misfire - coils, just some info

[k1elliott]

Hi Gang

I've been enjoying wonderful zero-issue cruising for the year until I thought I felt a miss about a month ago. Got worse. MIL showed up. P0352. Coil cylinder #2. Seems like these buses chew through them. Not a problem. I'll sort it....

1: - Holy crap - the cost of these things ! 

2: - I made a mistake and figured that #2 was at the rear. Had a great time last weekend tearing down. <-- Can one of you good people confirm for me that #2 is in fact font nearside as per this handy pic I found on search

 

So, given the ballache to get at the back, I got 6x NGK plugs and 3x Hella coils so that it's done for the long term

https://www.motor-doctor.co.uk/products/14760111-ignition-coil

https://www.motor-doctor.co.uk/products/10039349-spark-plug

 

Techstream

Got mini VCI from that auction site packaged with v16 Techstream. I spent ages getting an XP virual machine going only to figure out that you don't have to do that messing about any more. Anyway, hooked it up on a windows 10 machine just now and worked a treat. Surprise, surprise, cylinder #2 is still missing.

I'll replace the #2 coil with one of the ones I took from the rear.

Even with the continued miss (especially on cold start), it's running very well after new plugs and new coils in the rear bank.

 

I'll update once I sort #2.

Please someone put m out of my misery re: location of #2.

Cheers all

[katabrontes]

I had one fail in 2010 soon after I bought my 2006 350.  It was fixed in France although it took two visits to the main agent to diagnose it.  Fortunately it was also one of the front bank so easy to fit.  No problems since so I wouldn't worry too much.  Just bad luck. 

[k1elliott]

#2 Sorted. 5 min job.

Misfire count = 0

Lovely 

[Tomtit]

For the benefit of others, the Haynes workshop manual shows that the numbering of the cylinders is as shown in Ken's post above.

[nowakkam]

Removing the intake helps a lot and to be fair itwas not that difficult on mine (1MZ), just had to make sure to cover and tape the head to not have to fish out a bolt or something worse out of there. Once the intake is off it's a piece of cake to get all 3 out of the back.

Worth checking how tight are the plugs as well - previous owner on mine had them put in so loose that I unscrewed #3 and #5 plugs with my fingers without any force, and coils barely touching (3 weeks of trying to figure out why everytime techstream is hooked up the misfire moves somewhere else :))