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.
1991 Mazda MX-6 GT, StandardFACTORY OEM SERVICE PROCEDURE
Fuel Injected Models (Cold)
- Ensure air intake system is unrestricted.
- Remove By-Pass Air Control (BAC) valve hose and check valve for restrictions. If no restrictions are found, check resistance at BAC valve terminals.
- Check EGR valve and solenoid for correct operation.
- Check intake air and water thermosensor.
- Check airflow meter or ISC valve malfunction.
- Check A/C cut-off system (if equipped).
- Ensure fuel system pressure is correct.
- Check for cracks or poor connections at airflow meter or throttle body.
- Verify correct throttle position sensor adjustment and resistance 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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.