What are the possible causes for my car running lean through the entire map.

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06-12-10, 08:13 PM

jetlude

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What are the possible causes for my car running lean through the entire map.

I have not changed anything, but I am running about 1 - 1 1/2 afr leaner from idle to 20psi. Has anyone experienced this? The fuel pressure remains the same,and has not dropped.

Any Ideas?

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06-12-10, 08:23 PM

SirCygnus

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leaner than what? did you get it tuned? is your tune running leaner?

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06-13-10, 09:56 AM

jetlude

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Quote:

Originally Posted by SirCygnus

leaner than what? did you get it tuned? is your tune running leaner?

Pardon me, leaner than usual. Its fully tuned and the tune is running leaner now.

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06-13-10, 10:14 AM

siguy2k

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ECU? Setup? Are your airtemps the same?

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06-14-10, 10:03 AM

jetlude

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I think I got it solved........ It seem to be related to my LC1 going out of wac, and displaying and sending false AFR readings to the ECU.

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06-15-10, 12:37 AM

Stanello

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It could just be the sensor. From what I've seen the Bosch sensors start to read leaner as they die.

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