Car wont start with turbo timer

Information on the naturally-aspirated KA24E and KA24DE engines.
Structure240sx
Posts: 5615
Joined: Sun Oct 06, 2002 5:04 pm

Post

i tried hooking up my turbo timer today after having it for months. its an old version hks and i have the hks harness for an s14. i plug in everything and it will turn on in the on postion witht he ignition. and will turn everything off after the specified amount of time. but when i turn the key to the start position nothin happens the car wont start. im thinkin it may have something to do because the car used to be an auto. can anyone help im gettin tired of sittin in my car for 30-60 sec before shuting it off whenever i drive somewhere


andrave
Posts: 3264
Joined: Mon Apr 07, 2003 10:00 am
Car: 1989 Nissan 240SX Coupe
Contact:

Post

did you hook up the emergency brake wire? most of them won't leave the engine running if the emergency brake isn't engaged, from what I've read...I know a guy with a 300zx that didn't splice his E brake and his did the same thing.

Structure240sx
Posts: 5615
Joined: Sun Oct 06, 2002 5:04 pm

Post

no i didnt splice it with the e-brake. but i dont know what wire to do that with. there are 3 wires that go into the plug thats plugs into the TT harness (blue, green, red). then a black wire ground and grey wire power that come out of the TT. i put the grey wire right to the battery jsut to see if it worked and it did turn on. i dont know how i would splice intot he ebrake. maybe i jsut get a new type o or sumthin they glow red that would be cool

andrave
Posts: 3264
Joined: Mon Apr 07, 2003 10:00 am
Car: 1989 Nissan 240SX Coupe
Contact:

Post

hks's website doesn't offer much help.

User avatar
huguetpj
Posts: 996
Joined: Mon Aug 19, 2002 7:54 am
Car: 93 KAT Coupe

Post

Structure240sx wrote:no i didnt splice it with the e-brake. but i dont know what wire to do that with. there are 3 wires that go into the plug thats plugs into the TT harness (blue, green, red). then a black wire ground and grey wire power that come out of the TT. i put the grey wire right to the battery jsut to see if it worked and it did turn on. i dont know how i would splice intot he ebrake. maybe i jsut get a new type o or sumthin they glow red that would be cool


Are you sure the grey wire is for 12V? Although if it was the TT wouldn't count down, just shut down.

The 3 wires seem ok: blue = acc, green = ON, red = 12V... right?

Try jumping the grey wire to ground and try that. My Blitz TT has 6 wires (blue, green, red, purple & 2 grounds) and the purple wire is the e-brake.

Structure240sx
Posts: 5615
Joined: Sun Oct 06, 2002 5:04 pm

Post

ok ill try grounding the grey wire and splicing it with the e-brake. which wire on the e-brake. i cant remember what the e-brake wire(s) look like which one is it in case i cant figure it out?

User avatar
huguetpj
Posts: 996
Joined: Mon Aug 19, 2002 7:54 am
Car: 93 KAT Coupe

Post

For starters just ground the wire to any grounded screw you can find. If that works, then you´ll know that's the e-brake wire. If it is here are some pics of my install to help you out:

http://katcostarica.240sxonlin...r.htm

User avatar
C-Kwik
Moderator
Posts: 8070
Joined: Thu Aug 01, 2002 9:28 pm
Car: 2013 Chevy Volt, 1991 Honda CRX DX

Post

Compare the HKS harness to the factory Harness. I have an Apexi timer and it came with a harness. It was used ona n auto S14 before mine and it had worked fine. I plugged it into mine and it would not start. I compared the wires and there was one missing. I went to the electronics store and picked up a matching male and female spade connector cut a small piece of wire and added the missing wire and it worked fine afterwards. IIRC, there are 6 wires on the S14. The harness I had only had 5.

Structure240sx
Posts: 5615
Joined: Sun Oct 06, 2002 5:04 pm

Post

yea thats the same with mine. i thought about tryin to connect them. but i thought it may have been a wire that needs the key to be in so now u dont need it. that must be it it was one of the first things i noticed when puttin it in there were only five but there was no other plug that it could have been

Structure240sx
Posts: 5615
Joined: Sun Oct 06, 2002 5:04 pm

Post

C-Kwik wrote:Compare the HKS harness to the factory Harness. I have an Apexi timer and it came with a harness. It was used ona n auto S14 before mine and it had worked fine. I plugged it into mine and it would not start. I compared the wires and there was one missing. I went to the electronics store and picked up a matching male and female spade connector cut a small piece of wire and added the missing wire and it worked fine afterwards. IIRC, there are 6 wires on the S14. The harness I had only had 5.


well i did what u siad today and its works great. looks perfect too. thanks so much it was such a pain to sit in my car for 30-60sec sexpecailly with my girl jsut like what the hell.

problem now is the alarm isnt arming unless i wait til the car is off and arm it with the remote agian. huguetpj's install page talks about this im goint o look at it a lil btter now to get the alarm working

Structure240sx
Posts: 5615
Joined: Sun Oct 06, 2002 5:04 pm

Post

also practiced my "customizing" skills

Structure240sx
Posts: 5615
Joined: Sun Oct 06, 2002 5:04 pm

Post

dont looks at the glue. ill get rid of it i was doin this tonight only with my dome light

User avatar
C-Kwik
Moderator
Posts: 8070
Joined: Thu Aug 01, 2002 9:28 pm
Car: 2013 Chevy Volt, 1991 Honda CRX DX

Post

The alarm can't arm since the engine is still running. There are a couple of ways around it. You can source a differnt 'Engine on' wire that will actually turn off when the motor is running on the turbo timer. The problem I see with this is the shock sensor might get triggered while the motor is off or while it shuts down.

Or add a delay switch that will trigger a door sensor momentarily a set amount of time after the car shuts off. This will only work if your alarm is able to autoarm. If you have auto door locks, you will need to have it lock the doors when it auto arms. I don't like this method only because of a bad lock out experience I had with autoarm. I set mine so that the doors do not lock when autoarming.

This one is actually a little more complicated. There are probably a few ways you can implement it. But what it involves is setting it up so that tha alarm can be armed while the turbo timer is on. There will have to be a few different components to make it work, but it will have to cut the engine on signal to the alarm while still allowing the turbo timer to run the motor. I'd put in a delay switch that cuts the shock sensor signal until a few seconds after the turbo timer shuts off the motor as well. I thought about trying to build a device that can accomplish this and actually put it on a circuit board rather than using a bunch of sep[erate components to keep the packaging small. I have an electrical engineering friend that I discussed this with and he says it can be done. We have to have time to it down together and figure out the components I need. I have to actually get a hold of him, but his tel# changed and I don't know his new one yet. If I ever figure this out, I'll post up details. It shouldn't be too hard to do, especially with separate components, but I'm not that familiar with circuit board components, so I'd rather wait for my friend to help me out...

User avatar
C-Kwik
Moderator
Posts: 8070
Joined: Thu Aug 01, 2002 9:28 pm
Car: 2013 Chevy Volt, 1991 Honda CRX DX

Post

Oh and lastly, I did see years back in an Alpine Catalog where some of their alarms had a lead for a turbo timer. Not sure how it worked, but it's worth investigating...

User avatar
huguetpj
Posts: 996
Joined: Mon Aug 19, 2002 7:54 am
Car: 93 KAT Coupe

Post

C-Kwik wrote:The alarm can't arm since the engine is still running. There are a couple of ways around it. You can source a differnt 'Engine on' wire that will actually turn off when the motor is running on the turbo timer. The problem I see with this is the shock sensor might get triggered while the motor is off or while it shuts down.... I'll post up details. It shouldn't be too hard to do, especially with separate components, but I'm not that familiar with circuit board components, so I'd rather wait for my friend to help me out...


Yep to all of what you said. You need to have an 'Engine ON' signal that goes off when the turbo timer is on but the key is off. I did this by having a relay between the 'ON' wire and the alarm. The relay is controlled by the 'key IN' signal. This way the alarm sees the car on only when 'Key is IN' AND 'Engine ON'.

Now, depending on your alarm, the shock sensor can go off or emit the warning sound while the engine is ON. I, on the other hadn, didn't need to adjust the sensor or anything it just doesn't "hear" the engine. But it warns if I leave my stereo too high.

On other issue I had was the alarm current sensing. When the car turned off the alarm sensed a change in current and went off. There are some alarms where you can change this sensing to start wither 30 secs or 3 min after the car goes off. This is used mostly on cars with electric fans. Anyway, I haven't seen any of those alarms recently and mine didn't have it, so I just turned off the option.

The link I gave above goes into more detail.


Return to “KA24E / KA24DE Forum”