BackGround: 2007 MXZ Blizzard 800 H.O. PTek, 144 engine light flashes
Sled had lots of electrical problems and battery dying.,, eventually going dead... Gauges going whacky or not working, cluster lights blinking, headlight 1/2 bright, engine surging at idle....seemed to work ok when rpm high.... I replaced relay... works much better, gauges working, lights working, no surging, however battery continues to drain and when battery voltage gets low 10-11v..tach wont work at idol...sled continues to run
I ran the sled with multi-meter hardwired to battery.... When cold, battery responds to 13.5-14.5 v, approx 2amps across 30amp charging fuse. Once warm or high rpm... suddenly voltage drops to 12.? (what ever battery is at time) then battery voltage stays low, doesn't respond to rpms, and continues to drop over time...you can see a small voltage drop when turn on accessories or brights....
Once low less then 11 v or so tach starts to mess up at idol, however sled runs fine. I do find the battery lasts longer without headlights or accessories on
After driving a bit the sled can be difficult to start, reverse wont engage...then back fires while starting after a few minutes and then starts and reverse works... seems like its running rich and is a little flooded???? plugs show rich.
I have replaced: Relay, (improvements), faulty handwarmer and switch (no change), voltage regulator (No change), inspected wiring, locked out accessories, lights by pulling fuse... no real change, checked grounds, checked for a "draw", tested battery x2 both checked good, replaced all fuses (no change), repaired one small wire (on top of battery, 30 amp fuse to battery post) no change, tested for continuity in tail light and headlights, replaced spark plugs (no change)
Stator:
Continuity Test: to spec
Insulation Test: to spec
AC Output (engine cold): 0.8-3.1v (spec is 3.5-7v) Did the test several times highest reading 3.1
I cant start sled without battery and when I pull the 30amp fuse its stops running
My best guess: Stator or wiring from stator, ECM or faulty wire /connection etc. in some mystery location. However i am leaning towards stator.... My skills are ok.. but i am no pro so maybe my diagnostics arent correct etc
Any way I can rule out stator vs ECM..... any thoughts out there. I am stuck
G
Sled had lots of electrical problems and battery dying.,, eventually going dead... Gauges going whacky or not working, cluster lights blinking, headlight 1/2 bright, engine surging at idle....seemed to work ok when rpm high.... I replaced relay... works much better, gauges working, lights working, no surging, however battery continues to drain and when battery voltage gets low 10-11v..tach wont work at idol...sled continues to run
I ran the sled with multi-meter hardwired to battery.... When cold, battery responds to 13.5-14.5 v, approx 2amps across 30amp charging fuse. Once warm or high rpm... suddenly voltage drops to 12.? (what ever battery is at time) then battery voltage stays low, doesn't respond to rpms, and continues to drop over time...you can see a small voltage drop when turn on accessories or brights....
Once low less then 11 v or so tach starts to mess up at idol, however sled runs fine. I do find the battery lasts longer without headlights or accessories on
After driving a bit the sled can be difficult to start, reverse wont engage...then back fires while starting after a few minutes and then starts and reverse works... seems like its running rich and is a little flooded???? plugs show rich.
I have replaced: Relay, (improvements), faulty handwarmer and switch (no change), voltage regulator (No change), inspected wiring, locked out accessories, lights by pulling fuse... no real change, checked grounds, checked for a "draw", tested battery x2 both checked good, replaced all fuses (no change), repaired one small wire (on top of battery, 30 amp fuse to battery post) no change, tested for continuity in tail light and headlights, replaced spark plugs (no change)
Stator:
Continuity Test: to spec
Insulation Test: to spec
AC Output (engine cold): 0.8-3.1v (spec is 3.5-7v) Did the test several times highest reading 3.1
I cant start sled without battery and when I pull the 30amp fuse its stops running
My best guess: Stator or wiring from stator, ECM or faulty wire /connection etc. in some mystery location. However i am leaning towards stator.... My skills are ok.. but i am no pro so maybe my diagnostics arent correct etc
Any way I can rule out stator vs ECM..... any thoughts out there. I am stuck
G