Hello all been having this problem with the zeds idle, on tick over the revs are up and down like a lumpy cam nearly stalling doesent jump up past 1000rpm.

But when you stick it in drive I accelerate normally and the engine holds back so give it more gas but still the same? then the turbos start doing all the work, It gets worse if engines cold then its a nightmare! smells of fuel too!

I know the yellow connector on the metal water pipe, the wires are a blueish colour so need to chop them and rewire, could this be the main problem for idle? or maybe MAF sensor??

cheers in advance!

Sounds more like a boost leak but could be the temp sensor or maf. You got access to a consult?

No access to a consult, I havent noticed any strange hissing noises from under the bonnet?

how do I set the maf sensor up? I know you use a volt meter? but thats it!

You can check your MAF is reading in spec with a volt meter.

Fold back the rubber cover so you can see the pins. There is a unused pin, go to the other side and its the second pin in (pin b).

Check voltage between pin b and ground.

 

It should read 0.8v ignition on (engine stopped)

and approx 0.8 - 1.5v Idle (warmed)

 

I have just checked mine recently like this and the manual is still up on my screen at the right page :)

You can check your MAF is reading in spec with a volt meter.

Fold back the rubber cover so you can see the pins. There is a unused pin, go to the other side and its the second pin in (pin b).

Check voltage between pin b and ground.

 

It should read 0.8v ignition on (engine stopped)

and approx 0.8 - 1.5v Idle (warmed)

 

I have just checked mine recently like this and the manual is still up on my screen at the right page :)

 

Excellent mate cheers! will give that a bash in the week!

Replaced wires on temp sensor if its called that? the yellow plug! it made a difference revs stopped jumping around and drove ok but when I used it to take kids to school this morn it stalled after start up and the revs were up and down again but not as bad? when driving its like a flat spot with loads of boost and little power till you plant your for on the gas and it shoots off, So could this be the maf sensor or something else??? must borrow volt meter to check? but could it be something else???