I have just bought a volvo 940 GLE and everything seemed ok bar the lambda sensor light still on after i put a new one in, anyway i came accross a big hole in the air intake tube just after the air mass meter and just on the other sensor in the other tube, what is that sensor cause it needed a good clean it was nearly blocked. so i replaced the tube and she seems to have lost a lot of torque and occasionally seems to run erratic at low revs and stall. I`ve tried running her with the air mass meter disconected and she just stalls straight off. can anyone help.
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