FJO Mini Problem
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From: Chi-Town Western Burbs
FJO Mini Problem So,
This install is on a 2005 GTO LS2. The controller works flawlessly except for a strange problem. When the system activates my speedometer dies. I'm pulling the RPM signal right off the green wire by the passenger side center coil packs. When I let off the pedal, the speedo comes back. Tach works fine the entire run. Anyone??
TIA,
Mark
This install is on a 2005 GTO LS2. The controller works flawlessly except for a strange problem. When the system activates my speedometer dies. I'm pulling the RPM signal right off the green wire by the passenger side center coil packs. When I let off the pedal, the speedo comes back. Tach works fine the entire run. Anyone??
TIA,
Mark
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From: Chi-Town Western Burbs
Originally Posted by Todd157k
FPSS is not a power / ground switch. It's inline (series) switch. Shouldn't be hooked to chassis unless the other side is hooked to relay chassis ground connection. Not a good idea. Pulling too much current through FPSS.
The question of where you're tapping for power is the switched 12v.
The question of where you're tapping for power is the switched 12v.
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From: Chi-Town Western Burbs
Originally Posted by Todd157k
FPSS is not a power / ground switch. It's inline (series) switch. Shouldn't be hooked to chassis unless the other side is hooked to relay chassis ground connection. Not a good idea. Pulling too much current through FPSS.
The question of where you're tapping for power is the switched 12v.
The question of where you're tapping for power is the switched 12v.
So....Where should I be grounding the FPSS???
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From: Chi-Town Western Burbs
Originally Posted by Todd157k
Do you have the other side of FPSS going to pin 85 of the relay? If so, it's wired ok. If not, tell us how you have it wired.
Yep. Pin 85 is for the FPSS and the other terminal on the FPSS is to ground. The system is working fine with the exception of my speedo issue...Sounds like it would be something related to the RPM signal connection......
ya. I agree since it only happens when the FJO kicks in. So, ya need to check that pick up you're using. I don't know which is the correct wire for the GTO but doesn't sound like it's the one you're using.
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From: Chi-Town Western Burbs
Originally Posted by Nitro Dave's Nitrous Outlet
It deffinly has to do with a connection somewhere.
Tach signle should be comming from passenger side coil trigger wire light green.
Dave
Tach signle should be comming from passenger side coil trigger wire light green.
Dave
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One thing is if your FJO box is near something sensitive. The RF noise traveling on the main ground wires is pretty high.
Light Green.
Tell you what with noids UNPLUGED see if the SPEED O drops out. If not it has to do with ground and noise. IF it does might be time for a rewire.
Which TPS wire did you plug on to.
Ricky
Light Green.
Tell you what with noids UNPLUGED see if the SPEED O drops out. If not it has to do with ground and noise. IF it does might be time for a rewire.
Which TPS wire did you plug on to.
Ricky
