P2695 — Cylinder 10 Injector Data Incompatible
OBD2 code P2695 flags a problem with the fuel delivery and mixture control (cylinder 10 injector data incompatible). Short, gentle driving to a shop is usually possible. Common culprits: vacuum or intake leaks skewing the mixture, faulty fuel pressure regulator, faulty fuel rail pressure sensor or wiring.
powertrain (engine/transmission)
Is it safe to drive?
Drive with caution Drive with caution. Mixture and fuel-pressure faults can cause stalling, hesitation in traffic and — when severe — catalyst damage. Avoid long trips until diagnosed.
How to diagnose with an OBD scanner
- Read the code and freeze frame Connect an OBD2 scanner, confirm P2695 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
- Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
- Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the fuel delivery and mixture control for damage, corrosion, chafing or poor contact.
- Subsystem check Measure fuel pressure at the rail and compare with factory specification at idle and under load.
- Subsystem check Check short-term and long-term fuel trims in live data to see which way the mixture is off.
- Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P2695 does not return.
Approximate repair cost
Repair cost depends on which component actually failed. Typical scenarios for P2695 (parts and labor, USD, independent shop rates): Replace the pressure regulator or sensor: $150–$450; Clean or replace injectors: $200–$800; Replace the fuel pump: $400–$900; Replace the fuel filter: $80–$200. Overall, fixing P2695 usually costs between $80 and $900. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.
Common questions
What does OBD2 code P2695 mean?
OBD2 code P2695 flags a problem with the fuel delivery and mixture control (cylinder 10 injector data incompatible). Short, gentle driving to a shop is usually possible. Common culprits: vacuum or intake leaks skewing the mixture, faulty fuel pressure regulator, faulty fuel rail pressure sensor or wiring.
How do I diagnose P2695 myself?
Start with a scan: confirm P2695, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the fuel delivery and mixture control, and verify the suspect component against live data before buying parts.
How much does it cost to fix P2695?
Replace the pressure regulator or sensor — $150–$450; Clean or replace injectors — $200–$800; Replace the fuel pump — $400–$900; Replace the fuel filter — $80–$200. Exact cost depends on the root cause, your vehicle and local labor rates — a proper diagnosis is the cheapest first step.
What are the symptoms of P2695?
Drivers most often notice: loss of power under load, hard starting or long cranking, Check Engine Light on, increased fuel consumption.
What is the most common cause of P2695?
The most common causes are: vacuum or intake leaks skewing the mixture, faulty fuel pressure regulator, faulty fuel rail pressure sensor or wiring.
What does P2695 mean?
Behind P2695 is a specific failure in the fuel delivery and mixture control: cylinder 10 injector data incompatible. The onboard computer stores it in the powertrain (engine/transmission) group after verifying the fault over repeated checks.
P2695 refers specifically to cylinder 10. On inline engines cylinders are counted from the front (belt end); on V-engines the numbering depends on the manufacturer, so check the firing-order diagram for your exact model. Location matters for the repair bill: some cylinders require intake manifold removal, which adds labor time.
To set P2695, the control module compares live readings of the fuel delivery and mixture control against calibrated limits, usually over several drive cycles. Alongside the code it stores a freeze frame — a snapshot of rpm, load, coolant temperature and vehicle speed at the moment of failure. Reading that snapshot first saves diagnostic time.
What causes P2695?
- weak fuel pump or clogged fuel filter
- clogged or leaking fuel injectors
- faulty fuel rail pressure sensor or wiring
- contaminated or incorrect fuel
- faulty fuel pressure regulator
- vacuum or intake leaks skewing the mixture
Common symptoms of P2695
- loss of power under load
- hard starting or long cranking
- Check Engine Light on
- increased fuel consumption
- fuel smell in severe cases
How to diagnose P2695
- Connect an OBD2 scanner, confirm P2695 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
- Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
- Visually inspect the wiring harness and connectors related to the fuel delivery and mixture control for damage, corrosion, chafing or poor contact.
- Measure fuel pressure at the rail and compare with factory specification at idle and under load.
- Check short-term and long-term fuel trims in live data to see which way the mixture is off.
- Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P2695 does not return.
How to fix P2695
Start with the cheapest and most common causes before replacing expensive parts:
- Replace the pressure regulator or sensor — $150–$450
- Clean or replace injectors — $200–$800
- Replace the fuel pump — $400–$900
- Replace the fuel filter — $80–$200
How much does it cost to fix P2695?
Repair cost depends on which component actually failed. Typical scenarios for P2695 (parts and labor, USD, independent shop rates):
- Replace the pressure regulator or sensor: $150–$450
- Clean or replace injectors: $200–$800
- Replace the fuel pump: $400–$900
- Replace the fuel filter: $80–$200
Overall, fixing P2695 usually costs between $80 and $900. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.
Can you drive with P2695?
Drive with caution. Mixture and fuel-pressure faults can cause stalling, hesitation in traffic and — when severe — catalyst damage. Avoid long trips until diagnosed.