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Car Forum / Driving, Maintenance, Tuning / Maintenance and Repair / April 2007check engine light/missing/possessed???
i have several questions. so if anyone out there can help please do.... this site has been very helpful in the past... here i go..... the Check engine light is one.. it is reading that its running lean. Reads that the primary circuit is not running at peak current for the max dwell time. Its not running on all six cylinders. the computer reads that the left bank is running too lean, and the right bank is running too rich too comprinsate. the car misses when its ideling. But when your driving it, it misses and then the cruise control truns on and off really fast and the door all lock. (as if someone hit the power lock switch) Also when it misses it clears out the computer like you turned off the car. Because it clears it out, it wont allow the computer to enter "learning mode" in order to find out why the mixture is off. Also the turn signals wont work at all. they wont come on. The fuse is not burned out either. It also says there is a bad positive battery connection. the battery amps are reading fine. and the ground is fine going to the engine and altinater. if anyone knows anything at all as to what this could be please help. i also half wondered if it could jsut be a short in the computer and if i replaced the computer would this be better. any suggestions would be great... thanks, >i have several questions. so if anyone out there can help please do.... >this [quoted text clipped - 30 lines] > the computer would this be better. any suggestions would be great... > thanks, How about a little more information first. Let's start with vehicle YEAR, MAKE, MODEL, ENGINE SIZE . Then you can give us the trouble codes, by number, and a description of the problems you are having. It may also help you mention what, if any, work has been done to try and correct the problem. You mention a bad positive battery connection above. I would suggest that you clean the battery cables and posts before you do anything else as that may be causing all your problems, depending on how dirty they are. ok i am so sorry about that, its a 96 dodge intrepid. 3.3 the battery post has been cleaned and the amps have been checked, the codes were 51 and 43. i took the car in and had it read on a computer and thats were we found that the the left bank is running too lean, and the right bank is running to rich to compinsate. But the guy who checked it on the computer said that each time the car misses and the lights flash on and the doors look it clears out the computer. apparently at that point the computer should go into "learning Mode" to say what the problem is , but because the car keeps doing that they are unable to read what the problem is. its almost as if the car keeps shutting off the computer. he said he had never seen this before. other than this nothign else has been done. thanks for your help. any ideas??? >>i have several questions. so if anyone out there can help please do.... >>this [quoted text clipped - 10 lines] >you clean the battery cables and posts before you do anything else as that >may be causing all your problems, depending on how dirty they are. > ok i am so sorry about that, > its a 96 dodge intrepid. 3.3 > the battery post has been cleaned and the amps have been checked, Did you clean the other end of both cables ??? Remeber each cable has two ends and they both need to be clean and tight. > the codes were 51 and 43. You need the P codes to diagnose the 43 code properly. The P codes started with OBDII and are in the Pxxxx format. You need the P code to pinpoint what the 43 code means. It does not cross directly over from the Pxxxx code. i took the car in and had it read on a computer > and thats were we found that the the left bank is running too lean, and > the > right bank is running to rich to compinsate. The right bank will not run rich to compensate for the left side. The left and right banks work independently from each other. But the guy who checked it on > the computer said that each time the car misses and the lights flash on > and [quoted text clipped - 3 lines] > is. > its almost as if the car keeps shutting off the computer. If the above is true then how did you get the trouble codes you posted above ? The problem you describe is battery voltage or ground being removed from the computer. When you remove power from the computer it clears the memory so that any stored codes are erased. I would suspect a bad ground. There are various ground wires on a vehicle. You mentioned earlier that you had other electronic items that messed up when this happened ( cruise control and door locks ). You need a wiring diagram to see if all three circuits ( cruise, locks, PCM ) share a common ground or power supply. You will then need to check those circuits for a poor connection. he said he had > never seen this before. other than this nothign else has been done. > thanks for your help. any ideas??? If the guy working on your car told you he had never seen this before you need to find someone with some experience with this type of problem if you expect to get your car repaired. You need someone with electrical and driveabilty experience. >>>i have several questions. so if anyone out there can help please do.... >>>this [quoted text clipped - 13 lines] >>you clean the battery cables and posts before you do anything else as that >>may be causing all your problems, depending on how dirty they are. well i am hoping we may have fixed the problem as far as the missing and the check engine light coming on and off, and the cruise light, and the locks. we replaced the egnitions switch last night on the car and it appears to be running fine, without missing and yesturday before we did this, all i had to do was drive the car for not even 10 mintues and it was missing really bad. Hopefully now they will be able to hook the car up to the computer long enough for it to read what is going on now that the car is not missing so much. so far today it has been drove over 40 mintues and no missing. however the turn signal still does not work from the inside or the outside. and the flashers still will not come on at all. you dont even hear the clicking at all. already replaced the fuze, could this be the flasher? been told by several people at parts places that if the lights wont even come on it Cant be the flasher, then others say yes it can? any idea. just dont want to continue dumping money into the car for soemthing it doesnt need. we still do have to clean the other side of the cables. maybe that will make a difference. if you have any ideas on the turn signal that would be great. thanks for all your knowledge. >> ok i am so sorry about that, >> its a 96 dodge intrepid. 3.3 [quoted text clipped - 49 lines] >>>you clean the battery cables and posts before you do anything else as that >>>may be causing all your problems, depending on how dirty they are. > well i am hoping we may have fixed the problem as far as the missing and > the [quoted text clipped - 12 lines] > and the flashers still will not come on at all. you dont even hear the > clicking at all. already replaced the fuze, There are two fuses feeding the flasher, did you check them both ?? One is a 20 amp, the other is a 10 amp. could this be the flasher? been > told by several people at parts places that if the lights wont even come > on > it Cant be the flasher, then others say yes it can? any idea. Yes, a bad flasher can be the cause of your problem as well. Did you check to see if the 4 way flashers work ? just dont > want to continue dumping money into the car for soemthing it doesnt need. > we still do have to clean the other side of the cables. maybe that will [quoted text clipped - 60 lines] >>>>that >>>>may be causing all your problems, depending on how dirty they are. > above ? The problem you describe is battery voltage or ground being removed > from the computer. When you remove power from the computer it The problem as described is also consistent with a momentary short that's enough to brown out the computer but not enough to blow a fuse. This might be caused, for instance, by a single conductor of a stranded cable brushing some adjacent component. Ok so as you can tell i do not have a lot of knowledge regarding anything electrical on the car. i do the best i can but still do a lot by following the book i bought for the year and make of my car. I have changed out the fuse , the ignition switch, and the Flasher already and it still does not work. And no the 4 way flasher does not work either. Do you know where i can find out where the 20 amp fuse? in the book it only list a 10 amp fuse and that is the one that i changed. Or do you happen to know the number to the 20amp fuse? All it listed in the book was the 10amp fuse that was running the turn signals and where it was located. If you have any clue i will check that first then i think my last resort will be taking it in and having it looked at tomarrow. so if you can tell me about the 20amp fuse i will check that out today, and if that does not work then i will be forced to take it in. i hope to hear from ya before the end of the day thank you so much for all your help >> above ? The problem you describe is battery voltage or ground being removed >> from the computer. When you remove power from the computer it [quoted text clipped - 3 lines] >This might be caused, for instance, by a single conductor of a >stranded cable brushing some adjacent component. >Ok so as you can tell i do not have a lot of knowledge regarding anything >electrical on the car. i do the best i can but still do a lot by following >the book i bought for the year and make of my car. Now is a good time to learn, then. >I have changed out the >fuse , the ignition switch, and the Flasher already and it still does not >work. You can't fix things just by swapping everything out. It will take forever. You have to do actual diagnosis and that means buying or making a test light or meter and finding out where the voltage is. If you don't have voltage on any pins of the flasher, you need to find where the flasher gets the power from, and the diagram in the book will probably tell you (although if it's a third-party manual it should be taken with a grain of salt). Follow the wire to the flasher to its source, and see if THAT has power.... work your way up the chain until you find where the circuit is broken (or until you get to the battery). And no the 4 way flasher does not work either. Do you know where i can >find out where the 20 amp fuse? in the book it only list a 10 amp fuse and >that is the one that i changed. Or do you happen to know the number to the >20amp fuse? All it listed in the book was the 10amp fuse that was running >the turn signals and where it was located. Is there voltage on both sides of that 10amp fuse? Measure it and see. If there isn't, get the wiring diagram from the back of the book and trace it upwards... on some cars, that power comes from the a relay or from the ignition switch and wires and connectors can break. --scott  Signature"C'est un Nagra. C'est suisse, et tres, tres precis." |
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