25/11/2025
šŖ° The Most Expensive Fly in Queenstown šŖ°
(Subaru XV ā No Start Call-Out)
You wonāt believe this oneā¦
Got called out today for a Subaru XV that refused to start. It would fire for one second⦠then violently shut itself off, like it owed someone money.
Plugged in the scannerā¦
š 60 fault codes in the ECU
š And more across almost every control unit
At this point Iām thinking:
āEither this car is possessed⦠or something unbelievably stupid is going on.ā
Customer says it was ājust serviced.ā
Hmm⦠interesting timing.
Pop the airbox open and straight away somethingās off ā
The air filter isnāt seated properly, small gap down the side, maybe cheap aftermarket, maybe wrong size. Either way, something wasnāt filtering anything.
Removed the filter ā still the same issue.
So next suspect: Mass Air Flow Sensor.
(If the engine canāt measure air, it throws a tantrum.)
Pulled the MAF out and⦠mateā¦
I genuinely had to stop and stare.
There it was.
A full-grown fly wedged perfectly between the two sensor pickups like it had checked in for a long-term stay.
One flyā¦
ā¦single-handedly nuked a Subaruās entire electrical sanity.
Created a fault list longer than my shopping list.
Shut the engine down.
Triggered chaos across the CAN network.
All because it bypassed a misaligned air filter and kamikazeād straight into the MAF sensor.
Removed the fly.
Cleared codes.
Car: āSweet as, bro.ā Starts and runs perfect.
So yesā¦
Today I was defeated ā and then victorious ā against one airborne insect with main-character energy.
ššØ Moral of the story:
Cheap filters cost more than good filters. And Queenstown flies are built different.
ā
Queenstown Mobile Mechanic
If your Subaru ever gets outsmarted by a fly, you know who to call. š ļøš