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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSOLDSMOBILE1998ACHIEVA 3.1 M, 4T40E/MN4REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 1 (ENGINE CONTROLS - TESTS W/CODES - 2.4L)DIAGNOSTIC TROUBLE CODESDTC P0106 - MAP SENSOR SYSTEM PERFORMANCEDIAGNOSTIC PROCEDURES
1998 Oldsmobile Achieva 3.1 M, 4T40E/MN4
Diagnostic Procedures
1998 Oldsmobile Achieva 3.1 M, 4T40E/MN4SECTION Diagnostic Procedures
WARNING: This page is about a different variant/trim than selected.
- Perform POWERTRAIN ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK , then go to next step.
- Turn ignition on, with engine off. Using scan tool, compare BARO reading with a known-good vehicle. If BARO reading is normal for the altitude, go to next step. If BARO reading is not normal for the altitude, go to step 7).
- Start engine while watching MAP sensor value. If MAP sensor value changes, go to next step. If MAP value does not change, go to step 5).
- With engine still running, snap throttle while watching MAP sensor display on scan tool. If MAP sensor value change rapidly with throttle position changes, go to step 8). If MAP value does not change rapidly, go to step 6).
- Disconnect MAP sensor vacuum hose. Install a hand-held vacuum pump to MAP sensor. Turn ignition on, with engine off. Apply 15 in. Hg to MAP sensor. Monitor MAP sensor value on scan tool. If MAP sensor value changes, go to next step. If MAP sensor value does not change, go to step 7).
- Remove MAP sensor vacuum hose from manifold port. Inspect manifold port and hose for restriction. Repair as necessary. After repairs, go to step 8). If no problems were found, go to next step.
- Replace MAP sensor. After replacing sensor, go to next step.
- Using scan tool, select CLEAR INFO or CLEAR DTCS function to clear DTCs. Start engine and allow it to idle. Ensure engine is at normal operating temperature. Drive vehicle at a steady speed. Select SPECIFIC DTC function then enter this DTC. If scan tool indicates that this DTC TEST RAN AND PASSED, go to next step. If scan tool does not indicate that this DTC TEST RAN AND PASSED, repeat step 2).
- Check for additional DTCs. Diagnose affected DTCs as necessary. If no other DTCs are set, system is okay. See DIAGNOSTIC AIDS.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.