Misfire when revving gently (inc video) FIXED

Started by SurreyMR2, November 7, 2024, 20:26

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SurreyMR2

Further to my other issue with the squeak I have a misfire.

2001 UK car with 58k on the clock.

No faults logged, tried a 2nd MAF but this is a used not tested item.
Cleaned MAFs
Sprayed contact cleaner all around inlet pipes and no change in idle.
Plugs all good
K&N panel was fitted, removed and no change.
When driven it drives perfectly after the misfire.
On super unleaded.

Video link below.

1st & 2nd revs both gentle throttle pedal.
3rd & 4th stabbing throttle. Much less misfire on these 2 revs.

Video here https://youtube.com/shorts/C1RX41ngVVE?si=SVHUIDfaPXpml3vU

I have ordered a new MAF as genuine on eBay for under £40 and was last one.

TIA

Andy

SurreyMR2

Read about people resetting ecu after MAF change by disconnecting battery for a few mins.

Did this and problem sorted.

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