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Previous Thread Next Thread Print Thread Rate Thread why do I have engine codes but no check engine light? #886923 05/22/08 03:46 AM Joined: Feb 2002 Posts: 104 lost in Canada qc guill OP Wheeler HI I jumped the diagnostic plug today and found codes: 24-25-26-31-51!!! Why do the check engine never light up when I'm driving the truck. I unplugged the battery for half hour to be sure to reset every thing. Still the same codes. Help the truck run not so bad (at least for 313k) thanks Guill 88 4Runner 22RE 4x4 Montreal Canada www.hexcostainless.com/images/fart.gif Re: why do I have engine codes but no check engine light? [Re: guill] #886924 05/22/08 03:50 AM Joined: Jan 2000 Posts: 12,153 N. California. USA 4Crawler Web Wheeler Only hard errors will keep the CEL on all the time. Many intermittent codes only flash the light (when the problem happens) and stores the code for later retrieval. But they should clear with the battery disconnected, maybe there is a problem with the ECU's trouble code memory. r.c.brown@ieee.org TruckEditor@tlca.org Project: 4Crawler 4Crawler OffRoad - 4x4Wire discount code Re: why do I have engine codes but no check engine light? [Re: 4Crawler] #886925 05/23/08 04:00 AM Joined: Feb 2002 Posts: 104 lost in Canada qc guill OP Wheeler sorry. I forgot to tell that I ran the truck a bit after I pull the battery off. <img src="/forums/images/graemlins/rolleyes.gif" alt="" /> But I still didn't see any check engine light. Is't more precise? <img src="/forums/images/graemlins/confused.gif" alt="" /> Guill 88 4Runner 22RE 4x4 Montreal Canada www.hexcostainless.com/images/fart.gif Moderated by  4Crawler, 4x4Wire, kewlynx  Hop To Mitsubishi Forums ------  Mitsubishi 4x4 and SUV Tech  Mitsubishi Diesels  Mitsubishi ArchiveToyota Forums ------  Early Toyota Trucks  Toyota 4Runner, FJ Cruiser &...  T100 & Tundra Forum  Tacoma Forum  Toyota Tech ArchiveJeep Forums ------  Jeep Talk  Jeep TechIsuzu Forums ------  Isuzu 4x4 & SUV Talk  Isuzu 4x4 & SUV Tech  Isuzu DieselsKia Forums ------  Kia Talk  Kia Sportage & Sorento TechOff Topic Chat ------  4x4 Gallery  Off-Topic Chat  Recreational Access & Land ...  Politics4xForums ------  Outdoor Gear  General 4x4 Discussion  Tools and Fabrication  General Communications  Amateur Radio  GPS and MapsParts Bin ------  Private Party - Garage Sale  Private Party - Items wanted  Vendors, Hot Deals, Group Buys4x4Wire Back Yard ------  Suzuki Forum  AZ Crawler Crew  Cal-Nev Crew  General Ford 4x4 & SUV Forum  General Dodge 4x4 & SUV Forum  General Chevy 4x4 & SUV ForumFeedback & Testing ------  Problems, Questions, Suggestions4x4Wire Staff ------  Forum Moderators  Problem Threads Print Thread Switch to Threaded Mode 5 Excellent 4 Good 3 Average 2 Bad 1 Terrible View Profile Private Message Follow User Forum Posts View Profile Private Message Homepage Follow User Forum Posts View Profile Private Message Follow User Forum Posts

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