2000 ford windstar stalling when too much power being used

A bad or dirty battery cable can cause your problem. Check your cables and clean or replace them.

Ford Windstar Starting/Stalling Problems - Edmunds.com

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Oct 16, 2007 - 31 posts - ‎26 authors
Then yesterday the car just died while driving and had to be towed back to ... On pre-98 Windstar, it might be called CCRM (Constant Control ... Ford Windstar Alternator and Battery Problems
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Oct 24, 2006
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98 windstar 3.8 problems - CarGurus

Find out why the light is on. Maybe you broke or dislodged a connector when you replaced the sensor.

a buddy of mine had an f-150 that did that.his ignition wires in the stearring column were shorting out.

I have same van (2001) a relative give me. My uncle (orig owner) have a recall card from ford for SPEED CONTROL SYSTEM MODIFICATION..maybe this is the problem. my van is doing the same thing like yours...no codes.. but sometimes the odometer wont go higher than 35mph...

Your van has four o2 sensor's, the code should tell you which one is bad for exsample code should be like,
o2 sensor bank 1 sensor 1 or 2
o2 sensor bank 2 sensor 1 or 2

Also make sure you don't have a vacum leak.

the fuel pump relay is weak

those two codes are for the o2 sensors. both are the upstream sensors on the front and rear banks. so they are desinagted bank 1 sensor 1 and bank 2 sensor 1. them most common cause for this is faulty o2sensors , bad gas and of a poor running engine. so if your car runs good (no misfire) and gas is ok then replace the o2sensor witch is the very most common cause.

you should check the all vacuum hoses starting at the egr valve. if the vaccum hoses are soft they will collapse and stall the van.

this is from a different post

http://www.fordwindstarrecall.info/