MY VEHICLE ENGINE IS UNESTABLE IT ACCELERATE AND DECELERATE ALONE. on 2001 Volvo V70 XC

WHEN DRIVING THE VEHICLE IT ACCELERATES A LITLE AND DECELERATE MAKING IT A LITTLE UNESTABLE TO DRIVE AND THE DASH LIGHTS LIKE WHILE IT HAPENDS THEY GOES BRIGTHER WHEN ACCELERATE AND DARKER WHEN DECELERATE BUT IT DOES NOT SHOWS ANY CODES, WHAT CAN IT BE? IT LOOKS LIKE A SENSOR(OXIGEN , MAF) PLEASE HELP!!!!

by in Laredo, TX on August 21, 2010
1 answer 2 comments
ANSWER by on August 21, 2010
First thing to do is have the diagnostic codes checked. Once you get the codes we can help but without them it's a guessing game.
COMMENT by on August 21, 2010
Thanks, I will put the computer to check codes and I will get back to you with them asap today..
COMMENT by on August 21, 2010
Perfect, thanks!