CARB rejects VW's proposed fix for cheating 2.0-liter TDI engines

Regulators have not yet reviewed VW\'s latest proposal involving a new catalytic converter.

Confirming recent reports, the California Air Resources Board has rejected Volkswagen's initial proposals to fix non-compliant 2.0-liter (EA 189) diesel engines.

The agency claims the recall plans "contain gaps and lack sufficient detail," preventing regulators from performing a technical evaluation. The proposals also failed to "adequately address overall impacts on vehicle performance, emissions and safety."

To be clear, the CARB statement is related to VW's initial proposals that had not been publicly disclosed. Reports have indicated that VW had been engaged in tense negotiations with CARB and Environmental Protection Agency officials for several months, attempting to find an acceptable solution.

"Volkswagen made a decision to cheat on emissions tests and then tried to cover it up," said CARB chair Mary D. Nichols. "They continued and compounded the lie and when they were caught they tried to deny it. The result is thousands of tons of nitrogen oxide that have harmed the health of Californians. They need to make it right. Today's action is a step in the direction of assuring that will happen."

VW chief Matthias Mueller earlier this week claimed the company had developed another plan involving a new catalytic converter to bring 2.0-liter TDI engines back into compliance. The executive voiced optimism that the latest proposal will be met with a more favorable reaction from the EPA and CARB.

The company has scheduled a meeting with regulators today to pitch the latest recall plan.

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