3.4l Ecu

[Blackhawke]

Alright, big question... I'm farely new to programming, to prom e-prom, flashing and stuff. I want to know the main difference between the 3.4 and 3.8 ECU's. I know you can change a chip inside the 3.8L which makes it easier to reprogram right? But what exactly prevent us from flashing a 3.4? There MUST be a way to do it, since third parties do it for a fee. I really don't feel like hooking a new computer on the Firebird to run megasquirt, I find it too time and money consuming compared to a flashing software... so let's start with those questions and move on as we go...

[97rs4life]

Re: 3.4l Ecu

you don't put chips into the 3.8l, we can use hptuners which attaches to the OBDII port and just flash the stock PCM with a new tune.

3.4 PCMs there are currently nothing you can do for tuning other than megasquirt or a stand alone system like F.A.S.T.

There are no chips for the 3.4 to burn and no 3rd parties that can do a full tune other than things like gears and fans.

Search a bit more on this site and you will be able to read up on the 3.4

[Blackhawke]

Re: 3.4l Ecu

ok, no chp to burn but what exaclty prevent us from reprogramming the PCM? because it's a read only memory? what about Tuner Pro, on their site it says it's good for any OBDI -96 GM I'm just trying to figure out what's the difference between a 3.4L PCM and say a L98 or even LT1 OBDI PCM

[FunkZ]

Re: 3.4l Ecu

The 3.4 PCM can be flashed. The problem is nobody wants to develop anything new for a nearly 15 year old car that isn't a popular choice for performance modding anyway. Tuner Pro won't work. Nobody makes software that will work.

Send your PCM to Fastchip.com for a basic performance tune
Try to find a used Hypertech Power Programmer
Use a Jet or Venom module

Other than that like 97rs said you're looking at a Megasquirt piggyback controller or other stand alone system.