computer tune Q's 03 3400 in a 96 Gp

[Golgo13]

Well after having some of my questions unanswered in the engine swap forum I figured I'd try here.

I swapped a 03 3400 into my 96 Gp w/ the 3100. Ive had some drivibility issues since. I used the 3100 injectors FPR, etc. I had used the 3100 cam sensor which was giving me CEL, i spliced the 3400 sensor in and have had no codes since.

I then realized my fuel pressure from the 3100 system was too low for what the 3400 books list, so I replaced the 3100 FPR with the 3400 FPR and have had some improvement in idle quality but the motor still likes to lug and the exhaust pulsates like the motor is varying idle while I drive through town in normally.

Other than any tips on the mechanical side you gentlemen could give me, adjustable fpr or something else..... I'd like to have my computer re-done, I've searched a few topics on DHP and HP tuners and the such, But I'm lost. Can I send the computer off to be programmed? Are there programmers similar to hypertecs? or Am i stuck trying to do this all on a laptop, which I dont own or have access to?

The car is a daily driver, with exhaust and a K&N...of course Horsepower is something Id like to see but Im just looking to get what this motor came from factory, or just to get it to run correctly.

Thanks in advance.

[germ]

in your situation, you would need to buy a PCM from DHP or HPTuners.

you will need to tell them that you will need the fuel tables from an 03 grand am. since they have larger injectors than your stock application. then you would need to put the 3400 injectors onto your fuel rail with the 3400 fpr.

its not like a hypertech, its the actual engine computer that is sent to you.


you can also put the tuning software and do it yourself.

[Golgo13]

thank you for your reply

[Golgo13]

after all this time I finally recieved somefeed back from DHP, bascially they advised that I need to buy their tuner for 399 plus shipping and they accept paypal....

anyways since then Ive met a guy with a turbo cavi who would be able to tune it with his HPtuner software, he'd like to know if I can find a bin file for a factory 03 3400. If not I'll pay him for the credits and see If he can figure it out.

Any ideas?

and also, besides the size of the new injectors, are the impedance(SP?) different? He's mentioned something to me about it and taking a ohm reading on them, but i really am new to all of this.

Would I be able to help myself currently and swap them on the car now before the retune or would the motor even run with them? If not explain please.

I realize that these may be dumb questions to some of you, and I apologize now for that.

[sprucegagt]

after all this time I finally recieved somefeed back from DHP, bascially they advised that I need to buy their tuner for 399 plus shipping and they accept paypal....

anyways since then Ive met a guy with a turbo cavi who would be able to tune it with his HPtuner software, he'd like to know if I can find a bin file for a factory 03 3400. If not I'll pay him for the credits and see If he can figure it out.

Any ideas?

and also, besides the size of the new injectors, are the impedance(SP?) different? He's mentioned something to me about it and taking a ohm reading on them, but i really am new to all of this.

Would I be able to help myself currently and swap them on the car now before the retune or would the motor even run with them? If not explain please.

I realize that these may be dumb questions to some of you, and I apologize now for that.

If your going to go with the HP tuners route then I would not bother with an 03 bin file. Instead I would get the injectors and FPR from a 99 Grand am. These injectors should be a direct swap with your 3100 harness. Then retune the 96 GP bin file for the new injectors.

Now what I'm not sure about is the flow rating between your old 96 GP injectors and the 99 GA injectors. I'm sure some searching here will figure that out.

[IsaacHayes]

400 is not a bad price at all for a powertuner.

But if your friend has one and can edit your PCM, then go that route. If you find a bin file from a 03/etc 3400 motor, just tell him to look at the injector values/tables. Then edit your exsisting PCM with those numbers or tables. You don't need the whole code just the fueling stuff to work with the new injectors and for the better flowing 3400.

[Golgo13]

since i already have the injectors and such, Id prefer to go the route that Isaac has mentioned. My next question, I have no problem spliceing the injectors into my harness, but will the injectors themselves fit properly? I thought that I have read somewhere that they are longer.

ne idea where I might be able to find the bin file for a 03 3400? most of the links for downloads Ive seen while searching are dead.

[IsaacHayes]

They'll work. Youre using the intake manifold from the 3400 anyways, if there's an issue then get the fuel rail from the 3400 and it will all be like it should be. But I think they are the same any way as the 3100 rail.

Any bin file for a car/van/etc 3400 will work. As you're just looking at the fueling tables. You won't be using any other code. You just want to look at the fueling section, then edit your pcm accordingly.

[sprucegagt]

Well since you have no problem splicing in the 3400 injectors, I'll give you the last piece of info you need.

The IFR table for the 03 3400 is 371 ms/gram. This is for the entire table.

[Golgo13]

thanks everyone.

[zofo61]

I have a .bin for an 02 3400.............want it?

[sprucegagt]

I'll take a copy.

jblaker2001@yahoo.com

[zofo61]

I also have a 2001 GrandAm.bin but I am not sure its the 3400 or not...dont know what else they offered in 2001......

[Golgo13]

ill definately take it

[sprucegagt]

Think you could resend those files. One was accidentally lost.