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General Tuning HELP!

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looch2487

Probationary Member
8
0
Apr 10, 2025
Pemberton Township, New Jersey
I have a 1996 Eagle Talon with a td05-20g
I’m wondering what I need to tune the car. I read threads about the 96 having EPROM. I’m just wondering if I need anything new or if I can just throw a computer on and tune?

All help is appreciated greatly.
 
More to it then that im afraid.. You might have a EPROM ECU. But first thing is to fill out your vehicle profile for the car in question. As for the EPROM, If your car is stock then you have to send the ECU to get socketed. So then it can be chipped and tuned.. There's a lot to it. But have to pull ECU witch is behind the kicker paneling beside the console on both sides and the ECU is behind the radio. Bolted down.
 
More to it then that im afraid.. You might have a EPROM ECU. But first thing is to fill out your vehicle profile for the car in question. As for the EPROM, If your car is stock then you have to send the ECU to get socketed. So then it can be chipped and tuned.. There's a lot to it. But have to pull ECU witch is behind the kicker paneling beside the console on both sides and the ECU is behind the radio. Bolted down.
If I had EPROM does it still need to be chipped? I’m new to tuning and VERY new to DSM
 
From what Ive known, 95's have EPROM. SOME '96s had EPROM but I think I read somewhere that it may have been the Eclipse Spyders, so youre gonna have to check, rather than assume.

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borrowed pics from this thread https://www.dsmtuners.com/threads/how-to-identify-an-eprom-ecu-merged-5-9.334945/

Also, please fiill out your vehicle profile with your list of parts. https://www.dsmtuners.com/dsm-profiles/add. Thats going to be important for people to know to help you. We need to know that you have the proper fuel components to support what youre after.

Make sure the general maintenance is done and the car is in good working order. Do a boost leak test prior to tuning because it will throw off the numbers if you have leaks.
 

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From what Ive known, 95's have EPROM. SOME '96s had EPROM but I think I read somewhere that it may have been the Eclipse Spyders, so youre gonna have to check, rather than assume.

You must be logged in to view this image or video.

You must be logged in to view this image or video.

borrowed pics from this thread https://www.dsmtuners.com/threads/how-to-identify-an-eprom-ecu-merged-5-9.334945/

Also, please fiill out your vehicle profile with your list of parts. https://www.dsmtuners.com/dsm-profiles/add. Thats going to be important for people to know to help you. We need to know that you have the proper fuel components to support what youre after.

Make sure the general maintenance is done and the car is in good working order. Do a boost leak test prior to tuning because it will throw off the numbers if you have leaks.
yea i filled it out as much as im aware of, its my dads old car. i dont think its stock injectors but he isnt sure. he pushed 22lbs so i imagine its got a little work done
 
Afraid so yes. If you have the eprom ecu it saves you money and time on looking for one. But you will have to send it off to ecm tuning and spend few hundred on having it converted. I have a 96 gst and it didnt have the eprom ecu. I waited till a used ecu popped up for sale on here and bought it for around 700 with speed density kit with it. Worked for me. I know thats alot of money. Took me awhile to save up and stuff but yeah had to do it.
 
Afraid so yes. If you have the eprom ecu it saves you money and time on looking for one. But you will have to send it off to ecm tuning and spend few hundred on having it converted. I have a 96 gst and it didnt have the eprom ecu. I waited till a used ecu popped up for sale on here and bought it for around 700 with speed density kit with it. Worked for me. I know thats alot of money. Took me awhile to save up and stuff but yeah had to do it.
yea i was looking at dsm link and speed density, but im not sure exactly what speed density does, i was wondering if there was another cheaper route to get her fine tuned. she runs a little wack but for the most part stays in the “stioch” part of the AFG. for the most part tho it jumps around from lean to rich

any specific tunes work best, like a downpipe or anything like that? i know some cars person best with certain mods and tunes
 
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yea i was looking at dsm link and speed density, but im not sure exactly what speed density does, i was wondering if there was another cheaper route to get her fine tuned. she runs a little wack but for the most part stays in the “stioch” part of the AFG. for the most part tho it jumps around from lean to rich
Limited to the mass air flow translator and the other kind of mass air flow computers that just trick the ecu. But they work. I used one b4 I got ecmlink.
 
any specific tunes work best, like a downpipe or anything like that? i know some cars person best with certain mods and tunes
I mean a big open down pipe always helps but tuning with or without shouldn't b big deal unless ur chasing big numbers. Or certain sound..
 
Limited to the mass air flow translator and the other kind of mass air flow computers that just trick the ecu. But they work. I used one b4 I got ecmlink.
thank you, just so i got it right, you cannot tune the stock ecu at all without the links or speed density?
 
thank you, just so i got it right, you cannot tune the stock ecu at all without the links or speed density?
Speed density isnt a hard requirement. You can tune with your standard Maf. Move to Speed Density in the future if you feel you need to.

yea i filled it out as much as im aware of, its my dads old car. i dont think its stock injectors but he isnt sure. he pushed 22lbs so i imagine its got a little work done

You have some groundwork to do tho before getting to tuning because tuning is precise and youre gonna need to know the fuel components that are on the car. If you dont know what injectors you have and cant get that information, youre gonna have to pull one to find out. Id even recommend that you have them cleaned and flow tested before tuning to make sure they are in good condition if youre not aware of the history. Post a pic and a close up of the numbers on the side or that are "etched" into it and maybe someone can identify it. Need to know what fuel pump you have too. Is the fuel pressure regulator on the drivers side of the fuel rail or is there an aftermarket one with a gauge sitting on the firewall and a line connected to the fuel rail?

There is something suspicious going on here because there really needs to have supporting fuel mods to turn up the boost to 22 psi like that and if the car has injectors, etc to support that, then how is the car restricting the amount of fuel, because that is essentially what youre doing for tuning is supplying/restricting enough fuel combined with the right amount of air, so im questioning how the car is doing that currently. I realize youre coming into this blind and without much knowledge about the car or its history, but these are the type of questions that you are gonna have to start finding answers to.
she runs a little wack but for the most part stays in the “stioch” part of the AFG. for the most part tho it jumps around from lean to rich
What kind of AFG are we talking? Is it a real wideband or is it an old blinky blinky Autometer air fuel gauge? Youre gonna need a wideband for tuning.
 
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Speed density isnt a hard requirement. You can tune with your standard Maf.

You have some groundwork to do tho before getting to tuning because tuning is precise and youre gonna need to know the fuel components that are on the car. If you dont know what injectors you have and cant get that information, youre gonna have to pull one to find out. Id even recommend that you have them cleaned and flow tested before tuning to make sure they are in good condition if youre not aware of the history. Post a pic and a close up of the numbers on the side or that are "etched" into it and maybe someone can identify it. Need to know what fuel pump you have too. Is the fuel pressure regulator on the drivers side of the fuel rail or is there an aftermarket one with a gauge sitting on the firewall and a line connected to the fuel rail? There is something suspicious going on here because there really needs to have supporting fuel mods to turn up the boost like like and if the car has injectors, etc to support that, then how is the car restricting the amount of fuel, because that is essentially what youre doing for tuning is supplying/restricting enough fuel combined with the right amount of air, so im questioning how the car is doing that currently.

What kind of AFG are we talking? Is it a real wideband or is it an old blinky blinky Autometer air fuel gauge? Youre gonna need a wideband for tuning.
yea its a auto meter, the car runs pretty decent but i think it can run better which is why im looking how to tune, im pretty positive im on the oem fuel rail. theres no gauge on it. and fuel pump could’ve been touched im not sure

what do you think some good mods would be as of now?
 
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yea its a auto meter, the car runs pretty decent but i think it can run better which is why im looking how to tune, im pretty positive im on the oem fuel rail. theres no gauge on it. and fuel pump could’ve been touched im not sure
what do you think some good mods would be as of now?


If I were in your position, I wouldnt mod this car at all until I understand exactly what I already have. You cant do anything useful without that information and the info that youve given is very vague. Youre gonna need to know the injector size to set a base for your global fuel. YOu need to know that you have adequate fuel delivery and youre not going to lean it out. You may already have the proper mods, but there is no way for us to know if you dont know, so the only way for us to know is for you to find out. Its already been described above what should be done at this point.

1. Pull the ECU and check if its EPROM.
2. Pull an injector and post a pic.
3. Try to identify what fuel pump i have.

For all you know, you might already have DSMlink and not even know it. If your dad was running 22 psi, then he wouldve had to have had a way to control the fuel.. If you say the car runs decently well and that you just want it to run better, then the car might have already been tuned at some point in the past or for all we know, it might not run as well as it could because you simply have a boost leak.

At this point, reading up on the necessary fuel components is gonna be your best bet. That way you can understand why these things are necessary and then it will be easier for you to understand what you currently do and dont have.
 
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If I were in your position, I wouldnt mod this car at all until I understand exactly what I already have. You cant do anything useful without that information and the info that youve given is very vague. Youre gonna need to know the injector size to set a base for your global fuel. YOu need to know that you have adequate fuel delivery and youre not going to lean it out. You may already have the proper mods, but there is no way for us to know if you dont know, so the only way for us to know is for you to find out. Its already been described above what should be done at this point.

1. Pull the ECU and check if its EPROM.
2. Pull an injector and post a pic.
3. Try to identify what fuel pump i have.

For all you know, you might already have DSMlink and not even know it. If your dad was running 22 psi, then he wouldve had to have had a way to control the fuel.. If you say the car runs decently well and that you just want it to run better, then the car might have already been tuned at some point in the past or for all we know, it might not run as well as it could because you simply have a boost leak.

At this point, reading up on the necessary fuel components is gonna be your best bet. That way you can understand why these things are necessary and then it will be easier for you to understand what you currently do and dont have.
well not quite mods but aftermarket’s since i’m not sure what it is. i know its been in there a while. i’d rather upgrade it than do the work twice. stock injectors are 450s right? i know it’s not a boost leak i replaced the turbo along with vac lines. i blew a hole in the turbo. i’m sure it’s due to it being a lower quality turbo and being old. it was a td05-20g so i put a new one on. it’s still internally gated
 
well not quite mods but aftermarket’s since i’m not sure what it is. i know its been in there a while. i’d rather upgrade it than do the work twice. stock injectors are 450s right? i know it’s not a boost leak i replaced the turbo along with vac lines. i blew a hole in the turbo. i’m sure it’s due to it being a lower quality turbo and being old. it was a td05-20g so i put a new one on. it’s still internally gated

Stock injector size is 450cc.
If you want to get different injectors so that you are sure of what they are, then you need to have a clear understanding of what your goals are for the car because different goals require different setups. Also decide if you want to stick with pump gas or go e85. If you decide on e85 be sure that you have enough access to it in your area. e85 will require bigger injectors than what youd use for pump gas and a much larger fuel pump. Also be aware of the pros and cons of both types of gas.

If you dont have an aftermarket fuel pressure regulator, then you will need one of those as well because the bigger fuel pump will overrun the stock regulator. Even if you replace all of those components with new, I would still encourage you to understand what you already have first and understand exactly how it is running the way that it is currently set up. There is nothing more frustrating then slapping on a bunch of parts and not understanding what went wrong when it doesnt start or it idles funny. Too many things to track down.
 
well not quite mods but aftermarket’s since i’m not sure what it is. i know its been in there a while. i’d rather upgrade it than do the work twice. stock injectors are 450s right? i know it’s not a boost leak i replaced the turbo along with vac lines. i blew a hole in the turbo. i’m sure it’s due to it being a lower quality turbo and being old. it was a td05-20g so i put a new one on. it’s still internally gated
Replacing the turbo and vac lines does not mean you dont have a leak.
 
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