95 C4 993

Ok, Im tired of battling the immoblizer from time to time.

My alarm went ape crap last night (no particular reason) and I was in no mood or had the patience at 10pm last night to deal with it, in respect to my neighbors on top of it.

Whats the easiest and simplist way to get rid of it? A place that specializes in car alarms?

IMMOBLIZER NEEDS TO GO!!

TMc993

When you determine a 100% reliable way to eliminate the immobilizer without affecting any other aspect of the operation of the car, patent the process, then sell it to all of the other frustrated 993 owners. You will be able to retire on the proceeds of the sale.

larpy

+1 Nobody has figured this out yet

Evan Fullerton

GIAC (others may be able to do it but mine was done by them) can delete the immobilizer's function out of the ecu. I do not know if this affects the door locks and such as I don't have door locks at all in my race car but that is something they should be able tell you.

edit- you have a 95 so it should be much easier, you could probably just get the ECU and possibly the alarm out of an non immobilizer 993. It is possible but you will have to do a bit of your own research. All I can tell you is it can be done.

Bill Verburg

1) you need a non immobilizer chip
2) there is a relay to the starter and perhaps the fuel pump that needs to be jumped,

I did a temp on my car a few years ago and from memory that's all. look at the wiring diagrams for the details.

ZombiePorsche44

You said your immobilizer went "Ape Crap" but didn't mention how you got it under control.

Did you just shut it off with the remote? or did you have to disconnect the battery to get it under control?
ZP44

2Many Cars

Funny but immobilizer "random events" must happen with some frequency. I brought my Targa in for service at a very well regarded Porsche specialist and the first thing he did when he got in the car was roll down the window. He commented that he'd had a few lock themselves with the keys in them so now he always puts the window down if the keys are in the car. I think I'll be doing the same.

993/907

I had the same question about disableing the thing several months ago. I received and answer from Steve at (help me here....something like Rennsport?) I believe in Oregon. He said his shop could "flash" the ECU to eliminate the function of the immobilizer.

I did a thread search and could not find the note from Steve...(I know, should have written it down where I could find it....).......maybe somebody on this thread can dig it out, about two months ago I think.....

993/907

My brain finally fired a synapse.....Rennsport it is, in Portland. Google their site then email your question to Steve. Let us know what you find out......

sonny1

Call Todd Knighton at Protomotive, he will recode your DME to get rid of the inmobilizer.

tctung

My 993 is of Euro spec but this part might be the same. I had the shop install an OMP battery kill switch. (In Taiwan, parts and labor cost about US$100.) Every time I am done parking, I switch off the battery completely. When I need to use the car, I switch it back on. Although the immobilizer starts functioning right away, I can easily disable it by locking then unlocking the door with the car key.

Merits of doing the above are:

*You can park the car for 6 to 8 weeks and the battery will be still juicy.
*Except yourself with the key, nobody else can start the car because once the battery is switched back on the immobilizer will start functioning. (Thief would need a tow truck to steal your car.)

Andre'

I've never had any issues with immobilizer since I purchased my 993 in 2004 - what are the problems? Maybe I'm just a lucky guy but I'd like to understand...

Regards, Andre'

mbackhand

Mine was the devil..glad my 964 does not have one

bart1

Mine has acted up a couple of times. Remote would not unlock, had to manually unlock (and my lock seems a bit finicky), and then it got angry. Happened twice and it just started working again both times. I am pretty paranoid about it.

993/907

Andre, just to name a few of the problems:

If the little battery dies in your remote, you are locked out of the car. Use the key to open the door....scramble to find the 4 number code then turn the ignition switch off and on in the prescribed sequence. I think you have 90 seconds to do this.....otherwise the horn honks, the lights flash and the car will not start. (Had this happen to me at a remote airport....about 8F below zero, no cell phone, couldn't figure out the code. Finally unhooked the battery to stop the ruckus and gather what was left of my wits. I think the remote battery failed because I had it in my coat pocket, battery got cold, lesson learned).

My car currently likes to fool with my head.....stop, get out, close the door, hit the little button. Nothing. Key back in, turn it on, hold the button. Nothing. Do it again, bingo. Sometimes I have to do all that plus turn on the headlights.

Lately it has developed a cute little whine. After removing the key, the little sound dinger that tells you the key is still in the ignition will kind of "cry" for awhile....finally it stops crying and I can lock the doors......

Otherwise, a wonderful thing.