Opel zafira 1.8 MAF-problem

[mhbih]

Hello. (sorry about bad English).
I have a problem with opel zafira 1.8 85KW x18xe1, 1999.
It have fault P100 and P110 MAF and intake temperatur sensor faulty, I changed it and same situations happend, I have chek the cables and they are too ok. I think the engine control unit is defective. Control unit is Siemens simtec70. Does anybody had a problem like this. Thanks

[obdmaster]

Yes m8 common problem the ecu isnt giving earth to maf or air temp (inside maf).

Put external earth on pin 2 at maf yellow wire, and all will be good.

[mhbih]

Ok I will try this, thanks a lot.

[mhbih]

Thanks "obdmaster",evething is ok now.