I have recently been given a 2.3 that i'm considering rebuilding for boost. I want to put it in my 96 vert. As far as swapping the engine and making it run N/A I am confident I can accomplish. What I am confused about is the appropriate fuel tuning for boost. I do have to pass emissions testing so a complete stand alone is out of the question. I had considered an fmu or piggyback of some sort. The problem is I have read and read and read and keep seeing different stories. Which piggy backs work with our cars? Any help will be appreciated because it seems in my searching i can only find what wont work. Thanks in advance.
well 96 means HPT is outta the question. I assume that since you say stand alone is out of the question for emissions reasons, I am assuming you are OBD II emissions.
Tuning that with an FMU and piggy backing is going to be hard not to set a check enigne light.
I would consider doing research on swapping in a 97 computer and harness, and tuning it with HPT.
I do not know the compatability of the 2 years, hence me telling you to research it.
That is a bastard child of a computer that you are trying to tune, which is going to make it more difficult.
I have a turbo 96, and it can be done on a FMU (not the best tune, but can be done). What I'm not sure about and someone else like Shifted might be able to tell us, is if you can put a 97 ECU/harness on a 2.3. If so that is what I recommend. Then you can use HPT to tune with.
FU Tuning
It can be done, but either you have to put a cam sensor on it or run it in batch fire mode all the time. HPT can tune out the codes. Honestly if it were me, and it had the 3 plug harness I'd put a 95 OBD-1 ECU on it and run a chip and tunercat.
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... not that that has ever been done...
swap to a 95. lots of tuning options.
Chris
'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08
yeah, but if he is OBD II emissions, it elimiates that as an option, and either the 97 re-wire, or an fmu and and MSD DIS 2 is what you are looking at.
I have a 95 sunfire and i was wondering where i could get a chip and tuner cat. Im getting ready to install a new camshaft and exhaust. so i was thinking of tuning it but i found it can't this is where the search brings me.
It takes 8,460 bolts to assemble an automobile, and one nut to scatter it all over the road
I guess no one helps anyone out. but dont worry i figured it out.
It takes 8,460 bolts to assemble an automobile, and one nut to scatter it all over the road
WOw it was only a day don't be freaking
brad armstrong wrote:I guess no one helps anyone out. but dont worry i figured it out.
seriously.....threadjack, then become impatient.....way to go.
But the OP, are you OBD II emissions, or tailpipe. If you are doing tailpipe, you can do the OBD I chip as shifted stated.
Sorry about that. Yeh i am OBD 1.
It takes 8,460 bolts to assemble an automobile, and one nut to scatter it all over the road
I am OBD II emissions. That is where my troubles lie. Seems like an FMU might be my best alternative. I had thought about the 97 swap but i thought that still didnt read boost. It could come in handy for adjusting the timing though. Thanks everyone.
