Early 89 harness in a 86.5..................

[DRIFTER WANNABE]

I have searched and searched but didnt find my exact swap info..............

I recently picked up a 86.5 NA hardtop and am swapping in my 7mgte from my 89 targa turbo............\\

Will it all go together with a little effort or would it be wiser to pick up A pre 89 7mgte harness and ecu.....

I have heard there are benifits to the 89 ecu

Thanks for the input by the way i not keeping the abs not that it makes a difference

 

[DRIFTER WANNABE]

2moro im gonna take my 89 harness and try to hook it up to my dash plugs in my 86.5 hopefully its gonna work

 

[IwantMKIII]

depends when the 89 was made. If its early it should be interchangeable. look at the plug color. If they are the same you're good.

 

[Jeff Lange]

I'm going to say no.

Everything I've ever seen or shown me (including information from Toyota) shows all 89 harnesses were the same, there was never a change made part way through the year. I'm sick of hearing that.

Jeff

 

[gtsfirefighter]

You could always pull the dash and swap the body harness from your 89 to you 86.5. It's a time consuming pain in the ass though....I've done it.

 

[DRIFTER WANNABE]

Yeah its a grey plug harness so its not interchangeble with my 86 yellow plug

Im probably gonna swap the dash and body harness because the 86's wiring is looking a little on the corroded side............\\

Does this include wiring to the tails as well?

Are there any benefits to running a 89+ ecu or are they the same???????
thats gonna be the deal breaker.....

 

[gtsfirefighter]

Yeah its a grey plug harness so its not interchangeble with my 86 yellow plug

Im probably gonna swap the dash and body harness because the 86's wiring is looking a little on the corroded side............\\

Does this include wiring to the tails as well?

Are there any benefits to running a 89+ ecu or are they the same???????
thats gonna be the deal breaker.....

The one thing I know of is the HAC is integrated into the ECU.

FYI, when you pull the body harness you might have to pull the blower motor housing.

 

[DRIFTER WANNABE]

Thanks for the responses i have decided not to pull the body harness

IM SELLIN MY 89 harness and ecu and gettn ones from a 88 or 87 is there abything i will have to interchange

Things that come to mind are
afm
Cps
coil packs etc.. Thanks DW

 

[hvyman]

the 89 ecu has more hp and torque than pres's plus it ahs a stock redline of 6500rpm versus 90+ which is 6250.

all afm, coils, cps are interchangeable.

all 86.5's were non turbos so you need all the appropriate sensors for the gte.

 

[DRIFTER WANNABE]

I still have the 89 my turbo came out of so i got all the electronics i need

You say the 89 ecu has more hp n tq ?

I thought that 89 ons had +2 hp because a revised wastegate how does that ecu make more power??????????????????????

 

[hvyman]

yes it has 2 more hp and like 10 more torque. its all in the tune.