Just Fried My Megasquirt

[pugpete1108 62 1 Cars]

Somehow this morning I managed to swap the coil driver and +ve cables over without noticing

 

when cranking I could smell electrical burning, opened the ecu lid and there it was char grilled, not sure what circuit it was?but it's started to melt the 37 pin connector and completely fried the component that sits next to it, jut hoping that's all the damage but knowing my luck it's poggered.

 

If so that's it I'm gone, Fu##ing 205 I hate it I'm gonna buy a golf instead

[wracing 19]

take a pic and post please, gutting man i was hoping that you would get this going soon!!

 

james

[madspikes 41 1 Cars]

It might be as bad as you think. If its drawing that much current to met the connector, its probabably just isolated to the 37 way....

 

Keep the faith, I've had may set backs with my pug, but as soon as I drive it, all is good! Just removing the car cover gives me a warm feeling about it.

 

Mad.

[pugpete1108 62 1 Cars]

i'm gonna send the unit back to phil (who built it) and see what the damage is

 

anyway here's a couple of pics:

 

 

what do you think?

[wracing 19]

thats impressive. the board may be f***ed thats got to be 100amp+ to do that. hopefully youll be able to retrace in copper wire and it wont have affected the processor.

 

good luck

 

james.

[wracing 19]

i think the ic next to the burnt device will also have had it. glazing usually means it overheated.

 

james

[pugpete1108 62 1 Cars]

balls.

 

like i said before mate if the board has had it then its bye bye from me, i've had enough

[EdCherry 34 1 Cars]

balls.

 

like i said before mate if the board has had it then its bye bye from me, i've had enough

 

Bollocks to that, s*it gets you down but finish the project or you WILL regret it. Take a break from working on it for a while and then jump straight back in!

[madspikes 41 1 Cars]

That a great effort, I was expecting it to look worse! You must have dropped the full load of the battery across that transistor! The board doesnt look that bad, I'm sure it can fixed.

 

If you have a car that you 'play with' there are always going to be bad times doesnt matter if its a pug or a vw..... but just got to look towards the the good times.....

 

Like football (personally I dont understand nor care about the silly game) sometime your team wins then sometime they lose for the whole season, but people keep the faith and stay with their team.

 

Mad.

[Tom Fenton 1,524]

Its not the 205's fault you shorted out your ECU................

[sub205 5]

you can be happy that you only fried your igbt!

this part is cheap.

 

looks like you have wrong ignition settings (to high dwell or wrong invert-settings for ignition output!)

 

you can hook up a cable to the input of the igbt and use a normal ignition module like normally used in the 205!

[pugpete1108 62 1 Cars]

That a great effort, I was expecting it to look worse! You must have dropped the full load of the battery across that transistor! The board doesnt look that bad, I'm sure it can fixed.

 

If you have a car that you 'play with' there are always going to be bad times doesnt matter if its a pug or a vw..... but just got to look towards the the good times.....

 

Like football (personally I dont understand nor care about the silly game) sometime your team wins then sometime they lose for the whole season, but people keep the faith and stay with their team.

 

Mad.

 

would reversing the coil cause this then? and i know what you mean but i havent even driven a 205 if three years or so, so its a little hard to keep the faith

 

Its not the 205's fault you shorted out your ECU................

 

when you put it like that.......maybe i should just sell myself off and take up a new hobby like flower arranging or something

[pugpete1108 62 1 Cars]

you can be happy that you only fried your igbt!

this part is cheap.

 

looks like you have wrong ignition settings (to high dwell or wrong invert-settings for ignition output!)

 

you can hook up a cable to the input of the igbt and use a normal ignition module like normally used in the 205!

 

i had spark inveted and dwell settings of:

 

cranking 8.0

running 3.3

discharge ?? cant remember

 

i have no dizzy so that really isnt an option

[taffycrook 2]

One of the reasons why Ford put fuses in the ign circuit.

They are one of only a few who do, but it could be a good lesson to all.

 

Try not to lose faith, it will be worth it in the end, just picture yourself at the lights or on the best b road in you local area, grinning as you gun the little french car away.

[pugpete1108 62 1 Cars]

One of the reasons why Ford put fuses in the ign circuit.

They are one of only a few who do, but it could be a good lesson to all.

 

Try not to lose faith, it will be worth it in the end, just picture yourself at the lights or on the best b road in you local area, grinning as you gun the little french car away.

 

i'm thinking 'if' i carry on with it i'mgonna put two fuses in the driver cables just in case.

its got a 15a fuse on the 12v feed but this didnt even blow??

[Saveit 0]

Ive got one for sale if you need a new one mate. Can do a good price.

[omega 82]

saveit

thats the great thing about this forum help and advice

[taffycrook 2]

i'm thinking 'if' i carry on with it i'mgonna put two fuses in the driver cables just in case.

its got a 15a fuse on the 12v feed but this didnt even blow??

 

Thats because the power came from the coil supply not the ECU, its this/these wires you need to fuse, 15A should be ok, but carry spares in the glove box.

[pugpete1108 62 1 Cars]

Thats because the power came from the coil supply not the ECU, its this/these wires you need to fuse, 15A should be ok, but carry spares in the glove box.

 

yeah i get ya, the fuse was before the bump in current doh

 

that one will just protect the coil

[wracing 19]

from what you said about swaping wires it sounds like you've basically connected the battery directly to ground a setting change will not affect this!

 

ive ran your setting for about 4000 miles now on my 205

 

james

[pugpete1108 62 1 Cars]

good news

 

phil from extra efi just emailed me to say the unit has been fixed and will be back with me shortly.

 

so i can get back on with not getting it to run

[EdCherry 34 1 Cars]

good news

 

phil from extra efi just emailed me to say the unit has been fixed and will be back with me shortly.

 

so i can get back on with not getting it to run

 

Good!

 

Dont break it this time!

[madspikes 41 1 Cars]

You see it wasnt that bad! The MS has been designed quite well, and does stop people killing it but doing some stupid things.

 

My tip in getting any car running on a MS is take you time, take one step at a time and check everything as you go.

 

Mad.

[pugpete1108 62 1 Cars]

cheers guys, phil said i burnt out both ignition drivers so he has replaced both with thw newest versions which apparently wont burn out IF i do it again

 

yeah i'm going to get my rear beam rebuilt and then fix the sagging front suspension, and get the underside rust proofed proper and also run the brake lines and fuel lines inside the car .....and then get back to trying to get it to run.

 

i will be needing a timing light that will work on wasted spark though if you know of anyone who wants to lend one for beer tokens.

 

btw mad, phil did say that the cranking dwell was set quite high using the msq you gave me???

Edited August 10, 2009 by pugpete1108

[madspikes 41 1 Cars]

btw mad, phil did say that the cranking dwell was set quite high using the msq you gave me???

 

I gave you some dwell setting, really? If I did, and the cranking dwell is quite high, I best go change mine!