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 MANUALSVOLKSWAGEN1996JETTA (1H2) L4-2.0L (ABA)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSLOCATIONS
1996 Volkswagen Jetta (1H2) L4-2.0L (ABA)
Computers and Control Systems: Locations
1996 Volkswagen Jetta (1H2) L4-2.0L (ABA)SECTION Locations
1. Evaporative Emission (EVAP) canister purge regulator valve -N80-
- EVAP system.
2 Mass Air Flow (MAF) sensor -G70-
3 Throttle valve control module -J338-
4 Engine Control Module (ECM) -J220-
5 Connector
- Brown, 4-pin
- For Heated Oxygen Sensor (HO2S) -G108-and Oxygen Sensor (O2S) heating (after three way catalytic converter).
6. Connector
- Black, 4-pin
- For Heated Oxygen Sensor (HO2S) -G39- and O2S heating (before three way catalytic converter), Installation position: front exhaust pipe.
7 Intake Air Temperature ((IAT) sensor -G72-.
8 Ignition coil -N152-.
9 Speedometer Vehicle Speed Sensor (VSS) -G22-.
10 Engine Coolant Temperature (ECT) sensor -G62-.
- Black, with Engine Coolant Temperature (ECT) sensor -G2-.
11 Center connector
12 3-pin connector
- For knock sensor
- Blue
13 3-pin connector
- For engine speed sensor
- White
14 Engine speed (RPM) sensor -G28-
15 Distributor with Camshaft Position (CMP) sensor -G40-.
16 Fuel injectors
- Cylinder 1 -N30-
- Cylinder 2 -N31-
- Cylinder 3 -N32-
- Cylinder 4 -N33-
17 Knock Sensor (KS) 1 -GSI
18 Ground (GND) connection
19 Fuel pressure regulator
20 Temperature regulator Thermal Vacuum Valve (TWV )
- For intake air preheating
21 EVAP canister
- Below air cleaner (Cabrio).
- Behind right front wheel housing (Golf, Jetta).
22 Leak Diagnosis Pump (LDP) filter
- Golf, Jetta
23 Leak Diagnosis Pump (LDP)
- Golf, Jetta
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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.