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About veeg33

  • Rank
    Z Veteran
  • Birthday June 9


  • Location
    West Yorkshire

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  1. I checked the coil packs by disconnecting one at a time, but thinking about it now, it might not be misfiring when i checked them hence I could not identify which cylinder is playing up as each one I disconnect made a change in engine noise. Car passed MOT today, with lots of luck for Zed's god, the misfire went away when it was on for emission test. Mechanic checked everything he could at that time and found nothing. Guess what, I started to misfire when I drove off..........lucky it's lockdown now meaning I can do without my zed for now. I will do the coil pack/ plugs check again this weekend and hopefully I can find the offending bugger! Not going to buy any new injectors until I'm sure that's the issue. Will checked everything step by step, coils, plugs and injectors. Hopefully I don't have to go to injectors as it will more screws to remove to get to it. Thanks for the info, much appreciated.
  2. MOT tomorrow, so I'll leave it to the mechanic to diagnose the issue. My money is on injectors at the moment.
  3. Not so great after all. Back to square one. Took it out for a drive and 5 mins into the drive, misfiring again. Makes me think it could be wiring issue? but that doesn't explain why swapping the MAF sensor seems to fixed that issue. Or having a think about it, is my electric system sending high voltage/amp to the MAF when i drive hence it has short my MAF sensor? If that's the case what's next? But this doesn't explain why the misfiring suddenly goes away whilst waiting at the traffic lights. Going to chuck in a bottle of Redex since i have one in the garage.
  4. After some advise from Alex aka ZmanAlex, I've managed to get hold of a spare MAF from an ex-colleague that lives 15mins away from me. His zed is in pieces now (engine rebuild) and far from being complete hence he has kindly borrowed his MAF sensor. Start up with current MAF sensor, misfiring. Switch off, swap to another MAF sensor, no more misfiring. Switch off, replace with old MAF sensor, misfiring. Swap again to another MAF sensor, no misfiring. I think this is now pretty conclusive that my MAF sensor is playing up.
  5. Was ok until Friday when I was doing nursery run =(. Started up normal, drives normal, started to misfire when I stopped at a traffic light about 3milea away from home. ECU reset at daughter's nursery, no luck. Drove slowly back to house, 2 miles in the zed is alive again. Cleaned the MAF again yesterday and also cleaned and oiled my popcharger at the same time. Assembled everything back on, started up normal, 2mins in the misfiring starts again. Maybe wiring or loose connection somewhere? I wanted to get a new MAF to try but no stock within my area (GSF or ECP). Hoping someone or @ZMANALEX can give some advice what else to check as I have MOT booked next week Tuesday. Surely the misfiring will fail MOT due to emission?
  6. I'm glad to see your updates!! Keep them coming when you have spare time away from your day to day job!!
  7. Nice weather today hence decided to check what's causing the issue. Remove MAF sensor, cleaned with contact cleaner, reassemble - OK at start up but start to misfire again after 5 mins. **edit - Someone on google search said best to leave it to dry for 20-30mins (which i didn't follow as i thought contact cleaner fluid from the spray usually dry up quick) Remove engine cover and strut bar - Start up and disconnect one coil connector at a time. All of them made a change of engine tone. Did a ECU reset and start up again...… No more engine light and car is idling normal again. Went for a quick 2 miles drive, all normal and no engine light. Reason for cleaning MAF - Saw on YouTube, a video of cleaning MAF and one of the reason he said - If you have aftermarket filter that uses oil, oil can contaminate the MAF hence regular cleaning is good. Yes, I have JWT popcharger hence my conclusion is the dirty MAF sensor. Will report back if issue comes again then I'm back to the drawing board.
  8. Small update - started the zed up to try to get a better video. Car started absolutely fine and normal. Managed to warm up until engine speed dropped to below 1k rpm, all good. Did a quick around the block, no problem. When I reach home, reverse to my drive. I noticed engine warning light, P0300. Turn engine off, then on again. The same idle issue came back. I guess I need to unplug each coil to identify which one to replace or could it be the MAF?
  9. Driven about 7k to 8k with it. Vibration seems to change with engine speed, higher rpm higher vibration I wasn't dare to put my foot on the throttle, incase I might damage something. Mine doesn't normally smell so rich or petrol. Standard cat with Invidia Gemini exhaust.
  10. Standard clutch and flywheel replaced around 5k miles ago. Vibration higher when I touch the throttle to rev up the engine. Started the zed again, heavy smells of petrol from the exhaust. I will upload video in next 2-3mins.
  11. Thanks mate. It's a DE. Plugs were swapped before I purchased it. Only says spark plugs on the service invoice hence no idea but will remove them to see what they are this weekends. Spoken to a local mechanic on phone when I book my mrs's car in for annual service, he don't think it will be coil packs since I'm not getting any warning light. Will try/rest what you mentioned above over the weekend to diagnose.
  12. Since lockdown begins earlier this year, I've been working from home and only use my zed once/twice every 2 weeks. The last time I drove it was a week ago and everything is normal. Started it up this morning,all seems normal. Let it warm up while I wait for my daughter to get ready, got out the car and notice weird exhaust sound/note when it is warming up, seems to be a tiny bit louder and popping constantly (not the best technical term and a bit difficult to explain) Normal will be like mmmmmmmmmm (constantly but no audible pops, now is more like constantly bop bop bop bop bop. When I got back into the car, the steering wheel has high vibration and I can feel it from the footwell as well. No warning lights at all. Drove it off my drive and car doesn't seems to drive well. Because of the vibrations I'm getting, I suspect one or more cylinder is not firing hence causing the imbalance. Faulty coil pack(s)? But I'm not getting any error code. Can I just swap one or recommended to swap all? Seems easy enough to get them out but is this a sign others might go too? Thinking about it more, maybe spark plugs? Last time it was changed at 63309 miles, currently at 89940 - Done around 26k miles Any idea what to check will be much appreciated before I start to take things apart and order replacement parts.





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