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Fi codes? How do I read the blinks...

9.3K views 2 replies 3 participants last post by  davidrancourt17  
#1 ·
1 short blink, 2 long blinks, 8 short blinks... then repeats.?
 
#2 ·
The long blinks are decimal 10 places, the short blinks are 1s places.
Two long blinks is a code 20 or faulty EPROM in ECU (engine runs but doesn't hold diagnostic data).
One short blink is code 1 or MAP sensor problem or bad connection.
Eight short blinks is code 8 or TPS (throttle position sensor) problem or poor connection.
Also, the ECU maintains stored codes from the past unless cleared.
So it may be possible you're looking at codes from a previous problem.