Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY2011MARINER PREMIER, 2.5 7, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - PINPOINT TEST KG: FUEL INJECTOR THROUGH PINPOINT TEST Z: INTERMITTENT - (EXCEPT DIESEL & HYBRID)PINPOINT TEST KG: FUEL INJECTORINTRODUCTION
2011 Mercury Mariner Premier, 2.5 7, AWD
PINPOINT TEST KG: Fuel Injector: Introduction
2011 Mercury Mariner Premier, 2.5 7, AWDSECTION Introduction
This pinpoint test is intended to diagnose the following:
- fuel injector(s) (9F593)
- harness circuits: VPWR and INJ 1 through 10
- powertrain control module (PCM) (12A650)
Powertrain Control Module (PCM) Connector
For PCM connector views or reference values, refer to REFERENCE VALUES .
POWERTRAIN CONTROL MODULE (PCM) CONNECTOR PINS REFERENCE CHART
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Crown Victoria, Grand Marquis, Town Car |
170 PIN | E52 E35 E53 E36 E54 E37 E55 E38 |
INJ1 INJ2 INJ3 INJ4 INJ5 INJ6 INJ7 INJ8 |
| E-Series 4.6L, E-Series 5.4L, Expedition, Navigator |
190-PIN | E1 E2 E3 E20 E19 E5 E4 E35 |
INJ1 INJ2 INJ3 INJ4 INJ5 INJ6 INJ7 INJ8 |
| E-Series 6.8L | 170 PIN | E52 E35 E53 E36 E54 E37 E55 E38 E56 E39 |
INJ1 INJ2 INJ3 INJ4 INJ5 INJ6 INJ7 INJ8 INJ9 INJ10 |
| Escape / Mariner 2.5L, Focus, Fusion 2.5L, Milan 2.5L, Transit Connect |
190-PIN | E1 E2 E3 E4 |
INJ1 INJ2 INJ3 INJ4 |
| F-150 6.2L, F-150 5.0L, F-Series Super Duty 6.2L, Mustang 5.0L |
190-PIN | E53 E54 E55 E62 E63 E64 E65 E66 |
INJ1 INJ2 INJ3 INJ4 INJ5 INJ6 INJ7 INJ8 |
| F-Series Super Duty 6.8L | 190-PIN | E53 E64 E65 E15 E62 E63 E55 E54 E3 E66 |
INJ1 INJ2 INJ3 INJ4 INJ5 INJ6 INJ7 INJ8 INJ9 INJ10 |
| Fiesta | 128 PIN | E34 E45 E44 E46 |
INJ1 INJ2 INJ3 INJ4 |
| Flex, MKS, MKT, Taurus |
190-PIN | E52 E35 E53 E36 E54 E37 |
INJ1 INJ2 INJ3 INJ4 INJ5 INJ6 |
| Fusion 3.5L, MKZ |
140 PIN | E52 E35 E53 E36 E54 E37 |
INJ1 INJ2 INJ3 INJ4 INJ5 INJ6 |
| Mustang 5.4L | 190-PIN | E53 E66 E63 E65 E55 E64 E62 E54 |
INJ1 INJ2 INJ3 INJ4 INJ5 INJ6 INJ7 INJ8 |
| Ranger 4.0L | 170 PIN | E52 E35 E53 E36 E54 E37 |
INJ1 INJ2 INJ3 INJ4 INJ5 INJ6 |
| Ranger 2.3L | 170 PIN | E52 E35 E53 E36 |
INJ1 INJ2 INJ3 INJ4 |
| All other vehicles | 190-PIN | E1 E4 E5 E3 E2 E19 |
INJ1 INJ2 INJ3 INJ4 INJ5 INJ6 |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.