1986 Corvette mass air flow sensor and code 33 issue
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Heel & Toe
Joined: Dec 2025
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1986 Corvette mass air flow sensor and code 33 issue
on my 1986 Corvette I've been having a problem where I can drive the car for around 2 minutes before the engine light clicks on and puts my car into like a limp mode where I can't accelerate and it was showing code 33.so after this I decided to replace my mass air flow sensor and still it did the same thing then I realized that it wasn't getting 12 volts so I checked the relays by turning on the car and only the burn off relay clicked so I checked the power relay for the mass air flow sensor and it was getting 12 volts so I decided to run a jumper wire to ground it and this caused the mass air flow sensor to begin receiving 12 volts however now the car gets error code 33 and 36 and it's kind of similar but when you drive as soon as you accelerate a bit the engine light comes on and puts me in the same limp mode does hasn't this happen to anybody else
