U0991 DTC For Ford Lotus
Ford Lotus Engine Specifications:
| Engine Type : | Single Cylinder Engine |
| Cylinder Type : | Opposite Piston Engine |
| Engine Air Intake Process : | Naturally Aspirated |
Your Ford Lotus engine control system detects a problem, the computer stores the diagnostic trouble
code U0991 in its memory.
To figure out what is wrong with your vehicle you must first extract the U0991 DTC For Ford Lotus.
On 1999 and later U0991 Ford Lotus engines, the instrument cluster has a built-in self-diagnostic mode that can be accessed by pressing and holding the instrument cluster SELECT/RESET button. Insert the ignition key and turn to the RUN position (but don't crank or start engine). Continue to press and hold the SELECT/RESET button (for 5 seconds) until the word TEST is displayed by the odometer. Release the SELECT/RESET button within three seconds after the word TEST is displayed to begin the self-diagnostic mode.
U0991 Ford Lotus DTC Meaning
| U |
Network Code - Problem is climate control system, lighting, airbags, etc. |
| 0 |
SAE - Generic |
| 9 |
Transmission |
| 9 |
TP Sensor Learn Not Complete |
| 1 |
PCM Stack Overrun |
If your vehicle failed a U0991 Ford Lotus test and the U0991 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses U0991 a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look U0991 DTC For Ford Lotus: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.
You can also check other Ford car models :
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The listed Ford models will give information about U0991 DTC.
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