Why wont my car accelerate with P0122?

The ECM thinks the throttle is fully closed, so it limits engine power. A new TPS usually fixes this immediately.

Can I drive in limp mode?

You can drive slowly to get home or to a shop, but speed is limited. Do not drive far in limp mode.

High Severity

Fuel System

TPS voltage is below minimum threshold. The ECM cannot determine throttle position accurately.

Common Fix

Replace TPS

Estimated Cost (DIY)

$20 - $100

Faulty TPSlikely

Wiring short to groundpossible

Bad TPS connectorpossible

ECM driver faultunlikely

Need to read or clear this code?

Why wont my car accelerate with P0122?: The ECM thinks the throttle is fully closed, so it limits engine power. A new TPS usually fixes this immediately.
Can I drive in limp mode?: You can drive slowly to get home or to a shop, but speed is limited. Do not drive far in limp mode.

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