is there any differnces between the n326 and 327 ecus ??

 

I think the 326 was used with a Harness that had a resistor pack.
The 327 was a Straight harness with no pack..
both of them like to see HI impedanace injectors,so that is why the resistor pack on the N326.That car ran LO imp resistors.(about 3 ohms)
The 327 had HI impedance Injectors.(about 12 ohms).
By the way.nice Avatar..

 

Either will run a non turbo series four with no differences in the running. Got both and have run both in a 86 series four non turbo.

 

I thought all S4's ran low impedance injectors.

326 has external resistor pack and 327 has internal resistor pack?

326 used in 86 to 87.5 and 327 from 87.5 thru 88?

 

High resistance injectors have an internal coil resistance of something like 12-13 ohms.

Low resistance injectors have a internal coil resistance of something like 2-3 ohms.

The cars with low resistance injectors have the solenoid resistor package. The high resistance injector cars don't need this solenoic resistor package because...........they already have high resistance of 12-13ohms.

The cars built after the summer of 1987 have high impedence injectors. Earlier have lower impedence injectors. I posted on this site the chassis number they changed and if you can't find that, look in the series four parts fische that is free and online and you can find that chassis number on the page that shows the injectors.

https://www.rx7club.com/showthread.p...chassis+number

I've no argument with what MisterstyX69 posted above. Just tried to add more.