Question about 1994 Volvo 960

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Put 1993 2.9 liter in a 1994 car

Tested all sensors all computers wiring harness for continuity all check out fine. no spark. the motor has coil packs all good. this is the straight 6 engine.all components were checked per the manual without the power on so computers werent spiked. are these computers compatible? could it be ecu module. my research tells me flywheel position can be problem but when put it in it had hearing ignition control module? is this different from computer on top of steering column? i have been working to solve the no spark problem for quite some time now. any suggestions would help.

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  • captkwashing Nov 28, 2008

    bret no i have no codes it hasent been started yet since putting it in the car . do you need a obd code reader ? where is the port located? i will try replacing the temp sensor and will keep you posted on my progress thanks for the help .

  • captkwashing Nov 29, 2008

    what a link !! thanks sooo much im learning alot about this car! i bought this car thinking i would only have to replace the head come to find out two of the pistons had half dollar holes in them. ibought a used 2.9 liter motor from a junk yard. put the motor in and havent been able to get it started. had a volvo garage look at it to no avail 300 bucks later still no spark.i think they are stringing me along. with this new information i can try to get it running myself. again thanks for the help!!

  • Anonymous Dec 05, 2008

    bret captkwashing i tried the ground on the motor mount no such luck. funny we replaced that mount prior to putting the motor in .getting codes 131,223,411,213 will any of these cause another. in other words witch one should i go after first? is the flywheel pinned on these motors? 2.9 liter 1993. remember i put this in a1994 car.

  • captkwashing Dec 07, 2008

    bret finally was able to get the car home. tried the ground to the motor mount no such luck.getting codes 131 ,223,411,213. will any of these codes cause another one? do the flywheels have pins on these engines? even so is it possible to install the flywheel incorrect or is the pick up alloy different on some flywheels?still have a no spark condition.



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The coolant temp. sensors were a real problem on this year/model, and will cause a no start condition. You will often get a 1-2-3 code stored. Have you read the codes?


Posted on Nov 28, 2008

  • Bret Bodas
    Bret Bodas Nov 28, 2008

    Here is a link to instructions on how to read the codes. They are for an 850, but it is the same for your car. You will only need to check terminal #2 on the test port.

    Have you done any other work to this car before this happened?


  • Bret Bodas
    Bret Bodas Nov 29, 2008

    OK, here is a possibility. Under the driver side motor mount is the ground wire for the ignition system. This nut and bolt that secure the wire is quite difficult to get to tighten up, and then you will not have a ground for the coils. It is about 2 or 3 black wires combined into one eyelet connector,at the rear of the mount.

    Good Luck,




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