Volvo AWD 850 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 4/2003 850 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

no spark off ignition coil 850 1994

My wagon will crank but not start. Also no spark from the ignition coil. I have replaced the sparks plugs, wires, distributor, rotor, Cam shaft position censor,crank shaft position censor, ignition coil and battery, I have checked the relays and fuses, they seemed ok but I just looked at them so not 100% sure. I had a 10 amp fuse that would blow every time I tried to start but it was just a warning light fuse and I fixed that. I am still getting voltage to the coil but no spark off of it. What else could cause this?????








  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    no spark off ignition coil 850 1994

    What fault codes do you have? How old is your maf?








    •   REPLY TO THIS MESSAGE    PRINT   SAVE 

      no spark off ignition coil 850 1994

      I can't seem to get any fault codes off it. It did have a completely dead battery for a month and wont start, so I think It has erased the codes.
      I have never replaced the MAF censor. I think that will be next.
      Thanks!








      •   REPLY TO THIS MESSAGE    PRINT   SAVE 

        no spark off ignition coil 850 1994

        Would the MAF keep it from sparking? There is some sort of relay where two wire harnesses plug into touching the right side of the ABS control module. Could this maybe be the problem. Also been told it might be the overload relay 15+ but I don't know how to check the relays except shake them to see if they make noise.








        •   REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

          no spark off ignition coil 850 1994

          The MAF will not keep the engine from starting. The overload relays seldom fail.

          I am still concerned regarding the blown fuse. Which one and why did it fail? But that will not/should not have an effect on spark.

          Is there voltage out of the new coil? Is the coil to cap wire seated securely?
          --
          My name is Klaus and I am a V♂lv♂holic








          •   REPLY TO THIS MESSAGE    PRINT   SAVE 

            no spark off ignition coil 850 1994

            It was fuse #15 which apply s to Radio,courtesy lamps,door warning lamps, oil level warning,(remote keyless entry). I found out this was blowing because the visor was removed and the wires were touching and shorting out.
            Would it be the ignition control module?








            •   REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

              no spark off ignition coil 850 1994

              The 94 doesn't have an ignition control module, it uses the ECU for that. You replaced the CPS, recheck the plug connection as the female end can get corroded. Also make sure the CPS wires don't touch the spark plug wires, use a zip tie if needed.

              I assume that the lead from the coil to the cap has no juice when cranking, so now you also need to check the wires from the CPS to the ECU.

              Is your starter not cranking fast enough? That could be a problem.
              --
              My name is Klaus and I am a V♂lv♂holic








              •   REPLY TO THIS MESSAGE    PRINT   SAVE 

                no spark off ignition coil 850 1994

                my car wouldnt start with a bad MAF. I replaced it and the car started right up. My car will not start with the MAF unplugged.








  •   REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

    no spark off ignition coil 850 1994

    What fuse was it?

    Working bag from the distributor there's the power stage, forward of the drivers side strut mount, make sure the ground is clean and tight.
    And there's the ignition control module to switch everything.

    I'm not sure if a fuel delivery fault would shut down ignition.
    Can you hear the fuel pumps?








    •   REPLY TO THIS MESSAGE    PRINT   SAVE 

      no spark off ignition coil 850 1994

      It was fuse #15 which apply s to Radio,courtesy lamps,door warning lamps, oil level warning,(remote keyless entry). I found out this was blowing because the visor was removed and the wires were touching and shorting out.

      I'm not familiar with power stage. What do I look for to check it? I did remove the air filter assembly to take a look at all the grounds and wires, everything looked ok.







<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.