Quote:
Originally Posted by apywell
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
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The maf has the intake air temp sensor built in.
Have you tried cleaning the PCV - this sems to help the smoothness at low revs and reduce smoke on the tuned engines.
There are photos etc on my website's 75 pages.
45zs.ino (click on the banner or my signature below).
It will feel smoother with the maf unplugged but this doesn't necessarily mean the maf is faulty . It may be a bit out of spec so my mafam MF75p will probably make all the difference.
Ron