Check Engine Light No Error Codes
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Login Register OBD Codes Forum Other OBD-II Code Reader Discussion/Support Search Check Engine Light ON, but no Code stored Post Reply Print view Search Advanced search 8 posts • Page 1 of 1 crwlrjeff Posts: 2 Joined: Sun Oct 07, 2007 11:30 am Check Engine Light ON, but no check engine light no codes stored Code stored Quote Postby crwlrjeff » Sun Oct 07, 2007 11:40 am I understand that codes
Check Engine Light No Codes Found
can be stored and extracted that DO NOT result in the Check light coming on, but can the Check light be turned on WITHOUT storing
Jeep Check Engine Light No Codes
a Code? Logic (my logic, of course) says that if the vehicle operator is going to be alerted to a fault, then a fault must exist. Therefore there can be no light without a code being generated. The same logic accepts that
No Check Engine Light But Have Codes
there can be faults that are not worthy of alerting the operator, and in such an instance there can be a stored code but no light. Under what circumstances can there be a Check Light but no stored Code? Thank you, Jeff Top Top Darkrooms ASE Certified Technician Posts: 1477 Joined: Thu Mar 29, 2007 9:44 am Quote Postby Darkrooms » Sun Oct 07, 2007 2:33 pm The MIL or check engine light illuminates ONLY when there is an emissions failure. It is possible check engine light but no trouble code to have a code stored without a check engine light, but it is not possible to have a check engine light without a code. Emmission failures are any failure that increases the car's emissions beyond the EPA's allowable specs. Hope this helps. Top jeff compton Posts: 7602 Joined: Tue Jan 10, 2006 2:09 pm Location: Kingston Ontario Canada Contact: Contact jeff compton Yahoo Messenger Quote Postby jeff compton » Mon Oct 08, 2007 6:32 am yeah if a light is on but you're not getting a code it's normally a software issue with the scan tool or a cheap code reader vs a professional level scanner! if the light's on something is there! Top legrosteve Posts: 2 Joined: Thu Mar 05, 2009 11:21 am Re: Check Engine Light ON, but no Code stored Quote Postby legrosteve » Thu Mar 05, 2009 11:42 am I have a 2000 Jeep GC that the ck engine light is on. When I try to read the code with an ELM adapter to my laptop I do not get any stored codes. If I do the ignition on off three times it does not display a code on the dash. I have even left the battery unpluged overnight and the light come on instantly when starting the car.The light came on when I was coasting downhill and turning the ignition off to save on gas.Is their adapters that will read more codes then the cheap ones that is affordable to the weekend mechanic? Top
When I inspected the car before purchase I noticed that there was black soot in the exhaust pipe. The owner told me that he'd put a cat back exhaust but I suspected I'd probably be replacing check engine light but no fault codes the O2 sensors soon and we negotiated the price accordingly. So now it's a month check engine light on but no codes honda later and I bought an OBD II checker. I followed the instructions and after the checker and the cars ECU linked it showed check engine light stays on no codes no stored codes. I turned off the CEL and we went shopping. Mid way on the drive home, we live out in the country, the CEL came on again. Went through the procedure again, still no codes stored. https://www.obd-codes.com/forums/viewtopic.php?t=2637 I've read the instruction manual twice and I don't think I'm doing anything wrong. Is it possible to have a check engine light on and there to be no codes stored for the OBD tester to find? I could have bought many rolls of black tape for what the tester cost and I kept the receipt just in case. the_same_mountainbik 2015-08-16 01:33:36 UTC #2 I've never heard of it, but apparently it's possible...... { I commend http://community.cartalk.com/t/check-engine-light-on-no-codes-stored/90912 you for checking the car out thoroughly before buying, but soot on the tailpipe of a 12 year old vehicle would not bother me unless it were extreme, like creeping up the paint. All aged engines put out some level of soot, even if miniscule, and it can build up over the years. You were absolutely smart to negotiate a new catback system because of it, however. It builds up on O2 sensors and converter catalyst too. My recommendation would be to get it checked at a reputable independently owned and operated shop. It'll probably run about a hundred bucks (one hour shop time, often a minimum charge), but their equipment is generally much better than the average homeowner's. Let us know how you make out. We do care. Tester 2015-08-16 01:41:20 UTC #3 My experience has shown that anytime a Check Engine light comes on, and there's no codes stored, there's problem with the computer. Let's face it, the computer is an emission control device and shouldn't do that. I've seen computers fail in all kinds of ways. Besides your description, the Check Light turns on, and there's ten different codes stored for different systems. Or, that as long as the Check Engine light is on the engine runs. But soon as the Check Engine light shuts off the engine shuts down. Tester db4690 2015-08-16 02
For Shop Owners RegisterSign InCancel Get Your Car FixedGet an EstimateFind A ShopWhy Certified? Learn About Your CarCar OverviewCommon ProblemsQuestionsRecallsReviewsFair Price EstimatesEncyclopediaCar Care Advice About RepairPalRepairPal OverviewTeamFAQPartnersNews http://repairpal.com/the-check-engine-light-is-on-but-there-are-no-error-codes-how-do-u-turn-it-off-976 & MediaBlogAdvertiseSupportContact UsRepairPal Get Your Car FixedGet an EstimateRepairPal uses national and regional data to ensure fair prices. Our Certified shops honor these estimates.Find a ShopRepairPal http://www.streetdirectory.com/travel_guide/56170/engine_oil/check_engine_lights_myths_and_facts.html certifies only the best shops in your neighborhood by verifying quality work, training, and customer satisfaction.Why Certified?Certified Shops honor fair price estimates, bringing trust and transparency to an check engine industry nottypically known for it.Learn About Your CarCar OverviewRelevant information about your vehicle, all in one placeCommon ProblemsReported by drivers like youQuestionsAsk a mechanic in our communityRecallsExplained by our expertsReviewsShared by vehicle ownersFair Price EstimatesFor thousands of car repairsEncyclopediaDefinitions of systems and partsCar Care AdviceTips for keeping your car healthySearch |For Shop OwnersSign inRegister< 2008 check engine light Dodge Durango QuestionsThe check engine light is on but there are no error codes. HOw do u turn it off on 2008 Dodge Durango Pulled the negative battery cable and then when we restarted the vehicle the check engine light remains on Asked by dsmohrm for the 2008 Dodge Durango in Columbus, NE on October 12, 2011 Upvote Follow this questionFlag inappropriate2 answers ANSWER by user91328, October 12, 2011if the light is on, there are codes. your code reader may not read them.You need a real shop with a real tech to check it for you. clearing it will do nothing. it needs to be diaged and repaired.Roy Upvote Flag inappropriateSign in to replyANSWER by patrick mannion of Greg Solow's Engine Room, October 12, 2011If the Check Engine Light/Service Engine Soon light illuminates while you are driving, the car's on board computer sees a fault in the engines management system that is causing an excess amount of pollutants to be emitted from your car. This could resul
Mileage Claims Planning Tools Jogging Calculator Linear Distance Analyse This Loc Business Finder Singapore Zones SD Food Advisor Singapore Images Singapore Hotels S'pore Travel Guide SD Shopping SD Real Estate - - - - - - - - - - - - - - - - - - - - Regional Services- - Currency Converter Forums Hotel Reservations SD Editorials Weather Travel Health Medical Cars Technology Home Family Business Interest Woman Currency Converter: Find Euro Currency, US & other currency exchange rates here! Travel Health Medical Cars Technology Home Family Business Interest Woman Editorials » Automobiles » Motor Oil Guide Check Engine Lights: Myths And Facts By: Theodore Olson You're driving along and suddenly your Check Engine Light comes on. What does it mean? Check Engine Light, Check Engine Soon Light, Service Engine Soon Light, Engine Light, Engine Management Light, "whatever" you want to call it, simply means that your vehicle's computer system has detected a problem.Depending on the year, make, and model, it may be related to the engine, the transmission, even the brakes and suspension. There are literally hundreds of reasons a Check Engine Light may appear. The following questions and answers discussion will clarify the truth about Check Engine Lights...Service Engine Soon Light FAQ:1) Can the car be driven?The general rule is: if the Service Engine Soon Light is on, and the car seems to be running ok, you can drive it. However, you should have it checked at your earliest convenience.If your vehicle is running poorly-bucking, stalling, hesitating, or you just don't feel safe, tow it. When in doubt always tow it!2) The check engine light went out by itself. Is it ok now?Probably not. Check Engine Lights often come and go. Even if the light is out, your vehicle's computer system will retain information that will allow the problem to be diagnosed. To avoid potential long term issues, get it checked out.3) My check engine light stays on. What should I do?If your check engine light stays on constantly, follow the instructions above, under "Can the car be driven?" Don't panic.4) Can I disconnect the battery, or pull a fuse to reset the service engine soon light?Maybe, but I wouldn't. Removing the battery cable or an ECM or PCM fuse may clear the code, but it is not universally recommended in the industry. Most manufacturers advise against it. See the Best Way to Res