2007 M8 ECU No Spark

[Iron Horse Racing]

The background.....

Was out riding with the kids and it was running fine, started to idle high, then went back to normal, then 1/2 hour later it just quit, no spark....
Checked the ignition switch, throttle position, and kill switch.....

checked all the grounds, looked for loose, broken or rubbed wires....

Back at the shop, as we own two 2007 M8's I swapped the ECU's and it started first pull,
​

The questions:

1) anyone have one they want to sell?

2) what would cause it to go....​

 

[FernieHawk]

Did you put the possibly bad ECU in the other sled and have the same problem?

 

[Iron Horse Racing]

No I didn't...think of that...

Had someone mention that the high idle situation "might" have been enough to send the ECU into protection mode, and it may just need resetting !!!! Sounds plausible...

 

[AGGRESIVEZEBRA]

Do you know the shape that you need ( square Circle or triangle) i might have one for you if you cant get it figured out.

 

[Iron Horse Racing]

Do you know the shape that you need ( square Circle or triangle) i might have one for you if you cant get it figured out.

Appartly the only way to clear codes and reset is at a dealer, they only want 1/2 hour....might be worth it, but liking the idea that you might have one...

 

[meierjn]

Keep us updated!

 

[Iron Horse Racing]

Well the ECU is dead, the Mechanic that vdid was work was good about it and how he hanndled it, but the service writer, well he should be dam glad the wife went to pick up the sled, he was an uniformed ignorent little prick, came out and said that I broke it taking the conector of the ECU....

But.....Aggresivezebra aka Bryce, saved the day and has sold us a new ECU at a great price to help us and to clear out some older inventory....Thank you so much ....

FYI.....the retail price at shop 1 was $4,500, retail every where else I called was $3100 and change....just a little different....

They've lost my buisness....

 

[FernieHawk]

Well the ECU is dead, the Mechanic that vdid was work was good about it and how he hanndled it, but the service writer, well he should be dam glad the wife went to pick up the sled, he was an uniformed ignorent little prick, came out and said that I broke it taking the conector of the ECU....

But.....Aggresivezebra aka Bryce, saved the day and has sold us a new ECU at a great price to help us and to clear out some older inventory....Thank you so much ....

FYI.....the retail price at shop 1 was $4,500, retail every where else I called was $3100 and change....just a little different....

They've lost my buisness....

Are you saying the price for an ECU is between $3,100.00 and $4,500.00?

 

[AGGRESIVEZEBRA]

nope the regular retail is 3100 dollars at all shops, the one shop seen a guy that needed it so tried to charge 4500 for it. probably hoping he wouldn't do his research and just say yes and go with it.

 

[Iron Horse Racing]

Are you saying the price for an ECU is between $3,100.00 and $4,500.00?

Yes, I have Quotes from three dealerships, two were $3,100 but the third shop was $4,500 ....I was not impressed.....

I am a pretty loyal shopper, but also try to shop close to home if possible, not no more looks like I have to travel into Edmonton, to find a shop that shows some integrity....

Re the price, I was told they only made that ECU for a few years, and haven't used it since 2009, so in order to still get some Arctic cats order is for a small quantity, so the price goes up until at some point stop supply....


Thanks again Aggresivezebra....

 

[meierjn]

Wow. Their expensive. For that price it makes a guy want to pick a used one up when they show up on eBay or Kijiji. I saw a couple on Kijiji last week but don's recall the price or the models they were for. Ouch!

 

[summitbound]

Wow. Their expensive. For that price it makes a guy want to pick a used one up when they show up on eBay or Kijiji. I saw a couple on Kijiji last week but don's recall the price or the models they were for. Ouch!

FYI
Arcticedge Motorsports has a
New 2009 M8 ECU $ 1500
1-403-564-4673

 

[KatMan]

Used 6-8oo bucks.

 

[Iron Horse Racing]

OK so popped in a New ECU....( thanks to Aggesivezebra )...
Sled fired up first pull, let it warm up, took it for a short blast around the farm....everything was working.....was idling at about 1700 rpm.

Last Saturday, we had a bunch of people over, took everyone for a sleigh ride, then fired up the four sleds, hooked a toboggan up and went out back to our big hill....
A bunch took turns riding the sleds, we tobogganed with the kids up and down the hill, went back to the house, sled with the new ECU ran great...

They all got parked outside until all the vehicles left, about 11:00 pm, I fired them all up, to put them away....and now the sled with the new ECU is idling at 3000 rpm???
Let it warm up, then drove it into the shed....still idling at 3000 rpm.
This is where this thing started, about an hour into a ride, it all of a sudden started idling to high, see the start of the thread for the rest...

What would cause it to idle that high ???

 

[Iron Horse Racing]

Started it last night and it idled at 1700 rpm.....didn't have time to ride it, just scratched my head, shut it off and went back to chores....

 

[TylerG]

OK so popped in a New ECU....( thanks to Aggesivezebra )...
Sled fired up first pull, let it warm up, took it for a short blast around the farm....everything was working.....was idling at about 1700 rpm.

Last Saturday, we had a bunch of people over, took everyone for a sleigh ride, then fired up the four sleds, hooked a toboggan up and went out back to our big hill....
A bunch took turns riding the sleds, we tobogganed with the kids up and down the hill, went back to the house, sled with the new ECU ran great...

They all got parked outside until all the vehicles left, about 11:00 pm, I fired them all up, to put them away....and now the sled with the new ECU is idling at 3000 rpm???
Let it warm up, then drove it into the shed....still idling at 3000 rpm.
This is where this thing started, about an hour into a ride, it all of a sudden started idling to high, see the start of the thread for the rest...

What would cause it to idle that high ???

have you checked for blockage in the baremetric pressure tube? basically the "fuel line" that connects to the ECU?

 

[Iron Horse Racing]

have you checked for blockage in the baremetric pressure tube? basically the "fuel line" that connects to the ECU?

A new one came with the new ECU, but I'll check the routing tonight

 

[TylerG]

A new one came with the new ECU, but I'll check the routing tonight

Maybe it got pinched

 

[mountianguy]

Check your reeds for damaged or broken pedals.