Can I run MAF without 02 sensors?
08-04-2007, 03:26 PM
#1
2nd Gear Member
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Join Date: Jul 2007
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Can I run MAF without 02 sensors?
Still trying to find out why this car won't run worth a crap. It has the MAP sensor hooked up AND the MAF hooked up. Now don't you need the 02 sensors to adjust the A/F ratio? If there are no 02 sensors, how can I get this to run right?
08-04-2007, 04:04 PM
#2
5th Gear Member
Join Date: Jan 2006
Location: Puerto Rico
Posts: 3,926
RE: Can I run MAF without 02 sensors?
MAF systems do not use a MAP (although it's the same part)....it is now a BP sensor (vacuum line should not be connected to the sensor). O2's are the feedback sensors for the system to check the A/F, but if they are not present, the system will switch to a strategy based on A/F "estimations" from the other sensors (FMEM strategy).....suggest to start by checking the system for any failure codes that may be causing the A/F to be on the rich side, by running a DIY KOEO/KOER/Cylinder Balance Self-Test.
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