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ecu replacement
« on: March 07, 2016, 09:57:55 AM »
I am thinking my ecu is bad does anyone know where to get one cheaper that alpha sports they want $385. Here is what I have done so far.

1. tested the battery it checks out fine
2. replaced the starter solenoid I'll keep the old one lol
3. Checked both starter relays under the dash replaced them with ones I knew to be good.
4. now it think its the ecu when you try to start it just clicks.
2012 Z6 trail
Homemade roof/Stereo system/KFI Snowplow/3 inch lift/28 inch maxxis bighorn 2.0/led running lights/thats it no more mods until i get the 800ex/wrong custom skid plate

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Offline NMKawierider

Re: ecu replacement
« Reply #1 on: March 07, 2016, 10:37:15 AM »
A bad ECU won't stop it from turning over but it will stop it from getting spark or fuel. A bad starter, bad power or ground, solenoid, starter drive gear...along with a locked-up engine will stop it from turning over. Can you manually turn the engine over..ie.. confirm it's not locked up?
2015 Z Force 800 (53") EPS -
Custom Air Intakes | Custom Exhaust Mod | SuperATV Harness | Custom Fenders | Custom Skid/Rock Sliders | 27" GBC Grim Reapers | Seizmik Mirrors |Конструктор (Rodin's) Doors | Dr Pulley Sliders | 1.5" Wheel Spacers | BENZ Silencer (as needed) | SATV Flip Windshield W\ Rear Shield | Dual Light Bars | Diamond Plate Storage | 9.7" GPS | Bandit Springs Rear & Gen-3 Shocks Front

My Videos On YouTube

Re: ecu replacement
« Reply #2 on: March 07, 2016, 10:40:29 AM »

Can you manually turn the engine over..ie.. confirm it's not locked up?

First off thank you for your reply at first It acted like it was the starter solenoid that is located under the seat. So I replaced it but before and now if I jump across that solenoid it starts so I know its not locked up I wonder if I just got a bad solenoid or if that is even possible


2012 Z6 trail
Homemade roof/Stereo system/KFI Snowplow/3 inch lift/28 inch maxxis bighorn 2.0/led running lights/thats it no more mods until i get the 800ex/wrong custom skid plate

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Offline NMKawierider

Re: ecu replacement
« Reply #3 on: March 07, 2016, 10:49:12 AM »

Can you manually turn the engine over..ie.. confirm it's not locked up?

First off thank you for your reply at first It acted like it was the starter solenoid that is located under the seat. So I replaced it but before and now if I jump across that solenoid it starts so I know its not locked up I wonder if I just got a bad solenoid or if that is even possible.

Good, that is good to know its not locked... When you say you jump across the solenoid, are you jumping the battery cables or are you actually activating the solenoid by applying power from the battery cable to the 12V power wire on the solenoid? Cause I'm thinking the solenoid may have a bad ground or it's not getting the 12 volts from the switch...maybe a bad connection somewhere. Might test the power to the solenoid with the key in the starter position and see. Remove the wire first and connect the tester to it and ground before hitting the key.
2015 Z Force 800 (53") EPS -
Custom Air Intakes | Custom Exhaust Mod | SuperATV Harness | Custom Fenders | Custom Skid/Rock Sliders | 27" GBC Grim Reapers | Seizmik Mirrors |Конструктор (Rodin's) Doors | Dr Pulley Sliders | 1.5" Wheel Spacers | BENZ Silencer (as needed) | SATV Flip Windshield W\ Rear Shield | Dual Light Bars | Diamond Plate Storage | 9.7" GPS | Bandit Springs Rear & Gen-3 Shocks Front

My Videos On YouTube

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Offline NMKawierider

Re: ecu replacement
« Reply #4 on: March 07, 2016, 10:54:10 AM »
Another thought...how about the neutral/Park switch! Have you tried it in all the gear selections? Is the Neutral light on in neutral? This is also a switch that does go bad sometimes.
2015 Z Force 800 (53") EPS -
Custom Air Intakes | Custom Exhaust Mod | SuperATV Harness | Custom Fenders | Custom Skid/Rock Sliders | 27" GBC Grim Reapers | Seizmik Mirrors |Конструктор (Rodin's) Doors | Dr Pulley Sliders | 1.5" Wheel Spacers | BENZ Silencer (as needed) | SATV Flip Windshield W\ Rear Shield | Dual Light Bars | Diamond Plate Storage | 9.7" GPS | Bandit Springs Rear & Gen-3 Shocks Front

My Videos On YouTube

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Offline Cosmosdan

Re: ecu replacement
« Reply #5 on: March 07, 2016, 08:35:19 PM »
I just seen this post. If you bridged the two post on the solenoid and it started and ran, I would say ECU just fine. You can get a bad brand new solenoid. Happens to me once in awhile.
2013 Z6 Trail
Iron Baltic skid plates
UE Boom Speaker mount
RZR 800 Shocks
Mostly stock trail riding
25g. Rollers and A1

2016 Outlander max 570
Too new for mods yet

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Offline Cosmosdan

Re: ecu replacement
« Reply #6 on: March 07, 2016, 11:26:55 PM »
I checked the service manual 11-4. That section is a horrible translation. Looks like there is a two terminal harness that plugs into the solenoid. I would think if you stick your meter leads in the harness and turn the key there should be 12v there. If not do as NMKawierider suggested and start checking interlock switches.
2013 Z6 Trail
Iron Baltic skid plates
UE Boom Speaker mount
RZR 800 Shocks
Mostly stock trail riding
25g. Rollers and A1

2016 Outlander max 570
Too new for mods yet

Re: ecu replacement
« Reply #7 on: March 08, 2016, 05:33:08 AM »
I'm taking the easy way out and taking it in to the shop on Thursday I'll let you know what they find
2012 Z6 trail
Homemade roof/Stereo system/KFI Snowplow/3 inch lift/28 inch maxxis bighorn 2.0/led running lights/thats it no more mods until i get the 800ex/wrong custom skid plate

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Offline Cosmosdan

Re: ecu replacement
« Reply #8 on: March 08, 2016, 06:11:21 AM »
Sometimes you get so pissed that you just need to bring it in or set fire to it. I am interested in what the source of the problem was.
2013 Z6 Trail
Iron Baltic skid plates
UE Boom Speaker mount
RZR 800 Shocks
Mostly stock trail riding
25g. Rollers and A1

2016 Outlander max 570
Too new for mods yet

Re: ecu replacement
« Reply #9 on: March 10, 2016, 09:07:29 AM »
I made a video of what this thing is doing it acts just like a dead battery but the battery tests fine and has 12 volts. The solenoid is new I'm going to test a few things today with a multi meter and see what I can find out

2012 Z6 trail
Homemade roof/Stereo system/KFI Snowplow/3 inch lift/28 inch maxxis bighorn 2.0/led running lights/thats it no more mods until i get the 800ex/wrong custom skid plate

*

Offline NMKawierider

Re: ecu replacement
« Reply #10 on: March 10, 2016, 10:11:25 AM »
If it starts by jumping the two battery cables, then the solenoid isn't able to mage full contact. It either had low power to it or a bad ground or its defective. Your multimeter will sort that out.
2015 Z Force 800 (53") EPS -
Custom Air Intakes | Custom Exhaust Mod | SuperATV Harness | Custom Fenders | Custom Skid/Rock Sliders | 27" GBC Grim Reapers | Seizmik Mirrors |Конструктор (Rodin's) Doors | Dr Pulley Sliders | 1.5" Wheel Spacers | BENZ Silencer (as needed) | SATV Flip Windshield W\ Rear Shield | Dual Light Bars | Diamond Plate Storage | 9.7" GPS | Bandit Springs Rear & Gen-3 Shocks Front

My Videos On YouTube

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Offline NMKawierider

Re: ecu replacement
« Reply #11 on: March 10, 2016, 10:26:23 AM »
Here is the test for the 800. Probably the same for the 600.

2015 Z Force 800 (53") EPS -
Custom Air Intakes | Custom Exhaust Mod | SuperATV Harness | Custom Fenders | Custom Skid/Rock Sliders | 27" GBC Grim Reapers | Seizmik Mirrors |Конструктор (Rodin's) Doors | Dr Pulley Sliders | 1.5" Wheel Spacers | BENZ Silencer (as needed) | SATV Flip Windshield W\ Rear Shield | Dual Light Bars | Diamond Plate Storage | 9.7" GPS | Bandit Springs Rear & Gen-3 Shocks Front

My Videos On YouTube

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Offline Cosmosdan

Re: ecu replacement
« Reply #12 on: March 10, 2016, 04:09:17 PM »
11-29 in the service manual. Reds are from the battery. Y/R should be 12+ from the relay, the one you need. G is ground.
2013 Z6 Trail
Iron Baltic skid plates
UE Boom Speaker mount
RZR 800 Shocks
Mostly stock trail riding
25g. Rollers and A1

2016 Outlander max 570
Too new for mods yet

Re: ecu replacement
« Reply #13 on: March 12, 2016, 08:06:15 AM »
So I found the problem it was not the ecu it was not the solenoid or starter it was just a bad battery. A couple things will remain a mystery I guess.

1. why did the battery show 12 volts every time I checked it with my multimeter?
2. Why did it not start when I jumped it with a good battery?
3. Why did it start when I jumped across the solenoid?
4. Why did it not turn over slowly like other things I've had when the battery goes bad?

2012 Z6 trail
Homemade roof/Stereo system/KFI Snowplow/3 inch lift/28 inch maxxis bighorn 2.0/led running lights/thats it no more mods until i get the 800ex/wrong custom skid plate

*

Offline NMKawierider

Re: ecu replacement
« Reply #14 on: March 12, 2016, 09:53:13 AM »
So I found the problem it was not the ecu it was not the solenoid or starter it was just a bad battery. A couple things will remain a mystery I guess.

1. why did the battery show 12 volts every time I checked it with my multimeter?
2. Why did it not start when I jumped it with a good battery?
3. Why did it start when I jumped across the solenoid?
4. Why did it not turn over slowly like other things I've had when the battery goes bad?

Does not make sense. A bad battery would not deliver power no mater what or how you jumped it. And although it may show 12 volts while sitting static, under load the voltage would not be 12, it would be far less. Now a bad connection or a bad battery cable or cable end..that may have a different outcome. Did any cable look or feel different then the other? Even the common.
2015 Z Force 800 (53") EPS -
Custom Air Intakes | Custom Exhaust Mod | SuperATV Harness | Custom Fenders | Custom Skid/Rock Sliders | 27" GBC Grim Reapers | Seizmik Mirrors |Конструктор (Rodin's) Doors | Dr Pulley Sliders | 1.5" Wheel Spacers | BENZ Silencer (as needed) | SATV Flip Windshield W\ Rear Shield | Dual Light Bars | Diamond Plate Storage | 9.7" GPS | Bandit Springs Rear & Gen-3 Shocks Front

My Videos On YouTube