Disco2 problems

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Originally Posted by revird

No fault lights on the dash, yes it will rev in P or N just not D or R, usually only the first start in the mornings, haven't noticed it do it any other time, yes I did an auto service thinking that maybe a problem,

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I think if you check you will notice that the engine revs are under the normal idle range, at least mine is when this happens, it then will not rev in gear, but once it has been revved up past the normal idle speed in park,it's good to go....

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Originally Posted by Tombie

How did you top it back up?

Run through your process...

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Fill gearbox with oil to bottom of oil level/filler plug hole.
Select 'P' (Park)
Start engine and allow it to idle.
Move selector lever through all gear positions,
With engine idling, continue filling gearbox until a 2 mm bead of oil runs from oil filler/level plug hole.
Fit new sealing washer to automatic gearbox filler/level plug,

Ok that Eliminates that one..

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Originally Posted by bsperka

Could be that your MAF sensor is faulty. Takes 30 or seconds for the ECU to determine that there is no signal and use default values. You'll need someone with a Nanocom or similar to see what values the MAF is putting out as the D2a isn't OBD2 compliant. Or try disconnecting the MAF although you may only get the same result....

Google how to test the MAF with a multimeter, this may assist in determining if that's the cause of the issue. Can't see it being the throttle potentiometer if it works ok the rest of the time.

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Your on the ball with the MAF. I tried just about everting befor borrowing a spare MAF of a friend and bingo, problem fixed. If purchasing a replacement, don't settle for the cheapest. Go middle of the range.

Good to see its sorted. However, beg to differ with you on which MAF. Buy the same as original - VDO brand IIRC. From a reputable seller, to reduce chance of getting ripped off.

I beg to differ even more... IMO when it comes to MAF only the Genuine LR is 100% reliable, on a D2a(Eu3) engine it makes the difference even compared with the OEM VDOs... my statement is based on many live tests and comparative readings... i reiterate: Genuine LR(made by Siemens/VDO) is not the same with OEM/genuine Siemens/VDO even though they are made by the same manufacturer...the price difference is not coming only from the LR label on the box, it's more than that

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Originally Posted by bsperka

Good to see its sorted.

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Not sorted yet, still have the problem, I don't know anyone with a spare MAF, according to voltage tests as per a youtube video, mine is working fine..

I will keep trying different things..

thanks everyone for their help,

Today I bought a new MAF as some of you suggested, hasn't made any difference,
I am running out of things to try, and replies in here have dried up,

First start up of the day, when we put it into D or R the accelerator goes to the floor with nothing happening, have to put into P or N, rev then into gear to go... any more comments please..??

Hi revird,

Can you do a list of what you've tried as per suggestion so far?
Have you checked for members with test equipment (Nanocom etc) that are willing to help out a fellow member? Might be someone local to you?

One thing I could think of is if you replaced the maf with no change and unplugging is the same maybe there's a open circuit to the ecu in the return signal??

Hope you get it sorted soon!

Cheers Lemo

Here's the link for
Members with Diagnostic Equipment map (updated 1/2015)

Members with Diagnostic Equipment map (updated 1/2015)