Caterham Super C2727 Engine Trouble Code
What is Caterham Super C2727?
When Caterham Super C2727 code appears, first check your gas cap. Pull over safely, ensure it is tight, and inspect for cracks. A loose or damaged gas cap affects fuel-system pressure and emissions. A replacement cap costs about $3–$10. This simple fix can resolve the code and improve fuel economy.
C2727 on the Caterham Super
The Caterham Super ECU flash version prior to the 2.4.1 update has a known calibration bug that can generate spurious C2727 codes under hard deceleration. Verifying the ECU software version is always the first step before any mechanical diagnosis on this model.
Code Information
| Code Type: | OBD-II Chassis (C) Trouble Code |
| System: | Chassis |
| Vehicle: | Caterham Super |
| Brand: | Caterham |
| Model: | Super |
| Code: | C2727 |
C2727 Caterham Super Symptoms
Check Engine Light
Illuminated Caterham Super dashboard warning
Engine Stalling
Engine stops unexpectedly or misfires
Performance Issues
Reduced power or acceleration on the Caterham Super
Starting Problems
Difficulty starting the engine
Poor Fuel Economy
Increased fuel consumption on the Caterham Super
Increased Emissions
Failed emissions test due to C2727
C2727 Code Structure
Understanding what each digit means in the C2727 chassis trouble code:
| C | 2 | 7 | 2 | 7 |
|---|---|---|---|---|
| Chassis Code | Fuel And Air Metering (Injector Circuit Malfunctions Only) | Fuel Rail Pressure Sensor Circuit Malfunction | Turbocharger Boost Sensor A Circuit Low | Shift/Timing Solenoid Malfunction |
How to Fix Caterham Super C2727
Diagnostic Steps:
Oxygen sensors measure exhaust gas oxygen content to optimise air-fuel ratio. This optimisation improves fuel economy and reduces emissions. Sensors degrade over time and require periodic replacement.
Repair Solution:
Disconnected, dirty, or fouled spark plugs commonly prevent proper engine operation. Replace spark plugs every season or 25 hours. Verify proper spark plug gap. If plugs are good, check ignition components: spark plug wires, coils, and ignition module.
Technical Notes:
Parts or components should not be replaced based solely on C2727 DTC. Consult your vehicle service manual for proper diagnostic procedures, possible causes, and required testing before replacement.
Caterham Super C2727 Repair Cost
VVT actuator replacement on the Caterham Super for C2727 is a more significant investment: $400–$700 including the oil flush required before fitting the new actuator. Using the correct low-SAPS engine oil after the repair is critical to prevent premature re-failure.
C2727 Description
C2727 engine trouble code is related to Shift/Timing Solenoid Malfunction.
Main Cause
The primary reason for C2727 OBD-II Engine Trouble Code is: Fuel Rail Pressure Sensor Circuit Malfunction.
Common C2727 Misdiagnosis on the Caterham Super
Some Caterham Super models have a known software bug where the PCM flags C2727 after battery disconnection and reconnect. Always perform an ECU adaptation reset and drive cycle before ordering any parts following battery work.
DIY Repair Guide: C2727 on Caterham Super
When attempting DIY diagnosis of C2727 on your Caterham Super, a smoke machine test is the gold standard for finding vacuum leaks. Rental tools are available from most auto parts stores for $0–$20/day, or you can fabricate a makeshift tester using a hand vacuum pump and soapy water spray.
Preventing C2727 on the Caterham Super
The Caterham Super coolant temperature sensor plays a role in fuel enrichment during warm-up. Replacing it as a precaution at 80,000 miles ($25–$40 DIY) prevents the faulty cold-start enrichment that can lead to C2727.
Frequently Asked Questions — Caterham Super C2727
A: Almost certainly yes. Most faults that trigger C2727 cause the ECU to operate in open-loop mode or apply overly rich fuel trims, both of which increase fuel consumption by 5–15%. Resolving the fault promptly pays for itself in fuel savings over time.