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#ECU DIAGNOSTIC 98 MUSTANG CODE#

Warranty does not include any labor associated with installation and/or removal of parts, key and/or Locksmith fees. Simply follow the instructions in the OBD2 scanner to erase or clear the data.All items come with a lifetime warranty. This process will also turn off the check engine light in the instrument console. All you need is a quality scan tool like the BAFX or Bluedriver to manually erase all related trouble codes and freeze frame data. Now, take note the data stated above may differ according to the make and model of the vehicle, the OBD2 protocol of the vehicle, and the type of OBD2 scan tool utilized to read the freeze frame data, but this should be a good general explanation to get you rolling! Can I manually clear freeze frame data using an OBD2 scan tool?

IAT 57 – Intake Air Temperature is at 57 degrees F when the PCM detected the diagnostic trouble code.

Rpm 1495 – is the engine revolutions per minute as the error occurred.

VSS 48 – is the speed of the vehicle when the DTC occurred.

In this case, the sensor has a pressure signal of 26.3 kilopascals.

Map kpa 26.3 – is the reading in the manifold absolute pressure sensor or MAP when the error occurred.

Long FT1 -3.0 – the oxygen sensor or O2 sensor has not switched yet to long-term fuel trim for the fuel injectors.

(read more about short and long term fuel trim and live OBD2 data)

SHrtFT1 2.6 – means the short-term fuel trim is at 2.6%.

In this case, the coolant temperature is 223 degrees F.

ECT 223 – is the Engine Coolant Temperature.

Load PCT 87 – the air volume or amount of air entering the motor that is below 100%.

This also means the engine is either a four or six-cylinder with just a single bank.

Fuel SYS2 N/A – means there is no fuel injector in bank 2.

Fuel SYS1 CL – the fuel injector in bank 1 is in closed-loop mode when the error occurred.

#ECU DIAGNOSTIC 98 MUSTANG CODE#

DTC P0261 – This is the diagnostic trouble code, DTC, or Generic OBD2 Trouble Code.Fault codes related to misfires and fuel supply will always take priority over other non-continuous fault codes. However, take note the freeze frame data can also be overwritten by more important data related to continuous monitors such as engine misfires and fuel trim. If your car completes approximately 40 warm-up cycles without detecting a fault, the PCM will delete the trouble code and freeze frame data automatically. This is what’s called automatic clearing.īut what if you plug-in the OBD2 scanner and find no freeze frame data? This is unlikely to occur if the PCM triggers a check engine light, but it can happen. However, the trouble code and the freeze frame data will remain stored in the ECU memory. If the failure doesn’t occur after three successive trips, the check engine light or MIL will be turned OFF. Okay so let’s assume the check engine light in your vehicle is ON. Did the OBD2 code clear on it’s own? How does the OBD2 system clear the freeze frame data? The freeze frame data will only be overwritten if the system detects an engine misfire or irregularities with the fuel trim. Also remember that the freeze frame data will not be refreshed or updated after succeeding failures on the same test cycle.

If the failure does not occur during the second trip, the temporary trouble code will be cleared from the ECU memory.īut if the failure occurs again during the next trip, the ECU will store a DTC along with the relevant freeze-frame data. But in the case of two-trip monitors, the PCM will temporarily store a diagnostic trouble code until the next trip.

These types of monitors such as the oxygen sensors, heaters, EGR system, evaporative emissions, and catalytic converter will perform a test once per trip.

Two-trip monitors or non-continuous monitors.

It is often referred to as a ‘one trip’ emissions diagnostic monitor and will enable the powertrain control module (PCM or vehicle ECU) to immediately store a diagnostic trouble code together with the necessary freeze frame data. Continuous monitors includes the fuel trim and the misfire detectors. This means the monitors are always running or operating continuously whenever the vehicle is running.