Compression test:
1. Remove ECU fuse from fuse box under hood.
2. Remove all spark plugs.
3. Screw compression tester into a cylinder.
4. Hold gas and clutch pedals down.
5. Crank the motor 5-6 times, take your reading.
6. Repeat.
Removing the ECU fuse prevents fuel from going in.
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2015 Ford Mustang GT Fastback - Ingot Silver - 6M - Performance Package - Gibson Catback, JLT CAI, FR 47lb injectors, BAMA E85 tune, Eibach Sportline, BMR wheel hop kit, UPR oil separator, Steeda shifter bushing/bracket
Team B.O.B.® - Ballaz on a Budget