i have a 2000 volvo s80 t6 and i cleaned the throttle body and vacuum leaks and the engine still surges does my software need to be updated
Jul 25, 2011 at 10:27 PM
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JIS001
AUTOMOTIVE REPAIR CONTRIBUTOR
3,412 POSTS
Most likely your throttle has now failed? You can try removing the fuse for the ETM in the engine compartment for 5 minutes and put the fuse back on to see if that helps it relearn but if it dies not proper diagnostic will need to be done to see if the throttle is faulty or something else?