R
racin_jayson
Member
Background info:
2012 pro 800 with a custom turbo kit.
Bought a Vipec ecu from the boys in Quebec and Sebastien has been trying to help me get this going but I haven't been able to reach him for a couple days.
The problem(s):
Currently, and most of the time lately, I can pull on the cord a hundred times and it won't start, it will stumble for a second then die every few pulls. No gauges light up and giving it gas makes it die.
but then sometimes the sled will start second pull, and idle low, around 1400 rpm, the gauge will flicker and the wideband will shut off and restart, looking at the datalog from the vipec it shows my rpm dropping to zero momentarily then coming back up, this would cause the ecu to cycle the power to my chassis power which explains the flickering. But why the RPM glitch?
and then, sometimes the sled will start on the 5th pull and run perfectly fine, idle is a little low at around 1500 but is steady, when it does this I can drive the sled with no issues, throttle response is good, everything is normal throughout the rpm range, no issues at all except that it took 5 pulls to start and it idles a bit low.
Using the vipec software I have confirmed that my kill switch works properly, and the ecu is getting trig1 and trig2 signals, but won't register any rpm when I pull it over. I have tried to start the sled with a battery connected to the sled, feeding the ecu power, the only difference this makes is that when I pull it over, the fuel pump primes, and it never fires up unlike when I pull it over without the battery how it tries to start for a split second.
Every mechanical component on the sled has been checked, every wire has been inspected and tested, I have replaced the following with no luck: stator assembly (cps air gaps set to 0.020"), voltage regulator, chassis power relay, fuel pump, capacitor, tps sensor (properly calibrated as per vipec). I know it's not a mechanical part because when it does start it runs beautifully. The only change to the sleds electrical system is the addition of a wideband on the accessory power, and the addition of larger fuel injectors, map and iat sensors. I have tried with the wideband unplugged and it makes no difference as well. Have tried unplugging my ignition switch and tether to rule them out as well with no luck.
Sebastien says he guarantees that it's not the ECU that's the problem, but I am out of electrical components to replace. I'm getting really frustrated and I'm hoping that there is someone who can help me out.
I've got datalog files for each problem for anyone who has the vipec software, I can email them to you to check.
2012 pro 800 with a custom turbo kit.
Bought a Vipec ecu from the boys in Quebec and Sebastien has been trying to help me get this going but I haven't been able to reach him for a couple days.
The problem(s):
Currently, and most of the time lately, I can pull on the cord a hundred times and it won't start, it will stumble for a second then die every few pulls. No gauges light up and giving it gas makes it die.
but then sometimes the sled will start second pull, and idle low, around 1400 rpm, the gauge will flicker and the wideband will shut off and restart, looking at the datalog from the vipec it shows my rpm dropping to zero momentarily then coming back up, this would cause the ecu to cycle the power to my chassis power which explains the flickering. But why the RPM glitch?
and then, sometimes the sled will start on the 5th pull and run perfectly fine, idle is a little low at around 1500 but is steady, when it does this I can drive the sled with no issues, throttle response is good, everything is normal throughout the rpm range, no issues at all except that it took 5 pulls to start and it idles a bit low.
Using the vipec software I have confirmed that my kill switch works properly, and the ecu is getting trig1 and trig2 signals, but won't register any rpm when I pull it over. I have tried to start the sled with a battery connected to the sled, feeding the ecu power, the only difference this makes is that when I pull it over, the fuel pump primes, and it never fires up unlike when I pull it over without the battery how it tries to start for a split second.
Every mechanical component on the sled has been checked, every wire has been inspected and tested, I have replaced the following with no luck: stator assembly (cps air gaps set to 0.020"), voltage regulator, chassis power relay, fuel pump, capacitor, tps sensor (properly calibrated as per vipec). I know it's not a mechanical part because when it does start it runs beautifully. The only change to the sleds electrical system is the addition of a wideband on the accessory power, and the addition of larger fuel injectors, map and iat sensors. I have tried with the wideband unplugged and it makes no difference as well. Have tried unplugging my ignition switch and tether to rule them out as well with no luck.
Sebastien says he guarantees that it's not the ECU that's the problem, but I am out of electrical components to replace. I'm getting really frustrated and I'm hoping that there is someone who can help me out.
I've got datalog files for each problem for anyone who has the vipec software, I can email them to you to check.