Hello All,

One of our dealers in Canada has asked us whether or not our 2.2L Turbo kit will work on the cars with the 2.4L engine? He says the cylinder head is the same but he's unsure about the ECU. Anyone know if the 2.2L & 2.4L engines use the same ECU?

Dave

 

no they dont Hp tuners has broke into the 2.4 and the 2.0 but the 2.2 has a different ECU. So you could make the turbo for the 2.4 and be able to tune it with out piggybacks

 

different

 

We could still use our piggyback so people can tune themselves provided the Ignition sensors are the same. Anyone know if the crank sensor is the same? Also anyone have a ECU pinout?

 

the 2.4 ecu can be properly tuned, why would you want to use a piggyback?

 

x2 It would seem more reliable totell the computer what u want it do instead of trying to fool it to do what u want it to do.

 

That may not be possible.

 

Full tuning is available for the 2.4 no piggybacks are needed. it can be tuned with HP Tuners.

 

Not for 2 bar map.

 

If you can figure out 5 dimensions you can tune the 2.4 with no problems

 

ohhh

 

But is the HPTuner available publicly?

 

so wire in 2bar map sensor? no?

 

http://www.hptuners.com/

They are also a supporting vendor of this site.

 

Yes for purchase.

The problem with 2.4 boost tuning is the fact that the variable cam control is not yet accessible with the current version. HPT just stated it will be within the next two releases. Secondly, cam control and map fueling is currently calculated using a one bar map. If you had a way to plot and log a 5 dimensional VE table, you still couldn't change one without changing the other.

Best bet imo is to run either a piggyback to fool the stock ECM into seeing only one bar max and using the MAF to control fueling (limp mode possiblity tho) or, replacing the stock one bar with two bar, recalibrating it in HPT while staying with a one bar table and hope when the table goes out of range it just uses the last known good value and relies on the MAF, kinda what LSJs do after 210kpa, or using stock tune, run some sort of map clamp or a missing link type of device and again hope to not set a p0068 limp mode.

 

thats the main concern i have with moving forward and boosting my car...its not lookin too good because of all that. All of what you said is really expensive/time consuming to do and not guaranteed to work in the end...

ECM's in these cars suck

 

just make a 2.4 kit that you can buy without tuning or have hp tuners avaliable with the kit for an additional charge with a pretune. also check the difference between automatic and 5 speed as i think more autos will buy turbo kits from what ive seen so far me being one of them. the engines are suppossedly mounted in slightly different locations from auto-5 speed. same goes for the 2.2

 

any news on this?

 

There is LS2edit for the 2.4 as well.

http://carputing.tripod.com/LS2main.htm

 

How Much How Much How Much?!?!! When When When !!! I Want Now!!!!!

 

A guy by the name of boostedsol from solsticeforum.com used ls2 tuining and a gm 2.5 bar map to tune. Maybe he can help you guys out.

 

as far as i know, the heads of the two are in no way similar.