Amroth

Hey bros,

I have a Steve Wong chip for cars with cat bypass. Since then I have added a primary bypass to the mix. Is it a big enough change to warrant sending the chip back for one made for cat + cup bypass?

Amroth

Man I think I found the answer on the description for my current chip:

89-94 911 Carrera 2/4 w/premuffler or cat bypass
$375
Engines modified with a cat bypass/premuffler, with or without a primary or secondary muffler bypass. For manual or Tiptronic transmissions, with or without lightweight flywheel. Includes the LWF fix if one is installed.



Duuh, sorry for wasting the threadspace guys

993James993

How do you like your Steve Wong chip? Did you have the car before it had this chip? Would you recommend getting one?

I have a Steve Wong chip in my 993 that I purchased to correct a stalling issue. I really like how it changes the car. I've considered one for the 964.

Merle

I have a Steve Wong 91 octane, w/o cat and with secondary bypass. I could tell imediately after installing it that it improved my hunting idle as well as low rpm driveablity. The car feels like it pulls harder to redline than before. I can't really compare it to a stock chip because I bought the car with an Autothority chip already installed. I didn't know it was there until I pulled it to install the Steve Wong chip. The guy I bought the car from was an older gentleman that really didn't know much about the car other than it was a 1991 964 and that it was red.

Amroth

I would recommend one for sure, my 964 got livelier and it fixed the lightweight flywheel stalling issue (it wasn't bad but the chip erased it completely)

mike8

Good to know

chris951

I put a SW chip in my car and it made no difference. I did a scantool adaptation and it made a big difference all around.

993James993

What does the adaptation do? How do you do this with the scan tool? I recently purchased a scan tool and would like to know more about this.

Thanks!

chris951

Plug it in and find the adaptation icon

sml

makes the car idle correctly.

watch out for the myth about adaptation via a 'battery disconnect with a spirited drive'. waste of time. you must get a bosch hammer adaptation (or similar electronic tool - sounds like the scan tool thing works correctly).

Kaefer

What about "let the car idle for 5-10 minutes after a spirited drive at normal operating temps"? Is that an adaptation myth as well?

sml

are you serious?

no.

it is all a load of crap.

I spent 1 year trying all the myths ... time which I'll never get back ... finally i did a 5 minute bosch adaptation and the car was amazing at start & idle!

get the bosch hammer (or equivalent aftermarket tool).

993James993

So that's it? Just click the icon? Or do you need to drive the car immediately once you do so?

Thanks for your help with this!

Merle

Is there anyone near Tacoma that can do an adaptation for me? I have access to lots of different types of beer that I can offer in trade.

power_up

before adaptation, car is in working temperature. Then process adaptation in scantools software. It will prompt when done.