Login Register

2002 S40 ignition coil/wires

Help, Advice, Owners' Discussion and DIY Tutorials on S40 and V40. In this forum you'll find S40/V40-specific owners asking and answering questions on maintenance, ownership, repairs, tutorials and almost every do-it-yourself thing you can do to save money owning these Volvos.

1996 - 2004 S40
1996 - 2004 V40

Post Reply
xrymary4
Posts: 2
Joined: 16 November 2012
Year and Model: 2000 V40
Location: sf bay area

2002 S40 ignition coil/wires

Post by xrymary4 »

My S40 threw a P0303 code last year. I replaced the ignition coil and spark plugs, but had trouble fittitng the wire plug at the end of the harness that fits back into the coil because the wires were fraying and coming out of the "socket or plug" that fits into the ignition coil. I managed to pinch the wires together, and it worked. Till Now. I am getting the same code and feel sure the wires on this end of the harness have frayed enough to cause a misfire, cylinder 3, same as last time. What is the part to replace this wire harness end? Can i cut the wires and repair it somehow? The Volvo dealer couldnt recommend a part, except a whole new wiring harness. any help would be appreciated! thank you.

MattReed59
Posts: 3
Joined: 16 November 2013
Year and Model: S40, 2003
Location: Chicago

Post by MattReed59 »

Having a similar problem with my 2003, no codes or miss fires but when I changed the plugs I noticed that much of the insulation is gone! Someone (it's used and I got it recently) has used electrical tape to fix-up a large section. I can't find a replacement harness anywhere, looks like I'll be manufacturing my own. I did find a site that went into great detail on the engine wiring harness of 240 and 740 80 - 88 Volvos. Apparently they were known to loose their insulation also.

Post Reply
  • Similar Topics
    Replies
    Views
    Last post