ECU Tuning Question
#1
Racer
Thread Starter
ECU Tuning Question
Hello all.. I want to install new fuel Injectors, but am being told that to install 42lb. injectors that I need to tune my ECU. Is this only something that can be done a t a dealer, or? What is required to make the adjustment, and is it even worth the trouble?
#2
Safety Car
what year car ?
I did find out by looking at your other posts, so I will assume you mean the 94. In that case
https://www.google.com/search?q=1994...hrome&ie=UTF-8
will show what you need, TunerCat is one, and there are other solutions. Why do you think you need that big of injectors ?
I did find out by looking at your other posts, so I will assume you mean the 94. In that case
https://www.google.com/search?q=1994...hrome&ie=UTF-8
will show what you need, TunerCat is one, and there are other solutions. Why do you think you need that big of injectors ?
Last edited by drcook; 09-03-2018 at 04:56 AM.
#3
Zen Vet Master Level VII
Yeah, I'd like to know too. I find that adding larger injectors to a basically stock engine does more harm than good. Increasing the fuel spray will not necessarily increase your engine power and will (more often than not) create a rich condition that will send your O2 sensor crazy.
I understand the tuning question so are you just adding larger injectors or are you heavily modding your engine?
I understand the tuning question so are you just adding larger injectors or are you heavily modding your engine?
Last edited by billschroeder5842; 09-03-2018 at 09:06 AM.
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#5
Racer
Thread Starter
Yeah, I'd like to know too. I find that adding larger injectors to a basically stock engine does more harm than good. Increasing the fuel spray will not necessarily increase your engine power and will (more often than not) create a rich condition that will send your O2 sensor crazy.
I understand the tuning question so are you just adding larger injectors or are you heavily modding your engine?
I understand the tuning question so are you just adding larger injectors or are you heavily modding your engine?
I have been going through the system trying to fine tune everything to get her running like new and am so close now. The reason I want new injectors is because after replacing the fuel pressure regulator, which made a huge improvement to the idle, on occasion and typically when hot I will get some stumbles at idle that shouldn’t be there. Also, on rare occasion and also with a hot motor and a fresh restart she will give me a really rough idle. When this happens just a few shots to the accelerator and it clears up. I put injector cleaner in the gas tank about 200 miles back, and things got better, but the situation is still there on occasion. I will be replacing the O2 sensors with Bosch and also a new AC Delco fuel pump, all factory spec, so other than plugs and plug wires, not much left to replace.
For the fuel injectors, Since I am ALL stock I do want to keep things factory, so from what I understand I need 24 lb injectors? All I want to do is install them myself at home, plug and play with no adjustments necessary. I am having a difficult time identifying the correct injector. Some have told me that modern inkectors attomize the fuel better and will be better than stock, which would be great as long as they plug in and profide factory performance. I don’t necessarily need a high performance injector and in fact don’t want to change anything, computer adjustments included, just an OEM replacement and if the design of the replacement injector is better, that’s just a bonus.
Which injectors should I get? I saw some AC Delco, but they were like $100 ea., so $800? Then I see entire sets for around $125, so I am really needing some good advice here for sure on what to get.
Thx.
#6
Safety Car
Look at your first post. It says ..... 42 lb .......... injectors, that is why folks are questioning why.
Last edited by drcook; 09-03-2018 at 10:59 AM.
#7
Melting Slicks
Get the FIC Bosch injectors they spec for your car...
https://fuelinjectorconnection.com/c...esign-iii-24lb
plug and play... no tuning.
Not sure why you say a 42lb injector in your original post, yet are talking about a completely stock motor.
https://fuelinjectorconnection.com/c...esign-iii-24lb
plug and play... no tuning.
Not sure why you say a 42lb injector in your original post, yet are talking about a completely stock motor.
#8
Racer
Thread Starter
Get the FIC Bosch injectors they spec for your car...
https://fuelinjectorconnection.com/c...esign-iii-24lb
plug and play... no tuning.
Not sure why you say a 42lb injector in your original post, yet are talking about a completely stock motor.
https://fuelinjectorconnection.com/c...esign-iii-24lb
plug and play... no tuning.
Not sure why you say a 42lb injector in your original post, yet are talking about a completely stock motor.
Thx...
#10
Racer
Thread Starter
Get the FIC Bosch injectors they spec for your car...
https://fuelinjectorconnection.com/c...esign-iii-24lb
plug and play... no tuning.
Not sure why you say a 42lb injector in your original post, yet are talking about a completely stock motor.
https://fuelinjectorconnection.com/c...esign-iii-24lb
plug and play... no tuning.
Not sure why you say a 42lb injector in your original post, yet are talking about a completely stock motor.