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I can't remember off the top of my head- can I use a 94 NA dash harness in my 94 VR4? I'm restoring and painting a new dash to put in my car, but I can't remember if there are any differences between the harnesses, and if it's safe to use the NA one or if I HAVE to use a TT one. Thanks!
One difference I can think of is NA has a volt gauge where TT has a boost gauge.
I'm going to replace the gauges with Defi instruments. Thanks Brian! Maybe it's just best to swap over the harnesses?
Does that harness control the stuff in the console? That stuff would be different than the base harness, also I think there is some buttons around the main cluster bezel that are different.
If you have the harness I'd probably just swap it out.
If you're going to aftermarket gauges, it doesn't matter. Only wires you may be tapping off of for the gauges would be power and ground, you'd run new wires for the senders.Quote:
Originally Posted by GRSHOPR
So long as your TT and NA dashes have the same options, shouldn't matter. Otherwise if you have to wire in like a digital CC or similar, that'd be about the only differences that I'm aware of.
How about ECS (if not on the NA dash already) and active exhaust?
One of the differences I was talking about on the base bezel. The SL harness would be closer to the TT harness than the base model.Quote:
Originally Posted by stealthee
Thinking about it, I wouldn't be shocked if NA's without ECS still have the harness for it in the dash. I haven't really researched that though since I don't care about ECS.
I know the cars that came sans fog light have the harness already there. All I did was buy a set of fogs and take the dummy switch out and installed a factory fog switch and it works like stock.
I don't remember the plug being there on mine but that doesn't mean it's not there (ECS).Quote:
Originally Posted by stealthee
Unsure. I'd have to check ASA and see if there's different part numbers based on years.
I'm keeping ECS, I think. I like the idea of being able to swap suspension profiles electronically. I'm setting this thing up for end game build, which means 6G74, with 6G75 crank, etc. Any suggestions on things I might have overlooked while I'm finishing up the design for the dash? E-Manage Ultimate v2, defi gauges, two for EGT and the third for oil pressure, a blackstealth digital gauge that measures boost, coolant temp, knock, and wideband O2, a greddy turbo timer that measures the voltage. I think tahts everything. Any other suggestions gents? Anything I've missed? It almost sounds like it would just be better to buy the VR-4 harness and play it safe. Your thoughts?
For what it's worth, looking through ASA, looks like all DOHCs share the same interior/body and dash harness. (Number MR337350)
REALLY. Interesting...... I appreciate you looking into it man. I'll just use the NA one then. Thanks much. Any other suggestions for a 6G74/75 build while I have the whole thing in pieces?
You're onto it, some interesting things I've noticed with dash harnesses though if anyone's interested:
-Automatic transmission vehicles use a different harness, the cluster plugs are missing the pins and wiring for the gear position lights.
-There is a change in turn signal/hazard light wiring between 1st and 2nd gen and they are not compatible without modification
-2nd gen harnesses don't operate popup lights without modification