Mechanics

XE 1.8L AUTOMATIC THE CAR HAS THE FOLLOWING SYMPTOMS IDLES UP AND DOWN IN PARK AND NEUTRAL FROM ABOUT 1525-1825 RPM IDLES HIGH

2002 Nissan Sentra • 155,000 miles

2002 nissan sentra xe 1.8L automatic


THE CAR HAS THE FOLLOWING SYMPTOMS

IDLES UP AND DOWN IN PARK AND NEUTRAL FROM ABOUT 1525-1825 RPM

IDLES HIGH MOST OF THE TIME USUALLY IN PARK AND NEUTRAL IT IDLES STABLE AT AROOUND 1500 RPM

NO POWER. I FLOOR IT AND IT TAKES LIKE 5 SECONDS FOR IT TO PICK UP

SOMETIMES WHEN I PRESS THE GAS IT BOGS DOWN AND ONCE IN A WHILE STALLS BUT USUALLY THE RPM SHOOT UP

THESE ARE THE SYMPTOMS I'VE NOTICED. IT JUST STARTED HAPPENING

THE THROTTLE POSITION SENSOR AND AIR CONTROL VALVE WERE CHANGED WITH A NEW ONES. BUT THE PROBLEM HAS NOT BEEN SOLVED. A COMPLETE NEW THROTTLE VALVE UNIT WAS INSTALLED BUT THE PROBLEM PERSISTED.
PLEASE CAN YOU BE HELP AS TO DIAGNOSING THE PROBLEM.




please help. Thanks
Avatar
DBLEWUSHIE
July 3, 2012.



Is the MIL indicating and have you scanned for trouble codes?

KHLow2008
Jul 3, 2012.