Paddock Quick Reference

The pages a tech or driver hits most when the car is at the track. Links land on specific sections where possible.

By page

Dash Alarms — what each alarm means and what to do
Shift Debugging — Where to Start — GCU + shift system triage index
Shift Debugging — Can’t Find Neutral
Shift Debugging — Compressor runs continuously
Torque Specs — fasteners, by component
Fluids — types, capacities, intervals
Service Bulletins — latest TSBs, newest first
Main Harness Pinout
Shift Harness Pinout
Driving and Shifting — operation and shift protocol
Driving and Shifting — 2→1 False Neutral
Check Driver — before blaming the car

By symptom

Symptom	See
2 to 1 false neutral	1st Gear and the 2→1 False Neutral
Actuator rod	Actuator Rod Length and Cylinder Alignment
Air leak	Finding an air leak
Asymmetric shifts	Asymmetric Shifts: One Direction Weaker · Shifter Cylinder Alignment
Bench test	Manual Pneumatic Shift Test
Bisect fault	Manual Pneumatic Shift Test
Blaming the car	Check Driver
Blip cylinder	Blip Cylinder Air Supply (Gen1 cable throttle)
Bogged corner exit	1st Gear and the 2→1 False Neutral
Brake light failure	Brake-light pressure sensor
Brake lights not working	Brake-light pressure sensor
Cable throttle	Blip Cylinder Air Supply (Gen1 cable throttle)
Can’t find neutral	Can’t Find Neutral with the Engine Running
Check clutch switch	Clutch Switch
Check oil fill	Oil System Health (RPM-Based)
Check oil pump	Oil System Health (RPM-Based)
Clutch switch	Clutch Switch (Gen2 DBW)
Compressor running constantly	Compressor Issues
Compressor short cycling	Compressor Issues
Compressor won’t run	Compressor Issues
Cylinder alignment	Actuator Rod Length and Cylinder Alignment
Cylinder misaligned	Shifter Cylinder Alignment
Dead paddles	Nothing Works: No Shifts, No Compressor
Dropped shift	Missed or Incomplete Shifts (Both Directions)
Erratic shifts	GCU Water Intrusion
GCU dead	Nothing Works: No Shifts, No Compressor
GCU water	GCU Water Intrusion
Gearshift sensor mimic	Gearshift Sensor Mimic (Gen2 DBW)
Gen1	Blip Cylinder Air Supply (Gen1 cable throttle)
Gen2	Clutch Switch (Gen2 DBW) · Gearshift Sensor Mimic (Gen2 DBW) · Speed Emulator (Gen2 DBW)
Gss mimic	Gearshift Sensor Mimic (Gen2 DBW)
High oil pressure	Oil Pressure
High water temp	Water Temperature
Hiss after shift	Asymmetric Shifts: One Direction Weaker
Hissing tank	Finding an air leak
Intermittent shifts	Missed or Incomplete Shifts (Both Directions)
Limp mode	Clutch Switch (Gen2 DBW) · Speed Emulator (Gen2 DBW)
Low OilP ratio	Oil System Health (RPM-Based)
Low oil pressure	Oil Pressure
Manual shift	Manual Pneumatic Shift Test
Mechanical binding	Shift Arm
Missed shifts	Missed or Incomplete Shifts (Both Directions)
Muffled shift	Asymmetric Shifts: One Direction Weaker
Neutral but no crank	Car Won’t Start — Dash Shows N but Engine Won’t Crank
Neutral with engine on	Can’t Find Neutral with the Engine Running
No blip	Blip Cylinder Air Supply (Gen1 cable throttle) · Clutch Switch (Gen2 DBW) · Gearshift Sensor Mimic (Gen2 DBW)
No compressor	Nothing Works: No Shifts, No Compressor
No crank	Car Won’t Start — Dash Shows N but Engine Won’t Crank
No cut	Gearshift Sensor Mimic (Gen2 DBW)
No shifts	Nothing Works: No Shifts, No Compressor
Not fast enough	Check Driver
OilP sender failed	Oil System Health (RPM-Based)
One direction dead	One Paddle Direction Doesn’t Respond
Overheating	Water Temperature
Paddle dead	One Paddle Direction Doesn’t Respond
Pneumatic test	Manual Pneumatic Shift Test
Rev limited in neutral	1st Gear and the 2→1 False Neutral
Shift arm	Shift Arm
Slow lap times	Check Driver
Slow pressure loss	Finding an air leak
Speed emulator	Speed Emulator (Gen2 DBW)
Stuck clutch switch	Clutch Switch
Stuck in neutral on downshift	1st Gear and the 2→1 False Neutral
Throttle capped	Speed Emulator (Gen2 DBW)
Very high oil pressure	Oil Pressure
Very high water temp	Water Temperature
Water intrusion	GCU Water Intrusion
Weak downshift	Asymmetric Shifts: One Direction Weaker · Shifter Cylinder Alignment
Weak upshift	Asymmetric Shifts: One Direction Weaker · Shifter Cylinder Alignment
Won’t start	Car Won’t Start — Dash Shows N but Engine Won’t Crank