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walfreyydo walfreyydo is online now
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Join Date: Mar 2020
Location: Wisconsin
Posts: 700
Garage
You should check if the vibration you are getting is a misfire - the car could be running on 3 cylinders. Multiple ways you can check this if you google/youtube (including using a thermo gun on the exhaust runners).

If you do indeed have a misfire on one cylinder, you should look at the cap/rotor, plugs or plug wires. Plug wires in particular can be easy to get in the wrong firing order, so double check.
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Tyler from Wisconsin, 1989 944 S2 on Megasquirt PNP
Old 04-25-2024, 12:42 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)