Good Morning,

My wife filled up our '99 S70 yesterday,forgot to put the gas cap back on and drove about 25 miles before the check engine light came on.

I've heard it can be reset by disconnecting the battery for about 60 seconds. Is this appropriate? Is there a better way? Or do I have to pay my local dealer to do it?

Thanks
Wade

If the cap caused the CEL to go on, tightening it will cause it to go off after about 3 or 4 cycles of engine start, engine stop.

Klaus
--
(V♂LV♂s 1975 164, 1995 854T, 1998 V70R)

It should reset by itself after a few start-stop cycles.

I wouldn't do anything unless it's still on after a week.

-BTC

'98 V70 T5 5-speed, 167k mi, front IPD stabilizer bar, rear factory HD bar, Bilstein HD, Volvo strut tower brace and skidplate, e-codes, XC grill, Lidatek LE30, V-1, Mobil-1 since new

"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at or repair." -- Douglas Noel Adams (1952-2001)