1G Engine harness help

[DSM_Thorpe]

I am still in search of a N/A engine harness for my 1993 Eagle Talon but I was able to find a turbo harness. What all would I need to do to be able to run a turbo engine harness on a N/A engine and ecu? I’ve read just an injector resistor pack and N/A fuel pressure regulator would need to be added to the turbo harness. Is there anything else I’m missing? Any feedback would greatly be appreciated.

(The motor is a 6bolt, I don’t think that will make much of a difference but figured that might be important to mention)

- James

 

[steve]

Assuming we are talking about a 2.0L N/T 4G63 and not the 1.8L N/T 4G37.

I can't speak to all the connector differences but the turbo harness is going to have extra wires to support the turbo car features and none of them should cause a problem other than needing a shorting plug (same one that is used on turbo cars running high impedance injectors) for the injector resistor pack and I think the N/T MAF has a smaller connector that doesn't have the MAF reset wire.

The N/T fuel pressure regulator isn't connected to the harness so that shouldn't be an issue unless you were doing a turbo swap.

Maybe I'll think of some more when I wake up and get a few cups of coffee going.

 

[19Eclipse90]

Assuming the turbo harness is not from a 1990 model and speaking strictly manual transmissions, the injector resistor pack and MAF are the only things that come to mind.

The knock sensor, boost control solenoid, and solenoid pack connectors will not be connected to anything.

If your car is an automatic and the turbo harness is from a manual, or vice versa, there may be other things you need to look at.

 

[DSM_Thorpe]

The motor in my car is a N/A 4G63 6bolt, sorry for not clarifying. The turbo engine harness I found is from a 1992 manual Eagle Talon TSI. The turbo harness is also set up for a 2G TPS, would that affect anything? Also, what would be the best way to get around the MAF issue? And just to clarify on the shorting plug, that isn’t the same thing as the injector resistor pack correct? I’m still fairly new to this so apologies for the noob questions.

 

[steve]

The injector resistor pack puts a resistor in series with each of the injectors because the turbo cars use low impedance injectors and the resistor then limits the current to avoid burning them out. N/A cars injector power feeds do not and are direct to the high impedance injectors since the injector coil does the same thing.

There is a shorting plug that replaces the injector resistor pack for using high impedance injector on a turbo car that them avoids you cutting up the harness to bypass the resistors and feed the injector directly.

Like these.

FIC Resistor Pack Delete Plug for Evo DSM (PLRESBOX)

To avoid cutting and splicing your resistor box harness, simply remove the resistor box and plug in the FIC Resistor Box Delete Plug. Easy! This plug will work with DSM and Evo 1-9 models. For use when replacing OEM or aftermarket low impedance injectors with high impedance injectors.

stmtuned.com

BYPASS-Injector Resistor Bypass

www.spoolinup.com

 

[19Eclipse90]

So, a 1992 manual, turbo harness into your 1993 manual, non-turbo car? Should be straightforward, then.

The 2G TPS shouldn’t pose any issues. I don’t know what is the better suggestion or if it even matters, using the integrated idle position switch of the 2G throttle position sensor or retaining the use of the 1G idle position switch. If it were me, I’d use the 2G integrated idle switch.

The lowest cost way of addressing the MAF situation is to chop the pigtail off the N/T harness and transplant it onto the turbo harness by matching up the wire colors. Tape up the extra wire out of the way.

 

[DSM_Thorpe]

Yes that is correct, it’s a 1992 manual, turbo harness going into my 1993 manual N/T Talon.

Sounds good for the TPS, I’ll most likely stick with the 2G one.

When I get around to swapping the harness in I’ll update on how it goes especially with swapping the N/T pigtail over to the turbo harness.

Thank you all for your input! This helped me out significantly!!