Question about Mitsubishi Galant
Hi!!This occurs when the ignition timing and fuel mixture are changed causing an excessive amount of heat.
If the engine is running on a VERY lean or rich mixture, the temp will be so high to make the exhaust manifold glow red,. which would damage the catalytic converter making things worst.
You did not provide the vehicle's year and model, but, you should have DTCs stored in the PCM memory. Scan the computer for Trouble Codes and you'll find out if the mixture is in the lean or rich side and you can make the necessary adjustments. AutoZone, Checkers and similar auto parts stores let you borrow DTC Scanners.
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Posted on Mar 16, 2011
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Posted on Jan 02, 2017
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