Star diagnostics run - advice on codes

[A140 WSLD]

I have an ongoing splutter problem. After regular diagnostics flagged up a MAF problem (p0100 codes) I sent the ECU off to ecutesting for repair, but since it came back I still have trouble with splutter at starting and when I try to put my foot down from idle.

On Friday I had it put on a Star machine before I sent the ECU back for testing. The fella said its probably the ECU still and to send it back as the codes P0100 -001, 002 & 004 came back again, which is a sporadic fault in component B2/5 (Hot film mass air flow sensor) which is making the signal voltage too high and then too low.

I have read stories where the problems appear as the MAF but turn out to be something else - Front Lambda Oxygen sensor for example which doesn't appear on diagnostics - and the ECU/MAF is actually fine.

The Star machine flagged all these codes - would they be relevant to my problem?

P012-011
P0303
P0600-001
P0600-013
P0340-001
P0100-01 (discussed above)
P0100-02 (discussed above)
P0100-04 (discussed above)

See attachment for details. Are these anything to worry about/relevant?

Many thanks in advance for any advice

 

[Howard]

Doesn't the operator of the STAR machine have any experience of working on MB's ?

I would send the ECU back to ECUTesting , as it does seem to point towards the MAS failed again.

 

[WG M-B]

Quite often it has to be boot strapped to reset the values when refitted

 

[jaymanek]

Yes there was some procedure to go through on these when fitting the MAF/ECU - can only be done on star.

 

[Howard]

Yes , i spoke to Olly about bootstrapping ours when i refitted the ECU/MAS , but in the end , it didn't need it.

 

[Mercgaz]

Hi does this make your car jolt on odd occasion and/or revs surge slightly on odd occasion?