New custom Cobb tune now # 3 cylinder dead?
#16
09-14-2017, 02:56 PM
Basic Sponsor
replace the coil with a new one
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#TeamAIM
997TT SilverSpool - 210.8 mph 1/2 Mile WR Apr 2019, 9.2 @ 168 mph 1/4 Mile Manual World Record , 3.15 60-130 mph , 2.72 100-150 mph , 1400whp E85
996TT SpoolBus - 204.6 mph 1/2 Mile 996TT WR Aug 2018, 9.5 @ 154 mph, 3.23 60-130 mph, 2.5 100-150 mph Manual Porsche World Record, 1400whp E85
997TT SlowBerry - 205.0 mph 1/2 Mile WR Nov 2018, 9.7 @ 170 mph 1/4 Mile , 3.2 60-130 mph , 2.4 100-150 mph , 1420whp E85
ESMOTOR | DO88 | TPC DSC | SYVECS | COBB | IPD | KLINE | XONA | AMS | ID | ERP | SACHS | TURBOSMART | CSF | DODSON |
#TeamAIM
997TT SilverSpool - 210.8 mph 1/2 Mile WR Apr 2019, 9.2 @ 168 mph 1/4 Mile Manual World Record , 3.15 60-130 mph , 2.72 100-150 mph , 1400whp E85
996TT SpoolBus - 204.6 mph 1/2 Mile 996TT WR Aug 2018, 9.5 @ 154 mph, 3.23 60-130 mph, 2.5 100-150 mph Manual Porsche World Record, 1400whp E85
997TT SlowBerry - 205.0 mph 1/2 Mile WR Nov 2018, 9.7 @ 170 mph 1/4 Mile , 3.2 60-130 mph , 2.4 100-150 mph , 1420whp E85
ESMOTOR | DO88 | TPC DSC | SYVECS | COBB | IPD | KLINE | XONA | AMS | ID | ERP | SACHS | TURBOSMART | CSF | DODSON |
#17
09-14-2017, 03:29 PM
you could also try switching out with another and seeing if the code follows the coil...but I wouldn't do anything until you actually read the Porsche codes (durametric, PIWIS or PST2)
#18
10-06-2017, 04:26 AM
Join Date: Apr 2010
Location: Short Hills NJ
Posts: 524
Rep Power: 40 
Update:
the plugs were fouled beyond anything i have ever seen.
New plugs & 997 coil packs were installed.
The shop also had a new Cobb tune file downloaded.
Seems to be fine now. Will keep logging the miles.
Thxs Rich
the plugs were fouled beyond anything i have ever seen.
New plugs & 997 coil packs were installed.
The shop also had a new Cobb tune file downloaded.
Seems to be fine now. Will keep logging the miles.
Thxs Rich
#20
10-08-2017, 10:21 PM
Ditto, glad to hear it's nothing serious.
my custom Cobb tune uncovered a bad coil (or plug) for cylinder 4, but it only missfired in 4th or 5th gear at higher RPM. Changed out the plugs and coils and haven't had a problem since...
my custom Cobb tune uncovered a bad coil (or plug) for cylinder 4, but it only missfired in 4th or 5th gear at higher RPM. Changed out the plugs and coils and haven't had a problem since...
#21
10-09-2017, 09:46 AM
Good to hear nothing major... Curious though, if the plugs were so fouled with only 5k miles,, didn't you notice any signs e.g. sluggish, misses, gas smell!, black soot on bumper/exhaust etc? Shouldn't the Cobb gauges or data logs capture something?