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Old 07-07-2007, 07:57 AM   #1
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Exclamation O2 Sensor Unplug

Hey Folks,
Some might remember after me pulling my engine tranny out, I noticed the next morning that the O2 wires were dangling... without a plug!
Well, after my aero cap install and a couple other mods I did a hwy test and saw 4mpg gain. Well, the last few days I saw my mpg drop back down to the original 18mpg hwy. My experience has been even with all the other mods and an EFIE, the mpg just seems to go back to the original mpg after a few days.

So yesterday I took out $64 and put a new O2 sensor in. Now the second O2 (bank 1 sensor 2) is popping a code but it's rotted and the wires are coming out.

Bottom line, I'm seeing my 23mpg hwy again but not sure for how long. The Dodge efi computer must be pretty smart, afterall, it's out-doing me
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1998 Dodge Dakota Sport 5.2 auto,
Aero Cap,
Cam advanced 4 degrees,
MSD 6TN,
MSD Blaster2 Coil,
MSD 8.5mm SuperConductor wires,
Borg-Warner cap & button
Halo plugs,
PCV jar
and more to come...
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Old 07-07-2007, 10:38 AM   #2
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Sounds like you are getting better FE in open loop than in closed?
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Old 07-07-2007, 06:34 PM   #3
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Well, now that I am playing with the MegaSquirt, I should see much better mpg numbers
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1998 Dodge Dakota Sport 5.2 auto,
Aero Cap,
Cam advanced 4 degrees,
MSD 6TN,
MSD Blaster2 Coil,
MSD 8.5mm SuperConductor wires,
Borg-Warner cap & button
Halo plugs,
PCV jar
and more to come...
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