Z4 (E85) running like a dog!

U

Unclepip

Member
Hi There, E85 is running like a dog - I have diagnostic tester on it and it reports cylinder misfires/ mixture issues across all cylinders (see attached) screen dump. Has anybody got any pointers please - coil pack? Any suggestions where to start welcome.

Thanks

Phil
 

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I would start by checking the rubber elbow pipe between the airbox and inlet manifold , a common cause of massive air leaks.....They split
 
I’d be changing all the coils out for sure (assuming plugs are in good condition)
 
My money is on a vacuum leak (like already said, check the rubber elbows, but there are also some rubber bungs at the end of the manifold that can leak) or something with MAF/O2.
 
I had a coil fail a few weeks back, £17 from ECP and 5 mins to change.

Doubt your issue is a coil though. And more than one failing at the same time is very unlikely.

Split pipe sounds more probable.
 
I'm with Guido on this one.
A) cos he's a clever Dutchie and is usually right 8)
B) cos I had similar codes shown before I replaced my intake boot. However, my throttlebody was also knackered so I'm not sure if that was related/contributory to the codes. :wink:

Swap coils around is cheapest canceller then replace intake boot. Look for splits/holes at the joint of the smaller outlet.
Good luck. :thumbsup:
 
HI Chris,
I am using the Cable Shack V4.3.
I am no expert but it seems very versatile, the support I had fro the software developers was fantastic.

Hope that is helpful, feel free if you have any further questions, I am no expert.

Phil
 
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