Aveo 2.0L Turbocharged

[petrified.rabbit]

They make kits for vw to eliminate the dbw. Just tossing that out there. But it could be done to our cars as well using an 04 throttle body cable and pedal. Provided the signal from the tps is the same as the signal to the computer. The only thing is programming, like always.

But I agree I would rather have a cable too.

[serega12]

I agree, dbw will never feel the same as having a cable... nemasys, a question for FAR down the road: how much would say someone would spend to build the same engine/tranny setup as you got right now (turbo included)?

[Nemasys]

Well that all depends my friend.

It all depends on what your going to pay for whatever you get. The price of the engine and transmission is pretty straightforward, your looking at roughly 2000 dollars more of less for the engine, all the components you will need to make it work and the transmission.

As far as the turbo kit, that all depends what you want to get. It's very hard to give an estimate since you might want to go with an ebay turbo setup or brand name parts. I got lucky with my AEM Wideband, HKS SSQV BoV and the OBX Wastegate, I got all 3 brand new for $250. The wideband alone is worth 300. I wouldnt go with a full ebay setup tho, alot of parts are cheap in those kits. My turbo, intercooler and piping is ebay quality (CX Racing). The rest of the parts, like i said, i got a killer deal on.

Then theres engine management and fuel to consider, the cost of tuning if you cant do it yourself, and any other labour for the job and engine installation.

I would presume an easy minimum of 4000 dollars is what your looking at to put the 2.0 in and turbocharge it (And thats with a cheap ebay turbo kit). And thats not counting any labour or other things you might have to pay. (Plugs, oil, gaskets, nuts and bolts, fittings, hoses, tools, etc etc..)

If your going for the "good" stuff then expect to pay well over 5000. It's quite an investement.

[Nemasys]

I finished wiring the megasquirt and everything checks out except the tach signal i need to trigger the unit so it can fire the injectors.

Im running the unit in fuel only mode, all the required sensors are connected and work properly but i cant get a tach signal to work. Normally you just use the ground from the ignition coil to get the signal, but unlike 95% of the cars on the road, these cars use a different ignition system. The ECU sends a positive 5 volt pulse to the coil to fire the ignition, the drivers are built into the coil assembly making it impossible to get a ground from them.

I emailed some ppl, see what comes up.. right now im dead in the water.

[Daox]

You should be able to get the 5V signal from the wire that goes to your tach. I found this pic in the service manual. You just have to figure out where pin 68 is on the ECU or pin 2 on the C204 connector.

I hope thats the right diagram. I used the online one and theres three different engines. This is the only one that showed a tach signal though... I suppose if its a white wire, you're in business.

[ontarian_frog]

The problem is all the wires going to the cluster on the 2004-2006 are white. And the speedometer and tachometer signals are both A/C.

[Daox]

Speedo and tach signals are pulsed DC signals. Its quite a bit different than AC.

He should still be able to find it by referencing the connector pins. But all white wires... wow that sucks.

[Nemasys]

Im not sure the unit will "understand" any type of 5v pulse.

In fuel only the trigger works by tapping into the ground of the distributor coil. In those cases the unit sees a 12v signal and it drops to 0v when the coil gets triggered (grounded). The unit will understand this signal.

Its totally different with these cars, i will need somekind of circuit that converts the 5v pulse from the ecu into a 12v - 0v pulse... I think lol

[Daox]

Well, it would be too hard to make a simple circuit that has a 5v signal trigger a mosfet that controls 12V. I find it odd that the megasquirt doesn't allow for this simple thing. This isn't the only car out there with a 5V ignition signal. This has to be at least a semi-common problem, however I'm really not familiar with the megasquirt.

[ontarian_frog]

Well, it would be too hard to make a simple circuit that has a 5v signal trigger a mosfet that controls 12V. I find it odd that the megasquirt doesn't allow for this simple thing. This isn't the only car out there with a 5V ignition signal. This has to be at least a semi-common problem, however I'm really not familiar with the megasquirt.

Wouldn't an injector have a 12v signal?