Cascading fault codes
Thread Starter
Rennlist Member
Joined: Mar 2002
Posts: 642
Likes: 14
From: TX
Cascading fault codes
Wow! That is a lot of fault codes. My fav? Saying the heated steering wheel is not working. Funny thing - I do not have a heated steering wheel?
Any thoughts about what it could be? I am thinking probably causes: battery, need new coil packs / spark plugs. Any other ideas before I take it to the dealership and they tell me to bend over?
Any thoughts about what it could be? I am thinking probably causes: battery, need new coil packs / spark plugs. Any other ideas before I take it to the dealership and they tell me to bend over?
Drifting
Joined: Apr 2018
Posts: 2,026
Likes: 649
From: Mechanicsburg pa
Crazy codes when the battery voltage drops. If it starts drive for 20 minutes might be a temporary solution. If you have a maintainer charge over night. COSTCO is a good source for Interstate but they don't install. Not too difficult DIY, stand in the frunk to lift the battery in and out.
Pro
Joined: Dec 2018
Posts: 742
Likes: 459
From: Smyrna GA
And if that doesnt clear it, then its likely one of the coil packs. Coil pack failures will throw every light and warning the cars has available, 99.9% of which has nothing at all to do with the actual problem. In my case it also dropped the PDK into 2nd gear on the highway and wouldn't shift up (limp mode)
Last edited by ICNU; May 2, 2022 at 08:32 AM.
Burning Brakes
Joined: Feb 2018
Posts: 929
Likes: 385
From: Texas
If original battery, swap with this one.
https://www.batteriesplus.com/produc...40cca/sli49agm
$229.99 - 10% off
https://www.batteriesplus.com/produc...40cca/sli49agm
$229.99 - 10% off
Trending Topics
Pro
Joined: Dec 2018
Posts: 742
Likes: 459
From: Smyrna GA
+1 on the low cost Batteries + options. I have the same Batteries + battery referenced above, however mine is the smaller 750CCA H6, group 48 version which was the exact specs as the factory original it replaced. It was an exact drop in fit.
It's about to hit its 4 year warranty mark now, and is still going strong. I never coded it when I swapped it out, and have never coded any of my previous multiple P cars with battery changes over the years, or any of my other makes of cars as far as that goes. Never a single issue with longevity with any of them
It's about to hit its 4 year warranty mark now, and is still going strong. I never coded it when I swapped it out, and have never coded any of my previous multiple P cars with battery changes over the years, or any of my other makes of cars as far as that goes. Never a single issue with longevity with any of them
Last edited by ICNU; May 2, 2022 at 05:22 PM.
Rennlist Stories
The Best Porsche Posts for Porsche Enthusiasts
Talos Takes Your 991 Porsche 911 GT3 to the Next Level for a Cool $1.13 Million
Verdad Gallardo
9 Vehicles Porsche Helped Engineer that Aren't Porsches
Verdad Gallardo
9 Features and Characteristics That Only Porsche People Understand
Verdad Gallardo
I've Written 500 Rennlist Articles: Here's How Porsche Has Changed Along the Way
Joe Kucinski
10 Most Unnecessary Porsches Ever Built (And Why We Love Them)
Verdad Gallardo
Porsche 911 GT3 S/C vs 718 Spyder RS: 10 Categories, One Winner
Joe Kucinski
This Builder Is Turning Heads With Its Slantnose 911 Creation
Verdad Gallardo
Porsche 911 GT3 Artisan Edition Pays Homage to Japanese Culture
Verdad Gallardo
Porsche Reveals Coupe Variant of the Electric Cayenne With a Fresh Look
Verdad Gallardo
Burning Brakes
Joined: Feb 2018
Posts: 929
Likes: 385
From: Texas
+1 on the low cost Batteries + options. I have the same Batteries + battery referenced above, however mine is the smaller 750CCA H6, group 48 version which was the exact specs as the factory original it replaced. It was an exact drop in fit.
It's about to hit its 4 year warranty mark now, and is still going strong. I never coded it when I swapped it out, and have never coded any of my previous multiple P cars with battery changes over the years, or any of my other makes of cars as far as that goes. Never a single issue with longevity with any of them
It's about to hit its 4 year warranty mark now, and is still going strong. I never coded it when I swapped it out, and have never coded any of my previous multiple P cars with battery changes over the years, or any of my other makes of cars as far as that goes. Never a single issue with longevity with any of them
- Porsche designed the 981/991 cars to handle either an H6, H7 or H8 Battery Size.
- The Battery Tray is made to accommodate any of these 3 size batteries.
- Many of the 991.1 & 991.2 Cars come with the H6 Battery Size from the factory.
- If you change the Battery Size from your original, you should have the Cars Charging System Software updated so its knows the correct size battery and can charge the new, different size battery appropriately. Not doing this may shorten the new battery life.
https://www.batteriesplus.com/productdetails/sli48agm
When I got the car a few months ago, the PO had just replaced the battery. I noticed the voltage was over 15v and I didn't like it. Turns out he replaced it with a flooded duralast battery (not agm) and also didn't code..I put H8 AGM and recoded.
Last edited by Sajan; May 2, 2022 at 06:22 PM.