Section 11 (2.8L PFI Tests W/Codes)
WARNING: This page is about a different car, the 1987 Chevrolet Corsica and 1987 Chevrolet Beretta. However, it is still accessible from the selected car via links, so may be relevant.
- Model Identification
- Description
- Operation
- Diagnosis & Testing
- Scan Tester Usage
- Diagnostic Charts
- Diagnostic Circuit Check
- Chart A1 - No "Service Engine Soon" ("SES") Light
- Chart A2 - No ALDL/Won't Flash Code 12 "SES" Light On Steady
- Chart A3 - Cranks/Won't Run
- Chart A7 - Fuel System Diagnosis
- Chart B1 - Restricted Exhaust System Check
- Code 13 - Open Oxygen Sensor Circuit
- Code 14 - Coolant Temperature Sensor (Cts) Signal Voltage Low
- Code 15 - Cts Signal Voltage High
- Code 21 - TPS Signal Voltage High
- Code 22 - Throttle Position Sensor Signal Voltage Low
- Code 23 - Mat Sensor Signal Voltage High
- Code 24 - Vehicle Speed Sensor
- Code 25 - Manifold Air Temperature Sensor Signal Voltage Low
- Code 32 - EGR System Failure
- Code 33 - MAF Signal High
- Code 34 - MAF Sensor Voltage Low
- Code 35 - Idle Speed Error
- Code 41 - CYL Select Error (2.8L "L"
- Code 42 - Est (W/Dis)
- Code 43 - ESC
- Code 44 - Lean Exhaust Indication
- Code 45 - Rich Exhaust Indication
- Code 52 - CALPAK Error
- Code 53 - System OVERVOLTAGE
- Code 54 - Fuel Pump Voltage Low
- Code 61 - Degraded O2 Sensor
- Code 63 - Map Sensor Voltage High
- Code 64, Map Sensor Voltage Low
- Component Check (C Charts)
- Chart C1A - Park/Neutral Switch
- Chart C1D - Map Output Check
- Chart C1E - PSPS Check
- Chart C2A - Injector Balance Test
- Chart C3 - Canister Purge Check
- Chart C4 - IGN Misfire (W/ Dis)
- Chart C5 - ESC
- Chart C7 - EGR Check
- Chart C8A - TCC
- Chart C8C - Shift Indicator
- Chart C10 - A/C Clutch Control
- Chart C12 - Cooling Fan CKT, (1 Of 2)
- Chart C12 - Cooling Fan CKT, (2 Of 2)
- Component Locations
- ECM Terminal Identification
- Wiring Diagrams