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I have straight pipes-valved side deletes and center delete (but with original cats)
I do cold starts with garage door closed until the air pump kicks in and quiets it down a bit, takes less than 2-3 minutes at most. Vales closed on the side deletes does quiet things a bit-
I doubt there's a way to disable the cold start system, and basically the car would probably have a hard time starting, run lean and all sorts of headaches. Doesn't get much louder than a NA engine with straight pipes unless on top of it you take out the cats
You can disable by coding the ECU directly, it's been done and quite common with beemers. Of course that's not as simple as plugging the PIWIS III and making the entry I showed on the post above active.
So, anyone doing coding has seen this situation where one code line always comes with another? Anything you just could not write to the memory? I even tried with the engine running. I know my car is DME is OBD unlocked, but I'm not sure it matters for PIWIS. Theoretically, the dealer techs should be able to fine tune the car using PIWIS, perhaps the coding needs to be there?
Last edited by John Mclane; 07-21-2021 at 05:47 PM.
I don't know about the 992 but most 911s have a PSE exhaust where the valves on exhaust mufflers open and close when you press the "Sport" mode, whether its a cold start or not-perhaps you're speaking of something else-
Every engine needs either a choke if you have carbs or a cold start setting of richer mixture etc, otherwise the engine won't start in cold conditions-that obviously can't be disabled.
On the 997 engines during a cold start, there is an air pump to ensure a clean mixture during the warm up phase. On subsequent cars it might be different, I only have the 997 service manual, so 991 and 992 cars might have something completely different.
the ability to encode 992 often depends on the piwis version. There are no encodings for 2019-2021 cars in 38.2. For these cars, it is better to encode the blocks via version 40
the same is required if you want to change the configuration and encode of the Taycan or Cayenne Coupe
Last edited by FerdinandAG; 07-22-2021 at 02:47 AM.
Fuel injectors are electromechanical valves-and catalytic converters are pretty amazing too-I'll include some screen shots or maybe just upload the After Sales Training manuals on Engine Management Systems. It's truly amazing and quite complex-but there are also some basics in the manual:
anyone able to code the 991.2 LED headlights to the more powerful euro type LEDs?
I see in "front end electronics" the following options. Just don't know what is what.
Front direction indicator outer lighting, 48 W version No
Exterior lighting: side marker lights installed yes
Exterior lighting: SML function at fog light output No
Exterior lighting: SML in LED yes
Exterior lighting: direction indicator at side direction indicator output No
Exterior lighting: SML flashes in sync. yes
Exterior lighting: front marker light in LED yes
Exterior lighting: marker light off in DDL mode with term. 15 off No
Exterior lighting: warning flashing for emergency brake display No
Exterior lighting: front direction indicators in LED yes
Exterior lighting: side direction indicators in LED yes
Exterior lighting: rear direction indicators in LED yes
Exterior lighting: flashing function deact. on partial fail. No
Exterior lighting: fog light installed No
Exterior lighting: fog light in LED No
Exterior lighting: fog lights off when high beam/headlight flasher on yes
Exterior lighting: fog light voltage adaptation (temp., speed) No
Exterior lighting: high beam installed yes
External lights diagnosis of tail lights using BCM yes
Exterior lighting: switchover shutter installed No
Exterior lighting: high beam voltage adaptation (temp., speed) No
Exterior lighting: high beam function via high beam and shutter for dipped beam yes
Exterior lighting: temp.-dependent switch-off of high beam and aux. high beam No
Exterior lighting: daytime driving light installed yes
Exterior lighting: dipped beam on upon engine start yes
Exterior lighting: DDL active when term. 15 on yes
Exterior lighting: DDL specification yes
Exterior lighting: DDL dimming (with halogen) yes
Exterior lighting: DDL with position and tail light No
Exterior lighting: DDL as marker light No
Exterior lighting: DDL with marker light No
Exterior lighting: DDL off when marker light on yes
Exterior lighting: DDL off when fog light on yes
Exterior lighting: DDL can be activated via instrument cluster PCM No
Exterior lighting: dipped beam switchover to DDL No
Exterior lighting: coming/leaving home function available yes
Exterior lighting: coming/leaving home function with dipped beam No
Exterior lighting: Coming/Leaving Home with daytime driving light yes
Exterior lighting: Coming/Leaving Home with fog light No
Exterior lighting: headlight washer installed yes
Exterior lighting: headlight washer activation via button yes
Exterior lighting: dipped beam voltage adaptation No
Exterior lighting: headlight theft monitoring yes
Exterior lighting: static cornering light function present No
Exterior lighting: cornering light function present No
Exterior lighting: cornering light via cornering lights No
I received my clone PIWIS 3 in and have started coding but I cant for the life of me commission (teach) the immobilizer in either version. I have a PPN Login and have downloaded the certificate but it fails as soon as the PIWIS agedly tries to ping the PPN. Ideas?
I received my clone PIWIS 3 in and have started coding but I cant for the life of me commission (teach) the immobilizer in either version. I have a PPN Login and have downloaded the certificate but it fails as soon as the PIWIS agedly tries to ping the PPN. Ideas?
many of the cloned software has the connection to PPN disabled. Are you using software provided by Porsche directly since you have a ppn login?
many of the cloned software has the connection to PPN disabled. Are you using software provided by Porsche directly since you have a ppn login?
I'm using the software that came with the clone. 38.40 is definitely offline but 40.0 lets me use the browser and login into PPN for the certificate download. The PPN background connection has an X.
I was able to register for a PPN account with little to no hassle.
07-21-2021 | 04:08 PM
