garychios

I want to remove the immobilier from the car, are there any side affects?

Monique

I cannot answer your question.

But why would you want to disable a fine theft deterrent?

Lorenfb

You can remove the immobilizer on a temporary basis, e.g. remove and replace
things under the seats, but the immobilizer MUST be installed for the engine to
start.

garychios

So if the immobilizer goes bad, I need to replace it with another one? Is t here a way to rig it so i dont need the immobilizer at all?

Dbltime

My immobilizer drove me crazy two years ago. I spent about $1,500. at two shops trying to bypass or disarm it. (Car would not start) No way. You need the special code to reprogram it and make sure you carry a spare battery for the key. You are stuck with that irritating system.

garychios

Or run a haltech fuel only computer for waay less

914und993

I believe you can get a DME reprogram that ignores the immobilizer, but I don't have personal experience with this.

Chip

harryb

For what it's worth, I had my DME reprogramed to no longer require a pulse from the immobilizer circuit for the car to start. My understanding is that this is a required first step. Now, I need to figure out which elements from the alarm module need to be jumped or disabled.

Harry

GratefulJED

Talk to Steve Weiner about it.

mike cap

Gary,

As John mentioned, Steve Weiner can disable the Immobilizer system. I discussed this with him a while back when we spoke about sending my ECU for "re-chip".

Jean-Pierre is correct though, this sytem is thought to provide be excellent theft-prevention. I would think twice about disabling it.

Lorenfb

"For what it's worth, I had my DME reprogramed to no longer require a pulse from the immobilizer circuit for the car to start."

The 993 immobilizer sends more than just a pulse to the DME. It sends a start O.K.
"word" to the DME which is common to ALL 993s. As a result, this approach is not
a true immobilizer as is the 996 immobilizer which has a unique 10 digit code for
each car VIN.

The 993 DME unit also controls the; fuel pump relay & starter solenoid. As posted,
the 993 DME can be modified to not require the immobilizer command. The immobilizer
system should not be removed unless the car is converted to a "track-only" car.

Greg H.

I have a related question: If you change stock ECU's, will the car start? If not, how do you change them - at a dealership?

Greg H.

Steve Weiner-Rennsport Systems

Hi Greg:

Perhaps I can answer your question,..........

If you replace the original ECU with a new or used one, your unique immobilizer code must be programmed into the replacement ECU with the PST-2 so that the car will start.

The only exception would be if the replacement ECU's EPROM immobilizer function was disabled or that your replacement ECU did not have the immobilizer (drive-block) function.

Once can buy an ECU both with, and without that feature.

Lorenfb

"If you replace the original ECU with a new or used one, your unique immobilizer code must be programmed into the replacement ECU with the PST-2 so that the car will start."

Not True!

1st - Definitions

ECU means - electronic control unit, which can refer to any electronic module
in the 993 including the immobilizer.

ECM means - engine control module, the DME unit in the 993

2nd

Any 993 DME unit will function with any immobilizer. They are NOT "matched"
as with the 996 units. Obviously, this refers to 88 pin DMEs in the '96-'98 993s.
Re-read my original post above.

Novice

I bought Princeton's (poorb0yw) immoblizer (with the 4 digit code), but have fixed the problem without it (search my posts on my immoblizer problem and solution).

I live only 40 minutes away from NYC. Let me know if you want to take it from me. I will sell you at the same price that I paid.