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apywell · 10th January 2007, 19:12

Interesting thread this is.. my 75 has been suffering from lumpy running (at about 1500 revs) and at tickover. But this only happens from time to time (but daily). I used to fill up with Diesel at Sainsburys. Then last week I filled up at a BP station and put some REDEX Diesel performance stuff in it that also cleans injectors atc... I have noticed very little difference only that my MPG seems to have improved. A shame really because I had hoped it would have cured the lumpy running forever......

Then the other day I noticed that the lumpy running never appeared at all, but that it was a warmer day (about 11 degrees).

Could it be the MAF? If someone could tell me (or show a pic) where the sensor is, I'll unplug it to see if she runs smooth again.

Is the MAF sensitive to the outside temperature?

cheers
Alan

10th January 2007, 19:12	#20
apywell Gets stuck in Rover 75 Saloon. 2.0 Diesel Auto. Connoisseur SE. Join Date: Nov 2006 Location: Derby Posts: 723 Thanks: 0 Thanked 0 Times in 0 Posts	Interesting thread this is.. my 75 has been suffering from lumpy running (at about 1500 revs) and at tickover. But this only happens from time to time (but daily). I used to fill up with Diesel at Sainsburys. Then last week I filled up at a BP station and put some REDEX Diesel performance stuff in it that also cleans injectors atc... I have noticed very little difference only that my MPG seems to have improved. A shame really because I had hoped it would have cured the lumpy running forever...... Then the other day I noticed that the lumpy running never appeared at all, but that it was a warmer day (about 11 degrees). Could it be the MAF? If someone could tell me (or show a pic) where the sensor is, I'll unplug it to see if she runs smooth again. Is the MAF sensitive to the outside temperature? cheers Alan __________________ If there's one thing I've learned, it's that life is one crushing defeat after another until you just wish Flanders was dead. Now has an S-Type 2.7 diesel V6 twin turbo with Jag voice, bluetooth, sat nav, front and rear park assist, electric fold mirrors etc, etc, etc.....