Testing 808 w/o engine/car -- was cooked VN

[Roger Merritt]

Wes,

Conect the +ve wires to the battery and all earth conections to -ve, find 
the igntion wire on the relay and connect it to positive, you will need to 
make a test light out of a led and a resistor I think 800 ohms approx from 
memery should be fine, then conect it up as a test light see wiring diagram. 
  Then invoke the test mode by shorting the terminals in the diagnostic 
link(forgotten the colors) and if every thing tests fine you should get a 12 
that is one flash 1 sec gap followed by 2 flashes and repeated 3 times.  If 
this works out ok I would suggest your ecu is fine

Roger


>From: "Wes Branchflower" <hemi_265 at hotmail.com>
>Reply-To: gmecm at diy-efi.org
>To: gmecm at diy-efi.org
>Subject: Re: Testing 808 w/o engine/car --  was cooked VN
>Date: Thu, 01 Feb 2001 03:23:27 +1100
>
>that makes me breathe a little easier.
>Their was no smoke. i opened up the ECU and found nothing looking visibly
>burt/melted. No bad smells either. It was just the loom, no radio luckily 
>:)
>I was going to say 'how stupid am I' but then, this stuff happens to
>everyone once in a while. It was a battery with non colour coded
>terminals... allways though they were made for people who didn't know what 
>+
>and - was hehe..  If it had of been colour coded red.... ;)
>-----------------------
>
>Ok, also, i wondering how i can test the 808.
>I have all the engine sensors + a fuel pump.
>I was thinking i can just connect up the ECU's power pins, and 'check
>engine' light. If i then if i apply 12v to the 'ignition on' pin, i should
>get a check engine light? (if no sensors are connected?)
>
>Thanks.
>
>
>
>>From: DC Smith <morepoweral at tetranet.net>
>>Reply-To: gmecm at diy-efi.org
>>To: gmecm at diy-efi.org
>>Subject: Re: cooked VN
>>Date: Tue, 30 Jan 2001 23:21:03 -0600
>>
>>Hi Wes,
>>  There are a few diodes inside the box that *should* help with reverse
>>polarity.
>>I hooked up the battery backwards in my 85 442 once, and all it did was 
>>fry
>>the
>>radio, which I fixed. I hope you were just as lucky as I was.
>>
>>Wes Branchflower wrote:
>>
>> > I have the entire engine bay loom + sensors + the little bit more loom
>> > inside that connects it to the ECU). I somehow managed to stupidly
>>connect
>> > it in reverse polarity, even though i usually check my connections 
>>twice
>>:(
>> > There was no smoke or noise or anything.
>> > How can i check that the ECU isn't fried? Is there any reverse polarity
>> > protection?
>> > Thanks.
>> >
>> > >From: "Allan Langford" <allanlangford at yahoo.com>
>> > >Reply-To: gmecm at diy-efi.org
>> > >To: <gmecm at diy-efi.org>
>> > >Subject: Re: CSH, HQ on the Road? (cooked vn...)
>> > >Date: Tue, 30 Jan 2001 23:03:11 +1100
>> > >
>> > >Was it the smoke coming form the ecu and other sensitive electronic
>>devices
>> > >that alerted you to the fact that you connected it the wrong way? if
>>not
>> > >and
>> > >still runs ok your lucky :)
>> > >
>> > >Regards,
>> > >     Allan Langford
>> > >
>> > >----- Original Message -----
>> > >From: Wes Branchflower <hemi_265 at hotmail.com>
>> > >To: <gmecm at diy-efi.org>
>> > >Sent: Tuesday, January 30, 2001 10:41 PM
>> > >Subject: Re: CSH, HQ on the Road?
>> > >
>> > >
>> > > > AHH!! I connect my vn series 2 battery terminals back to front!
>> > > > would this have caused any damage to anything?
>> > > >
>> > > >
>> >
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>>--
>>***********************************************************************
>>Dan Smith      84 Regal   11.841 at 115.09     GSCA# 1459
>>St.Charles, Missouri
>>mailto:morepoweral at tetranet.net
>>http://www.tetranet.net/users/morepoweral
>>Owner of the spittinest, pukinest, nastiest running, converted
>>hot air turbo regal on the planet.
>>***********************************************************************
>>
>>
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