UK Auto Repair Questions?
My name is ***** ***** I am a professional here at Just Answer. I noticed that your question had not received a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.
This may be an issue with a lack of fuel to the engine.When the wheels are on the ground and accelerating the engine is under load and if there is a lack of fuel this can cause this fault here.I would check to see if the fuel filter needs replaced.If this is o.k. I would have the fuel system tested for any issues.If all of this is o.k. then I would have the exhaust tested for excessive back pressure due to a restricted exhaust component needing replaced.If these were all already checked let me know.
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Were the fuel injectors replaced at all or tested?
Does it smoke at all when drove in reverse?
This can still be a fault with fuel injectors.I have seen these act up under load more then when at idle or moving slow in reverse.
If you can I would have the injectors tested to see if one or more are faulty needing replaced.If one or more are faulty this can lead to excess fuel in the exhaust which can lead to a plugged exhaust component as well.It is a good idea to have the exhaust tested as well as the injectors.
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That is great to hear the fault has been located and repaired.If there is anything else I can help with on this here let me know as I strive to achieve a 5 star rating.