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Thread: My carputer broke my car...

  1. #1
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    My carputer broke my car...

    The setup -

    Carputer with Opus 90W DC - DC is hooked into the car via three wires -

    Ground to Chassis
    Hot directly to battery
    Trigger tied into ignition wire

    Shortly afterwards, my check engine light decides to come on.

    A few weeks later, the car decides not to turn over sometimes when I turn the key. Eventually, if you turn the key or hold it in the IGN position long enough, the vehicle turns over.

    Car is a brand new 2004 MB Sprinter.

    My "friends" at the dealership seem to have replaced half the car already - the ignition block, and now the actual engine control computer.

    I'm sure they're going to try to blame this all on the Carputer installation.

    Any thoughts from you guys before I head down to pick the car up? Could I have actualyl caused all this damage?

    Thanks!

    David

  2. #2
    FLAC Chairboy's Avatar
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    Is your carputer plugged into your OBD-II port? Try unplugging that. The EXACT SAME THING happened to mine, and it was some wacky thing to do with the ECU and the OBD-II interface.
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  3. #3
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    Nope - the only connection to the car is through the three power related wires I listed above. And the AUX input of the radio.

  4. #4
    Raw Wave EsKALad's Avatar
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    i dont think its related.

  5. #5
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    its not related to the check engine light.
    Is this where the witty comment goes?
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  6. #6
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    There is no way this is related. Could just be bad American car engineering....

    You bought a new lemon most likely.

    If you fused the battery connection and used decent gauge wire (an Opus 90W really can get away with using even 12 AWG or 14 AWG) then there's no reason why it would do that. a 90W opus PSU is not going to cause alternator or battery problems. Now a 2500W system might...

    Keep in mind that it is also ILLEGAL for a dealship or company of ANY product to void you warranty for using an aftermarket part in a vehicle. This is called the Magnusum-Moss Warranty Act. It makes it illegal for manufacturers to void your warrant because of the use of an aftermarket part. It basically tries to eliminate the stranglehold that factory manufacturers had on car buyers who tried to get better/cheaper service at another shop for warrant repairs.

    The only way they can void a warranty is only on piece-by-piece restrictions. For example - If you modify your transmission and place in a high stall torque converter, a shift kit and some other goodies - they can only void your warranty on your transmission, NOT your engine or A/C system for example.

    Sue them if they refuse to work on it claiming the warranty is void. Embarass them by calling the media and also complain to the Better Business Beareau and AAA.

    I had a dealship attempt to void my safety recall work because I have a system installed in my car. I showed them the MM Warranty Act off of the Internet and they shut up and did the work after reading it for about 5 minutes.

    -LAKORAI

  7. #7
    Banned xdjxklusivex's Avatar
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    Quote Originally Posted by lakorai
    There is no way this is related. Could just be bad American car engineering....

    You bought a new lemon most likely.

    If you fused the battery connection and used decent gauge wire (an Opus 90W really can get away with using even 12 AWG or 14 AWG) then there's no reason why it would do that. a 90W opus PSU is not going to cause alternator or battery problems. Now a 2500W system might...

    Keep in mind that it is also ILLEGAL for a dealship or company of ANY product to void you warranty for using an aftermarket part in a vehicle. This is called the Magnusum-Moss Warranty Act. It makes it illegal for manufacturers to void your warrant because of the use of an aftermarket part. It basically tries to eliminate the stranglehold that factory manufacturers had on car buyers who tried to get better/cheaper service at another shop for warrant repairs.

    The only way they can void a warranty is only on piece-by-piece restrictions. For example - If you modify your transmission and place in a high stall torque converter, a shift kit and some other goodies - they can only void your warranty on your transmission, NOT your engine or A/C system for example.

    Sue them if they refuse to work on it claiming the warranty is void. Embarass them by calling the media and also complain to the Better Business Beareau and AAA.

    I had a dealship attempt to void my safety recall work because I have a system installed in my car. I showed them the MM Warranty Act off of the Internet and they shut up and did the work after reading it for about 5 minutes.

    -LAKORAI

    good advice go get them *****s!! tell them to

  8. #8
    MySQL Error MatrixPC's Avatar
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    The way Opus install is exactly the same as installing an amplifier. There is NO WAY, it could cause damage to the car.
    There is 1 exception. Short circuit and you didn't fuse the IGN wire to Opus.
    I am sure you fused the hot wire, but did you put a fuse on the IGN wire to Opus? If you connect Opus to the IGN wire and didn't put a fuse, a short circuit on Opus or PC (scrap metal touch contact point for example) could cause the car ECU to blew up (posible but not a few week later).

    I know not that many people fused the IGN wire when hookup the PSU cuz most will use the ACC wire instead of IGN wire. The ACC wire in the car is fused but the IGN and the car ECU is on the same circuit.

    I think you bought a lemon. Before going down the dealer ship, get a copy/print out of the Warranty Act to save some talking. Another point regarding to lemon law is that if they can't fix the same problem 3 times, they have to buy the car back from you. Anyway, that is for US/Cali. I am not sure anywhere else and I am not a lawyer so don't quote
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  9. #9
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    Quick question -

    It may have been the ACC and not the IGN line I touched.

    I suppose I don't know. The carputer power up when I switch the car to the position it sits in when running - IE: I can turn the carputer on without starting the engine.

    That would be the ACC line, yeah?

    Thanks for all the great info - you guys rock!

    David

  10. #10
    Low Bitrate homchz's Avatar
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    Quote Originally Posted by lakorai
    There is no way this is related. Could just be bad American car engineering....
    2004 MB Sprinter??

    Wouldn't that be bad British Car Engineering?

    None the less. I see no way all those issue could be due to a car computer that is no rea tie into the electrical system.

    The only place it is tied in would be the switched, so maybe just put in a home made rocker switch off the battery to disconnect it from the car 100% and see if anything changes.
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