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.
2001 Pontiac Aztek Base, FWDFACTORY OEM SERVICE PROCEDURE
Code Enable Criteria
Conditions for running DTC:
- DTCs P0102, P0103, P0107, P0108, P0121, P0122, P0123, P0401, P0404, P0405, P0440, P0442, P0446, P1404 or P1441 is not set.
- Engine is running.
- Ignition 1 signal is at least 9 volts and not greater than 18 volts.
- TP sensor angle is greater than 25 percent.
- TP sensor is steady for greater than 1.5 seconds.
- MAP sensor is greater than 63 kPa.
- MAP sensor is steady for greater than 3 seconds.
Conditions for setting DTC:
- Actual MAF sensor signal is not within a predetermined range of the calculated MAF value.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no 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.