so my battery decided not to take a charge on the way to work last night

got it jumpstarted drove home on the alternator this morning <yay chevy alternator>

 

got home but a battery in that needed charged accidently left the ignition on connected the charger and then went and plugged the extension cord in

 

came back to the car to hear the injectors fluttering ..great

changed batteys for a good charged one

tried to start it .. no worky

popped the cover on ms mmm roasted circuit board trace smell

sure enough 2 traces on the bottom of the board evaporated

gonna try and jumper wire bypass the traces.. it works well enough when i fixed otehr peoples botched xbox mod chip installs

no other components seem damaged

 

and it was a bad night at work on top of that .

Lesson to be learned: Disconnect battery from car electronics before charging a dead/bad/other battery.

 

I have been lucky so far. My misadventures have just been greeted by windshield wipers that start to work on their own.

 

Might want to put a "crowbar" circuit on that MS box. Or, for more finesse, a power-filter/voltage-limiter.

problem occurs when the old battery you knew one was good .. has gone dead and also reversed polarity

 

trying to fix the power supply section of the ms box

depressing

well off to work

problem occurs when the old battery you knew one was good .. has gone dead and also reversed polarity

 

trying to fix the power supply section of the ms box

depressing

well off to work

Power supplies are easy. Well, at least linear ones. One word: Reverse-polarity protection.

 

BTW, do you still have any old ECUs kicking around?

um yup i do the 85 rx's old ecu some 2wd non turbo ecu .. i think the ecu for a xt lying around

a chevy 4.3 ecu also around here somewhere

Sorry to hear of your misfortune. I burned up a new repro 1965 Buick Skylark GS engine harness with a bad battery. Jeez, the most acrid, breath-taking smoke ever. Engine fires are my favorite.

 

 

Don't know why you would need another ECU, rob circuits I would guess. I have a few Subaru turbo ECU's if your looking for something specific I may be able to help you out.

 

Most of the electrical jargon is over my head(I learn it as I need it)but I thought I'd kick you some sypathy.

 

Jay

...Don't know why you would need another ECU, rob circuits I would guess. I have a few Subaru turbo ECU's if your looking for something specific I may be able to help you out...

The point is that oddcomp doesn't even have a Subaru ECU... he doesn't need one anymore. So I figured that he has a couple unneeded ones lying around. I don't need one either, but was interested in one to play with (other than the 3 or 4 in my parts cars, which would take some miniscule effort on my part to remove.

Pm'ed you Northwet.

 

 

Jay

so yeah i have a few i have no use for except to potenially pilfer parts from

let em know what one you want to tinker with .. why are you going to try and disassemble the ecu code? and look for a way to reprogram it?

One thought (championed by someone else) was to disassemble/reverse-engineer the code. I had a thought to try a plug and play controller using the ECU box and connectors.