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Thread: Help please

  1. #1
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    Default Help please

    I had a fault a few weeks back which was a misfire on cylinder 1, i replaced all 4 of the sparkplugs and the coilpack which fixed the problem and the veccy was running great.

    This weekend i was going along the mortorway at 80 when all of a sudden i felt the car misfire and go into limp mode, i took the car to my local garage who hooked it up onto the tech 2 and got 2 codes for misfires on cylinder 1 & 4. The guy at the garage thought it was the coilpack so i took the coilpack back to hwere i bought it and swapped it for another seen as it had only been going for 2 weeks .

    Put another new coil pack in and the the car was still running like it was in limp mode, hooked it back up to tech 2 and no stored codes so while hooked up to tech 2 i revved engine up to 4500 rpm where it then began to fall and engine light came on and same fault codes for misfire on cylinder 1 & 4 reoccured.

    Im not sure where to go with this now as i have the same fault codes on 2 different coil packs, any suggestions please?

  2. #2
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    UPDATE: The garage has confirmed that i need a new catalytic converter has it has pretty much disintergrated and was causing the large loss in power and misfires.

  3. #3
    North West Regional Organiser paulvectrac's Avatar
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    Vehicle : vectra

    Trim : vxr

    Engine : 2.8 v6 turbo

    Year : 2007

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    well atleast you no what it is mate my addvice is a decat now cats a very expensive mate
    Vectra vxr custome remaps egr deletes dpf and diagnostic work all remaps are custome bench tuning avalible all genuine equipment PM for info

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