Mgzt v6 lpg missfire

minimutly · 14th February 2018, 21:24

The v6 dropped onto 5 cylinders today, I initially thought it was due to the floods on the road, but it didn't recover.
So I drove home, via the motor factors, bought 6 new iridium ngks. Fingers crossed its a plug, next in the suspect list would be a coil, and my spares are all the older type.
The one question I have, will the 25 mile drive home have harmed the cats?

vitesse · 15th February 2018, 09:10

Not on LPG but my V6 was misfiring on one and even two cylinders at times (diagnosed by Rover54), took several weeks before I was able to replace the ECU (kit) during which time I used the car. Five years later the car’s still running well on the same cats and with good emission readings.

Regards

minimutly · 15th February 2018, 19:11

You had to replace the ecu? Wow, never heard of that before.

14th February 2018, 21:24	#1
minimutly Posted a thing or two mg zt Join Date: Mar 2014 Location: cardigan Posts: 1,087 Thanks: 28 Thanked 187 Times in 158 Posts	Mgzt v6 lpg missfire The v6 dropped onto 5 cylinders today, I initially thought it was due to the floods on the road, but it didn't recover. So I drove home, via the motor factors, bought 6 new iridium ngks. Fingers crossed its a plug, next in the suspect list would be a coil, and my spares are all the older type. The one question I have, will the 25 mile drive home have harmed the cats?

15th February 2018, 09:10	#2
vitesse I really should get out more....... Rover 75 Saloon Join Date: Jul 2011 Location: Gävle Posts: 2,576 Thanks: 395 Thanked 823 Times in 652 Posts	Not on LPG but my V6 was misfiring on one and even two cylinders at times (diagnosed by Rover54), took several weeks before I was able to replace the ECU (kit) during which time I used the car. Five years later the car’s still running well on the same cats and with good emission readings. Regards

15th February 2018, 19:11	#3
minimutly Posted a thing or two mg zt Join Date: Mar 2014 Location: cardigan Posts: 1,087 Thanks: 28 Thanked 187 Times in 158 Posts	You had to replace the ecu? Wow, never heard of that before.