Would my alarm system that is messed up right now make my feul pump not work? replaced motor worked b4 that. but ran rough because of the alarm i do beleive even pulled both horns plugs and the horn still sounds wats with these vw junkers
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Ok firstly even though it is a 2.4 motor and same year there are several variants on the theme you must make sure all the connectors match and wire colours match as some of these motors especially the top end and sports motors look the same but the wiring is not the same as to the harness you need to make sure they are not crossed or miss matched in connections to the harness one out of line will cause what you are experiencing.... Having said that and assuming everything matches perfectly and you not getting power coming from the blue wire is simply there is a break in the line somewhere... This could easily have happened on disconnection. One has to be careful not to stretch crimp or bend the harness wire connector ends as it will damage and looks like this is the case... so if you have checked the blue wire correctly and there is no reading on the amp meter testing the line then it is a break in the connection somewhere in the line... so did u take very good careful attitude when you disconnected the harness . Reason it is all taped and over the years of age the harness hardens so two do the coloured wires and especially near the connectors... so to me reading your notes then the blue wire has a break in it or the connection end has some dirt or other blockage which is a simple fix try an electrical connection spray first but for me it is a broken wire inside the blue wire sheilding
Why? I would not start messing with a factory ubit. It's highly recommended to leave it alone. I have 2 alarms on my car without any problems, the ford alarm can be integrated without any problems. Thos e factory alarms are a major part of your wiring system and can lead to a very big problem if you start changing them. And that leads me to ask why would you want to disconnect it in the first place? If it's acting up then look at the fuses and make sure they are all good and making good contact on the prongs. Make sure that all sensor contections are clean and plugged in completely making contact.
You can try the passenger side of the door to enable it, and disable it, that all you can do. Or if you know someone who know how to disable the alarm an auto electrician are the only one who know how, the only thing i will do is speak it and not give details first they cut the door alarm. they dont have too but sometimes autodoor lock get in the way. they jump the starter relay permanetly and its done I do this for customer left and right It faster and cheaper alarm are headache and the market to remove is big yours is easy its OBD1 . find a person who know his skill.
Is it an aftermarket alarm/starting system? If so it may be burnt out. Without the right bosch relays to hold the locks down for 3 seconds the sytem will burn out trying to lock and unlock due to the air pump sytem. They might have also messed with the stock alarm system if you have it on your model which would compound the problem. If the car starts at all I would look at replacing the coil and coil wires as they are some of the biggest contributors to poorly running MB's. Then I would check the fuel pressure, maybe replace the fuel filter and check valve as they can keep fuel pressure low. After that might be a bad ignition switch which I doubt but anything is possible. If you also have an aftermarket radio it is tied into the stock alarm and that may not help your issues either. Hope I have given you a good place to start.
First to turn off the alarm you simply put the key into the drivers door and turn it to unlock the door twice, this is the factory setting to turn off activated Volkswagen alarm. As for the power locks they are air activated, in the trunk near the latch there should be a small electric motor that drives a small air pump with air lines running to all your locks. If this electric motor as worn out your locks will not operate, simple fix replace the motor. I'd try a used one first from a scrap yard to make sure but always check to see if there is power to the motor (you will need another person with a test light to perform this job). Let me know if this works. Vdubs 4-ever !