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2017 Macan GTS Misfiring Issue

satusai

satusai

PCGB Member
Member
Has anyone experienced rough misfiring at idle speed or when slightly pressing accelerator when pulling away/reversing/stop start traffic? Car almost stalls and sounds sort of burbling/rough? Car does it when at temp and only at low speed
Porsche Exeter think it might be cyl bank 4,5,6 but no major fault codes have been registered to support this enough for warranty claim.
Help>>>
 
Could be intermittent failure of a) ignition coil pack or b) faulty fuel pump leading to fuel starvation.
A couple of issues to check for anyway. 🤔
Regards,

Clive
 
My Cayman GTS did this a couple of months ago. Running rough under 2000 rpm and nearly stalling every time I came to a stop. Ultimately diagnosed as a fault with the camshaft solenoid on bank 4,5 and 6. This was replaced and car now running fine.
 
Just to add, nothing was shown on the dashboard for about 100 miles, then CEL came on and then, within 10 of the dealer, further warnings - proceed to service PDQ.
 
satusai said:
Has anyone experienced rough misfiring at idle speed or when slightly pressing accelerator when pulling away/reversing/stop start traffic? Car almost stalls and sounds sort of burbling/rough? Car does it when at temp and only at low speed
Porsche Exeter think it might be cyl bank 4,5,6 but no major fault codes have been registered to support this enough for warranty claim.
Help>>>
Click to expand...
A fault code CANNOT be a prerequisite for attention under the warranty! Kick up a fuss and take someone out to experience it.
 
Thanks all. Update for Porsche Exeter is they've discovered a faulty throttle valve which they're replacing. Let's hope this fixes it.
 
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