Turbo Timer install

[ride4lame]

Hi, i remember seeing someone post about this but searched and couldn't find it...Any way, i just got an HKS type 0 turbo timer and plan to install it soon. I was reviewing the directions and it seems real easy...(cut and splice a few ignition wires in the colum)But the instruction include ECU diagrams. As far as i can tell the install has nothing to do with the ECU. Am i real lost? And is the harness worth getting.. Thanks for all the help

[Tai Mai Shu]

spend the 10 bucks and then you dont't have to cut the wires.

[HotWIRED]

One of the easiest DIY installs. You'll have to tap into the tach wire on the ECU, so the AUTO-TIMER will work.

[Silviagirl79]

how long goes this DIY install (w/o harness) take? Also I bought a GReddy turbo timer, which harness can I use with that one?

[BuudWeizErr]

Get a harness, it's turns a 2 hour job into a 30 minute job, seriously. For 10-25 bucks, you cannot lose. The hardest part is hooking up the wire for the e-brake, and even that is cake.

[SpeedRacer1]

Yes people, there is a reason why this has never been really discussed before. The install really is that straightforward even for those of you that have shops install everything.

[Silviagirl79]

what type of harness will the GReddy turbo timer be able to use?

[SpeedRacer1]

Well if Trust/Greddy ever releases their harness from Japan that would work. Otherwise you may be able to use the HKS harness with the Greddy TT. The HKS harness can be used with the Blitz and ApexI units. Although it does require some cutting and splicing. So I dont see why it wouldnt work on the Greddy unit.

[Silviagirl79]

ok so I guess I have no other choice but to get the hks harness.

[bp2ooo]

Ok well i dont know if my 240 is retarded, but i have talked to a couple differnet shops, including enjuku. I have evan emailed them digital pictures, and they didn't know whats going on. Every harnes is only 5 wires. I buy them, they plug in, but the car wont crank. Turbo timer comes on, car accessories work fine, but car wont start. I have tried a couple differnet hks harness, and even talked to someone at hks, who says there harness is only 5 wires. I am sure its just the ignition wire, but why am i the only one that has ever had this problem. I really wanted to avoid cutting into the stock wiring, but i guess i will have to.

I have evan brought the car to Sound performance, Ultimate z. They botht think its retarded that a harness is made for the car that doesn't work.

[Quick240]

what type of harness will the GReddy turbo timer be able to use?

Just a thought, but this may be a solution for some people (if you have an 89-94 240SX). I bought an HKS Turbo Timer and harness for my '90 240SX a while back, and I noticed the harness looked alot like the harness I used to hook up my friend's timer in his '87 300ZX turbo. Sure enough, when you look up the part numbers for both cars on the HKS website, they're the same harness!!Why might this help you? Well, I know your asking about a Greddy harness, and since Greddy does make a harness for an 84-89 300ZX turbo I'm thinking, that since the HKS harness is the same for both cars, that it's quite possible the Greddy harness is too.

[kbrunjes]

Ok well i dont know if my 240 is retarded, but i have talked to a couple differnet shops, including enjuku. I have evan emailed them digital pictures, and they didn't know whats going on. Every harnes is only 5 wires. I buy them, they plug in, but the car wont crank. Turbo timer comes on, car accessories work fine, but car wont start. I have tried a couple differnet hks harness, and even talked to someone at hks, who says there harness is only 5 wires. I am sure its just the ignition wire, but why am i the only one that has ever had this problem. I really wanted to avoid cutting into the stock wiring, but i guess i will have to.

I have evan brought the car to Sound performance, Ultimate z. They botht think its retarded that a harness is made for the car that doesn't work.

THANK YOU! i have a blitz timer & harness (with 5 wires). it doesn't work. now, i don't know about the other harnesses but the blitz didn't even plug in easily. i had to cut some plastic off of the plugs. when i finished with that it still wouldn't start. i came to the same conclusion, the missing wire must be ignition because everything else seems to come on. i did post a thread during my time of frustration, but i'm not sure if it was this forum or not. i gave up on it for now. so, i still don't know if jumppering that last wire will work or not, no reason it shouldn't.

[bp2ooo]

well at least in not the only one. Maybe there are others out there. Its funny thought because evryone i have ever talked to is dumbfounded by this. Like there is an easy fix, but have sold tons of turbo timer harnesses, and they always work.

[kbrunjes]

yep had the same problem. i think it was heavy throttle i called, but they had never heard of this problem. my cousin has a theory. he thinks that in japan they may have a start button or something(you know like the s2000). placing the starter wire somewhere else. i asked before but nobody replied.

[Structure240sx]

so has anyone used a greddy TT with an hks harness. im about to buy the harness and want to know. tryin to stick with greddy for engine management well at least TT, boost controller probably emanage

[bp2ooo]

Ok, so i figured out what is wrong with the hks harness, first of all the hanress is only 5 wires. For some reason that hks cant figure out they left out a wire. They are aware of the prblem, but are not correcting it.. Makes sense for such a big company.. So anyways the first thing i needed to do was cut the large white with an orange stripe wire. This wire is the constant power wire, without this the car wont do anything. The next thing that needed to be done, was cut the red wire going to the turbo timer, from the harness, and conect it to the constant wire(white with orange strip). Finish up your electircal connections, and you should be good. Not 100% this works with all s14 turbo timers, but my combo was a hks harness, and blitz fatt turbo timer. even though i spent 10 dollars i only had to cut 2 wires, still better then hacking the hell out of my harness, but very frustrating considering ever other one i have done has taken like 10 minutes.

[BuudWeizErr]

Does this only apply to S14's? I've never heard of a problem like that. Weird, but at least there is a fix.

[bp2ooo]

yea, ive put turbo timers in s13's and there fine. I would be curious to see a 1996-1997- or 1998 240 and see if its any different. The chiltions says 1995 has its own wiring, and 96-98 are the same. I dont know if its because 96-98 are obd2 or not. But i have tried every harness made for the car, in a hope that i wouldn't have to cut it... and non would work, so i sticked with hks. alot of the other harness's for the s14 dont even plug into the stock harness so i would suggest getting the hks harness. Another way to solve problem would be slip pin into harness, connect the 6th missing wiring, and then you would just have to cut one, but i couldn't find the pin that would fit. O well, with the steering column put back together, you cant see any wires, and i also leanred what 2 wires i need to use to hot wire an s14. Hmmmm, Chris

[nnkfws333]

Im trying to install mine and just had a quick question,I've got a Greddy TT and I got a harness. I figured out most of it...just hooking in the e brake and the speed sensor but Im lost on hooking up the last part. There are to connectors: 1 has 5 males and the other has 5 female pins. Where do I hook up those 2 last connectors? Thanks if someone replies.

[ride4lame]

if you hooked up the ebrake and tach, and then you have the harness hooked to the timer...

you pull the under dash down, and follow wires that come from the ignition. You will see a connector, undo it. Then the two things you are talking about going between. Done

[nnkfws333]

yeah heh I figured it out but I just didnt hook up the speed sensor....I couldnt seem to find the wire and someone told me to not worry about hooking it up.