine turns over fine, but not a hint of firing. OBD codes 14 and 34.
May 23, 2023 at 9:44 AM
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STRAILER
  • CAR REPAIR CONTRIBUTOR
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I would replace the MAF and coolant sensors here is what is said about the codes:

OBD Code 14: This code indicates a problem with the Engine Coolant Temperature (ECT) sensor or circuit.

OBD Code 34: This code indicates a problem with the Mass Air Flow (MAF) sensor or circuit.

Please let us know what happens.
May 23, 2023 at 1:45 PM
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SDPLASKO
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Thanks for your input. I will update you with the results.
May 24, 2023 at 12:25 AM
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STRAILER
  • CAR REPAIR CONTRIBUTOR
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Thank you.
May 25, 2023 at 4:59 PM
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