Summary: ODI has sent four irs to Nissan (11/29/84, 10/10/85, 4/9/86, &11/14/86).etf has tested 6 Nissan vehicles and was unable to duplicatesudden accel.ODI inspected 9 vehicles and all operated normally.all15 vehicles were reported to have been involved in sudden accelerationincidents.analysis: There are three possible causes of sa. (1) the driver pushed onthe accelerator instead of the brake pedal, (2) the vehicle was unrespon-sive to the drivers initial application of accelerator pedal pressureso the driver presses harder and the vehicle suddenly and unexpectedlyaccelerates at a faster rate than anticipated and with the close proximityof other cars or buildings the driver is unable to recover in time toavoid an accident, (3) floor mat bunches up and interfereswith accelerator pedal.status:by letter dated 6/29/87, Nissan announced the recall OF183,519 vehicles (87V-098) to install a shift interlock kit.an auditsurvey of the recall will be initiated by NHTSA in the fall of 1988.NHTSA wrote to Nissan on May 24, 1988 concerning the effectiveness of theshift-lock device installed during recall campaign 87V-098.a responseis due on August 16, 1988.===