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Message Forums Car Stereo Message Forums > Other Mobile Electronics > ECU affected by alarm. WHY????
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Puppeterr
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 ECU affected by alarm. WHY????

anyone have ECU problems on misubishi when installing alarm. i connected an alarm then the car wouldnt start any help????

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New Post 11-20-2006 01:14 AM
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salcedohumberto
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 RE: ECU affected by alarm. WHY????

quote:
Originally posted on 11-20-2006 by Puppeterr
anyone have ECU problems on misubishi when installing alarm. i connected an alarm then the car wouldnt start any help????

what year and model is that mitsubishi? what alarm are you trying to install?

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New Post 11-20-2006 10:44 AM
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Puppeterr
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 RE: RE: ECU affected by alarm. WHY????

quote:
Originally posted on 11-20-2006 by salcedohumberto
what year and model is that mitsubishi? what alarm are you trying to install?

01 Galant, its loosing ign power dont know why

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New Post 11-21-2006 03:55 AM
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salcedohumberto
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 RE: RE: RE: ECU affected by alarm. WHY????

quote:
Originally posted on 11-21-2006 by Puppeterr
01 Galant, its loosing ign power dont know why

but the car wont start at all? or it wont remote start?

i dont see any special notes on the ignition of that car, in fact it dosnt require any 2nd or 3rd ignitions.

it does require a Key-Sense Wire that should be getting Ground when Remote Started, that may be your problem because from factory it has a kill switch, and you should connect that keysense to the Status Output (-) of the Alarm when remote started. that wire on the car should be Blue/Red at the Steering Column, and you should also connect the Factory Arm & Disarm wires to the alarm

ive seen some problems with people installing alarms and/or amplifiers in cars that have most of the ignition circuits controlled by the computer of the vehicle, because theyr so fragile any spark or short or any inproper connection of some wires going to it, to fry those modules.

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New Post 11-21-2006 10:30 AM
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Puppeterr
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the 2000 and later Galants are equipped with a Transponder Micro Chip Key, with its patented Immobilizer system just like the evo's, what happened was we wires it without knowing that info on this and now the ECM is messed up did have the key sense wired but that wasnt the problem, i now need a new ECM and Immobilizer unit about $1500 in the trash

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New Post 11-23-2006 03:37 AM
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chiefaudiophile
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Directechs has that labeled as a U. How did you integrate into the ECU?

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New Post 11-23-2006 11:39 AM
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Puppeterr
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 RE:

quote:
Originally posted on 11-23-2006 by chiefaudiophile
Directechs has that labeled as a U. How did you integrate into the ECU?

turns out one of the wires that is a similar color of the door trigger wire was some how connected to the ECU transmission control and with a little current through dome light supervision the ECU was fried.

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New Post 11-24-2006 12:59 AM
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chiefaudiophile
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I hope your shop can obsorb the hit.

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New Post 11-24-2006 04:12 AM
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Puppeterr
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 RE:

quote:
Originally posted on 11-24-2006 by chiefaudiophile
I hope your shop can obsorb the hit.

not as bad as an EVO ecm thats worth more, i found the parts at a salvage yard for 150 hey the customer will never know :) anyways do you remember the remote start days when bypass wasnt necesary man those days were good, i remember my first window roll up with eight relays man that was nice

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New Post 11-24-2006 04:36 AM
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chiefaudiophile
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quote:
Originally posted on 11-24-2006 by Puppeterr
not as bad as an EVO ecm thats worth more, i found the parts at a salvage yard for 150 hey the customer will never know :) anyways do you remember the remote start days when bypass wasnt necesary man those days were good, i remember my first window roll up with eight relays man that was nice

And no voltage limiter? That's how people get hurt.

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New Post 11-25-2006 08:13 AM
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Puppeterr
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 RE:

quote:
Originally posted on 11-25-2006 by chiefaudiophile
And no voltage limiter? That's how people get hurt.

Oh i know those relays can smoke up a storm, i dont do that anymore that was like seven years ago :)

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New Post 11-29-2006 12:15 AM
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