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1990 deluxe 4x4 codes

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Old Feb 8, 2010 | 06:16 AM
  #1  
nitewing's Avatar
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From: Des Moines, Iowa
Angry 1990 deluxe 4x4 codes

OK I have used a paperclip in the diagnostics box and counted the codes on the check engine light. I cannot figure out what to do to find ou twhat they mean... it blinked 2 times then pause then 4, then long pause then 2 then 5, then long pause the 2 then 6, then long pause then 3 then 1 so if I understand this correctly is this 4 separate codes? 24, 25, 26, 31? or is it a long code with different #'s? can anyone help me to figure out where to read up on this? or at least let me know what the codes mean? THANK YOU!!!
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Old Feb 8, 2010 | 06:18 AM
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From: Des Moines, Iowa
oh yeah this is a 22R-E, automatic if it matters
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Old Feb 8, 2010 | 06:28 AM
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From: virginia beach, va
youve got the code reading right. just search in the fsm for the code meanings,it at the top of each section.
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Old Feb 8, 2010 | 06:29 AM
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I no longer have a service manual... lost in the mud? snow? somewhere...
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Old Feb 8, 2010 | 06:32 AM
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http://www.4crawler.com/4x4/CheapTri...CheckConnector
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Old Feb 8, 2010 | 06:37 AM
  #6  
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From: Parker, CO/Newnan, GA
It would be the 4 codes and they would mean; Code 24 Intake air temperature signal fault, Code 25 Air/fuel ratio LEAN, Code 26 Air/fuel ratio RICH, Code 31 Air flow meter circuit or Vacuum sensor signal fault
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Old Feb 8, 2010 | 06:44 AM
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Thank you for your assistance everyone. would the air flow sensor throw codes for air fuel mixture? why would it read both lean and rich? I already figured I wold have to change the air flow sensor. is there a fuel mixture sensor I should look at also?
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