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Downstream Oxygen Sensors - Results
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sfttailpaul Offline
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Post: #31
RE: Downstream Oxygen Sensors - Results
You guys are on the right track, BUT since 2006, ALL the major auto manufacturer's are using the downstream HO2S to control your fuel trims. This sensor MUST be addressed. Pre 2006 depends on the vehicle make. Mopar is the toughest one to crack, and the Hemi's are the most sophisticated. I have spent many hours tuning for them... Ford uses frequency based (need their Digital, dual EFIE); GM waste of time to mess with the MAP, spend time on the CTS and IAT. I use a resistor in parallel on these circuits.

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08-31-2009 08:44 AM
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merryjohn23 Offline
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Post: #32
RE: Downstream Oxygen Sensors - Results
There is a problem ,when I install it.

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10-08-2010 03:38 AM
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mike Offline
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Post: #33
RE: Downstream Oxygen Sensors - Results
What problem are you talking about. support@fuelsaver-mpg.com will take car of you if you're having trouble installing one of their products.

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10-09-2010 02:23 PM
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safety steve Offline
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Post: #34
RE: Downstream Oxygen Sensors - Results
I have a 98 Jeep Cherokee. I just hooked up my down stream to analog and adjusted to 250mV and went from a 10% improvement to 90%. I spent all week trying to figure it out and once I found it, that was it.
04-27-2011 08:57 PM
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