1991 Q45 Mass Air Flow Sensor; Stalling

[Grx]

Car never had a problem with starting or stalling.
Had oil changed and they disconnected the mass air flow sensor to get to the oil filter.
Car now runs unreliably. Can stall at any time.. city street speed, while idling, it even stalled on the freeway at 60mph.
Also starts unreliably. Sometimes starts fine other times may take several attempts.
They've cleaned the connector to the sensor numerous times, no help.
Is there a place to buy just the connector?
Does it need a new mass air flow sensor now?

[BCC93QT]

From the sound of it, its the MAF. Ebay, junkyards and nico's for sale forum is the best route to go, unless you want to spend like 450$ from IOS. Pandagarage has some MAF's off some presidents i think they are the same. 79.99

[Q45tech]

The failure mode of MAF is age, vibration, and underhood heat causing solder pad problems.

Used may be no better or worse than what you have depending on its life history.

[goody90q45]

......They've cleaned the connector to the sensor numerous times, no help........

Is the metal retainer clip still there holding the connector to the MAF? Wiggle the MAF connector and see if it's fitting tight. It shouldn't move up or down more than a couple mm. Check the pins yourself to make sure they're corrosion-free and lubed with dielectric grease. They should all look like the middle pin in the picture and if not the tabs on the pins can be tightened with a small nail or push pin.

[NightRiderQ45]

It's you MAF. I would make them pay for it since they wrongly disconnected something to change the oil! This is why you do simple stuff like this yourself. My car was stalling and it was the MAF. Luckly I found one on eBay with 71k on it and put it in my car after cleaning it.