On my 87 corvette I have a bocsh MAF and I was told how to check my harness to maf is to disconnect plug from sensor and turn ignition on.I should have 12v on plug at Prpl wire on harness but I have 0v. I do have chassis grnd on BLK/wht wire. Only when i start car I have battery voltage 13v on purpl.. I plugged back into MAF sensor and probed wires with engine running. I have the 13.8 v on purple wire.but nothing on drkgrn wire (sensor wire).when I ground the annolog black/pnk wire car shuts off. Does this mean ECU is bad on this curcuit?
any help on this matter would be appreciated..
Also I am getting a 33 and 36 code on dash.I just replaced both MAF relays also..
thanks