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Drew, Super Mazda Tech.
Category: Mazda
Satisfied Customers: 2188
Experience:  19 yrs. experience. Mazda Senior Certified Tech, with Ford, Linc. & Merc. experience. ASE L1 Advanced Certified Master Tech.
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Code P7020 Intake Manifold tuning valve stuck open, P7020

Customer Question

Code P7020 Intake Manifold tuning valve stuck open
JA: Just to clarify, what's the exact code? And have you tried to reset it?
Customer: P7020 and yes I have reset. I took intake apart and found AIR valve was full of carbon. replaced it. still have same code
JA: What is the model/year of your Mazda?
Customer: RX8 2006
JA: Are you fixing your RX-8 yourself? What have you tried so far?
Customer: Took upper & lower intakes off. Looked at VDI and SSV valves. They open and close by hand. looked at AIR valve and it was heavy carbon so I replaced it. Using a Chilton book and do not see Intake Manifold Tuning valve in diagrams. Still same code.
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 9 months ago.
Category: Mazda
Expert:  Dan replied 9 months ago.

Hello my name is***** am an ASE Master Technician and I am glad to help you with your question.

Expert:  Dan replied 9 months ago.

I am not seeing that code in the service manual, double check that its the right number.

Customer: replied 9 months ago.
Sorry! I had to go back to car had codes reversed. It is P2070.
Customer: replied 9 months ago.
Code is P2070
Expert:  Dan replied 9 months ago.

Ok I found it. I can email you the steps from the service manual on how to diagnose this code.