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How exhaust manifold cracking affect engine performance of an efi engine?
Wiki User
∙ 10y ago
Unmetered air entering the system before the Bank 1 or Bank 2 O2 sensor will send a false lean reading to the ECM. This could cause the ECM to extend the fuel trim. This could cause eccess fuel to pass through the catalaytic converter. This could cause damage to the catalytic converter. If the fuel trim stays below +25%, the check engine light may not illuminate so the problem may go undetected until the cat gets ruined.
Wiki User
∙ 10y ago
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Does a cracked manifold in a Renault Megane affect emissions?
If you are referring to the exhaust manifold then it should not affect emissions as the o2 sensor is after the exhaust blow it will adjust emmissions accordingly
How does the exhaust system affect car performance?
An aftermarket performance exhaust can free some of the power in your engine. These systems allow for a quicker, more efficient path for exhaust gases to escape. This means your engine "breathes" better.
What does size and shape of the exhaust and intake ports affect?
It affects how the engine breathes. The better it breathes, the better the performance.
Can a cracked exhaust manifold cause the check engine light to come on?
Yes, it can affect the oxygen sensors and catalytic converter.Yes, it can affect the oxygen sensors and catalytic converter.
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That reduces exhaust back pressure and will affect your performance unless you get the bike on a computer.
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