Guest crx34 Posted February 17, 2003 Report Share Posted February 17, 2003 my friend was telling me about a fuel control module that will limit your air/fuel mix, so you can get better gas milage. does anyone have one or know more about them than i do. just tring to save some money w/ my explorer, i have to fill up EVERYDAY! it costs me $30/35 every time. let me know. Thanks! Quote Link to comment Share on other sites More sharing options...
Nick Posted February 18, 2003 Report Share Posted February 18, 2003 Damn, quit driving 300 miles a day and you wont have that problem. Are you in 4wd full time? have severely low tire pressure? Check 02 sensors, they may need replaced. Dont buy any aftermarket shit that claims gas milage increases. Quote Link to comment Share on other sites More sharing options...
Guest crx34 Posted February 18, 2003 Report Share Posted February 18, 2003 yeah i have to drive 300 miles a day if i want to make good $$$... yes it's AWD, my tire presure is pretty normal, altough i should check it. i will i know if the O2 sensor is bad, and how much, if anything, will it help if i replace it? Quote Link to comment Share on other sites More sharing options...
Renner Posted February 18, 2003 Report Share Posted February 18, 2003 A bad 02 sensor will cause you to get much worse gas milage, since the ECU relies on it for closed loop operation during normal cruising conditions. Closed loop is how the ECU tries to keep the air/fuel ratio as close to stoichiometric as possible, within certain safty limits. As an 02 sensor goes bad, it reads leaner then it should, so the ECU tries to add more fuel to compensate, and get things back to stoich. It is actually a design safty factor that governs it to work that way. Better to run too rich and have bad gas milage, then run too lean and have detonation and possibly a melted piston, just from a bad 02 sensor. Quote Link to comment Share on other sites More sharing options...
Mensan Posted February 18, 2003 Report Share Posted February 18, 2003 Get long tubes and a free flowing exhaust. Quote Link to comment Share on other sites More sharing options...
Guest crx34 Posted February 18, 2003 Report Share Posted February 18, 2003 how will i really know if the O2 sensors are bad? is there a way i or an auto store can test them instead of just putting new ones in? how much do they cost? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.