After removing aftermarket security system it will not start

Tiny
MAC87
  • MEMBER
  • 1994 HONDA PRELUDE
  • 2.3L
  • 4 CYL
  • 2WD
  • MANUAL
  • 200,000 MILES
Took out aftermarket security system now car will not start. Everything is working, I can hear fuel pump come on, all lights work. Push in clutch and try to start it will not do anything. They spliced a bunch of wires for the aftermarket security system and I have replaced it all, but still nothing. I have one plug that does not go to anything, do not know where it goes.
Sunday, September 30th, 2018 AT 10:49 AM

6 Replies

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I am Danny.

Quick question first. Can you use your phone to take a picture of the plug/harness and upload it here? It would help us identify and we can attach the appropriate wiring diagrams for you. Thanks for using 2CarPros.
Danny-

https://www.2carpros.com/articles/how-to-check-wiring
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Sunday, September 30th, 2018 AT 9:53 PM
Tiny
STEVE W.
  • MECHANIC
  • 14,153 POSTS
To add a question, If you turn the key on and push it to bump start it, does it start and run? That would help narrow down if it is just the starting circuit or if it is more involved.
Plus could you add the make and model of the items you removed, sometimes you can look those up and find install instructions or wiring information.
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Sunday, September 30th, 2018 AT 10:20 PM
Tiny
MAC87
  • MEMBER
  • 3 POSTS
The only thing I took out was a Hornet 740t it was spliced into the photo wires. That is only thing I took out and there is no where to plug it into. Have not touched any other wiring. Will not push start either.
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Monday, October 1st, 2018 AT 8:17 AM
Tiny
MAC87
  • MEMBER
  • 3 POSTS
Will push start sorry auto correct changed it.
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Monday, October 1st, 2018 AT 9:23 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 50,480 POSTS
The wiring needs to be connected properly not just twisted together next. Can you take shots of under the dash so we can see where the connector plugs into?
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Wednesday, October 3rd, 2018 AT 1:39 PM
Tiny
STEVE W.
  • MECHANIC
  • 14,153 POSTS
Okay, looked at the wiring and pulled up the install sheet for that unit. It is a basic alarm with a plug in starter cutout. So there is a plug in the starting circuit under the dash and this unit would have had a short jumper wire plug that installed in there to keep the starter from operating. If that is still in place then it is very likely the item that is causing the no start. The plug you have should be for the optional alarm Honda had. Not used without the OEM so that is why there is nothing to plug it into.
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Thursday, October 11th, 2018 AT 4:51 PM

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