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Engine light blinking

Everything on the Volvo S80. Sometimes called an "executive car", the S80 was Volvo's top-of-the-line passenger car. P2 platform.
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litalicious
Posts: 5
Joined: 7 March 2009
Year and Model: 2000 S80
Location: Virginia

Engine light blinking

Post by litalicious »

The engine light is blinking and the car is putting. Help!?!?!?!?!

Hal Boudreau
Posts: 6
Joined: 28 November 2012
Year and Model: S80 AWD 2004
Location: Boston, Mass

Post by Hal Boudreau »

Sounds like you and I have a simalar problem, but I'm getting a little more info from my message window.... I am going into the dealer monday.... hope i have some info to post

boosted5cyl
Posts: 1100
Joined: 29 January 2010
Year and Model: '98 V70 T5, '99 S80
Location: St. Paul, MN
Been thanked: 1 time

Post by boosted5cyl »

You have a misfire. Commonly caused by a faulty coil or two. Other causes include worn plugs, clogged injectors or issues with the wiring to coils or injectors. Likely an easy DIY fix. Get the codes pulled and see if it reveals which cylinder(s) are misfiring. If you swap the coils between a misfiring cylinder to a good one and the misfire moves with it, bingo.
To find out which cylinder is causing the issue (assuming its running rough at idle too) is to disconnect the electrical connector for the injector for each cylinder and observe the motor. Turns out this is called a power balance test..

In this video he disconnected the coils, but I would reccomend you do it with injectors instead. Easier to get to, safer for the motor and, most importantly, safer for YOU!

Prolonged driving with a misfire can damage\clog your cats and O2 sensors, so keep driving to a minimum until you get it figured out. Or at least, if you find out which cylinder is misfiring, disconnect the electrical connector for the injector on that cylinder until you get the coil replaced.
'04 XC90 2.5T AWD (Angus) 134K.
'99 S80 T6 (Medusa) 214k. On borrowed time LOL
'98 V70 T5 (Vivienne). RIP @ 228K. Spun rod bearings.

litalicious
Posts: 5
Joined: 7 March 2009
Year and Model: 2000 S80
Location: Virginia

Post by litalicious »

Thank you so much!!!!!!

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