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OBD1 flashes confusing, please Help guys

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Old Jan 6, 2012 | 03:41 PM
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Default OBD1 flashes confusing, please Help guys

According to sites the 94 has obd1. Here are my flashes which really confuse me because the chart I have doesnt match. I ran 4 times. 32-2-55. I understand the 55 means end of report. My chart has no 322. Should I disconnect power for a coulpe hours and go thru the codes again or is the 32-2 a correct sequence?
 
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Old Jan 6, 2012 | 07:41 PM
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I think your miss reading it. My guess the first number 3 is really 12, 12 and 55 is normal to see.

12-22-55

12* Direct battery input to PCM was disconnected within the last 50 key-on cycles (normal)
22** Engine coolant temp sensor signal outside the acceptable range
55* End of error messages (If you get this only, no errors were found)

https://dodgeforum.com/forum/1st-gen...-96-codes.html

So 22 is the only code you need to worry about. First reset the codes by disconnecting the battery for a min, then get the vehicle to operating temp and drive for a bit, see if it comes back.
If so most likely the wire or connector is bad or it is the sensor it self which is cheep. Don't forget there are 2 sensors you need to replace the 2 wire pcm sensor. This pic may help.

 
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Old Jan 7, 2012 | 12:47 AM
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Thanks for the input Crazy. Yes the first probably is the disconnect to the PCM because I did do that. Temp sensor not correct would explain why when I put the heater under the hood when it was so cold the truck started properly, but it is not consistant. Interesting when we went out this afternoon I got the same reading on the 89. Yep I had cleaned the batteryterminals and theengine was cold. 89 started right up and after returning home I retested and only got a 55. Thanks again.
 
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