MY 1998 SUBARU FORESTER HESITATES ON ACCELERATION IN THE LOW RPM RANGE. ONCE OVER ABOUT 3000 RPM, IT RUNS FINE. ACCORDING TO A TECHNICAL SERVICE BULLETIN RELEASED BY SUBARU IN JAN 1999, #11-53-98, THIS IS CAUSED BY THE ENGINE CONTROL MODULE INCORRECTLY INTERPRETING VIBRATIONS IN THE ENGINE AS SKIPPING AND READJUSTING THE FUEL …
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MY 1998 SUBARU FORESTER HESITATES ON ACCELERATION IN THE LOW RPM RANGE. ONCE OVER ABOUT 3000 RPM, IT RUNS FINE. ACCORDING TO A TECHNICAL SERVICE BULLETIN RELEASED BY SUBARU IN JAN 1999, #11-53-98, THIS IS CAUSED BY THE ENGINE CONTROL MODULE INCORRECTLY INTERPRETING VIBRATIONS IN THE ENGINE AS SKIPPING AND READJUSTING THE FUEL FLOW RATE. THE FIX REQUIRES INSTALLING AN UPGRADED ECM--TO THE TUNE OF WELL OVER $1000. THIS HESITATION PRODUCES AN UNSAFE SITUATION BECAUSE THE CAR MAY AT ANY TIME REFUSE TO ACCELERATE, OR ACCELERATE SUDDENLY WITHOUT WARNING.*AK
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