Had a slightly odd one yesterday. Left Kent for Theale, Berks just around 5.15 am for a work appointment in Theale, Berks - lovely blue skies. I had a full tank of Esso (95) from my regular garage. Uneventful journey as far as Bracknell, few showers of rain and heavy cloud cover, so had dipped beams on and wipers intermittently; Friday traffic not that bad so cruised with the outside lane traffic which in the +8 is around 3,000 rpm give or take. As I needed to get back home later without stopping, I topped up the tank at the Shell garage on the A322 passing through Bracknell, another regular stop (again 95 octane) and the headed out of Bracknell on the A329M still overcast so had dipped beams on again (mix gear work, accelerate, cruise, accelerate, cruise for about 5 miles) and turned off onto the M4 towards Reading. I merged into the traffic and sat on the inside lane for a while as traffic was heavy at around 65-70, then in 5th geared accelerated to move into middle lane, but the engine fluffed and wouldn't accelerate. I eased off and car continued to cruise normally. I repeated this 3 times with same result and then at the next go it accelerated as normal. I then slowed and tried again and had the same problem 3-4 attempts and then it cleared again and I then ran on without any more problems and exited the M4 at Theale drove through the business park as normal and arrived at our offices. I left at 3pm and drive home in nice sunshine without any problems whatsoever apart from a few traffic holdups. Not sure where to look and if this was temprary, or signs of a problem brewing. Don't really know if this is fuel or sparks related, or which sensors may be involved, or some water/dirt in the fuel system . I had the fuel related relays changed last year, fitted a new Odyssey PC925 (28Ah) as recommended by this group for the last 800 miles (ammeter was shows a good rate of charge (14 no load 13.5 with dipped beams and demister fan), It was serviced back in May, so not sure where to go next. Its a '95 3.9 hotwire with twin Librands exhausts, Tornado chip, K&N filter and the fuel pressure runs a bit higher than standard as I have a remote fuel pressure valve fitted. All these parts have been on for 2-3 years. Thinking back over the 4 years I have had the car, very very occassionaly (I mean 2-3 times in 4 years) I have had a very minor cough when accelerating under load, but this was a pronounced wheeze in comparison. It felt more fuel related to me, maybe a MAF meter malfunction? Any thoughts? Richard M800RGN+8
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