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Discussion Starter · #1 ·
My Ranger has started showing the CE on the display soon after I start driving. Then when I turn it off and it sits for a minute or so, the CE is off the next time I start it. Then when I drive it again it comes on.
If I immediately stop and turn it off and check the blink codes, it comes back with several.
41- IAT Sensor open or shorted to ground
42- Engine Temp Circuit open or shorted to ground
22- TPS circuit
45- MAP circuit
47-IAC Circuit open or shorted to ground
51 -Injector1 open or shorted to ground
58-Cooling fan driver shorted to ground
55- Diag lamp open or shorted
74-Rear diff lock control open or shorted to ground.

If all these things were actually "bad" you wouldn't think the motor would even run.

I have checked the ground point right next to the battery and it is good.

Not sure what to check next.
 

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RR, I would check & clean connection at the ECU next.
 

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Discussion Starter · #3 ·
I tried that. Took off the connector and cleaned with contact cleaner. Blew it all out with air and put it back on. Didnt see any damaged pins on the CPU. Didn't change anything, same issues.
 
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