Wiring Harness

GettaRobo · 04-26-2010, 07:54 PM

Yes, the connectors were on so well that the connectors ended up breaking off. A lot of the other connectors are really messed up to. Most of the clips are broken on it. Basically I'm thinking of doing a complete engine and tranny swap since the engine hasn't worked right off the get go and no one knows what's wrong with it. The starter is probably a valid point and that could turn things ugly... I guess maybe I'd be better off finding a new auto loom on ebay or on the forums.

P.S. The only reason I even went into the injectors was because they were giving funny ohm readings and that's when I found that the connectors were 'stuck on' to the injectors

GettaRobo · 04-28-2010, 05:58 PM

It seems to me that the main problem with using the manual loom with the auto tranny is the tranny itself since there is nothing for the connectors to plug into. If I were to use the manual loom and swap over the W58 from the parts car, would it be reasonable to assume that the issues mentioned above would go away?

Supra_Freak_7m · 04-28-2010, 06:22 PM

You would have new issues though. You have to do something to close the starter circuit so you can start the car. It is normally the auto neutral safety switch that allows the car to start in neutral or park only. I believe this switch is closed for on and open for off. However a manual neutral safety switch is open (meaning button is not being pressed )for on and closed for off similar to a stop light switch. Not 100% positive on that but I believe thats how they work.

GettaRobo · 04-28-2010, 07:05 PM

Yeah I was reading somewhere that you can jumper the connector for the neutral start switch which causes the reverse lights to magically not work anymore. It mentions that you have to wire them up separately for functionality, but I can't remember where I saw it.

04-28-2010, 06:22 PM	#3
Supra_Freak_7m Intake Join Date: Apr 2010 Location: Montana Posts: 40	You would have new issues though. You have to do something to close the starter circuit so you can start the car. It is normally the auto neutral safety switch that allows the car to start in neutral or park only. I believe this switch is closed for on and open for off. However a manual neutral safety switch is open (meaning button is not being pressed )for on and closed for off similar to a stop light switch. Not 100% positive on that but I believe thats how they work. __________________ 1987 Toyota Supra 7MGTE AUTO 1987 Toyota Supra 7MGE MANUAL 1990 Toyota Supra 7MGTE AUTO-> MANUAL

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04-26-2010, 07:54 PM	#1
GettaRobo 3" Exhaust Join Date: Apr 2009 Location: Saskatoon, SK Posts: 65	Yes, the connectors were on so well that the connectors ended up breaking off. A lot of the other connectors are really messed up to. Most of the clips are broken on it. Basically I'm thinking of doing a complete engine and tranny swap since the engine hasn't worked right off the get go and no one knows what's wrong with it. The starter is probably a valid point and that could turn things ugly... I guess maybe I'd be better off finding a new auto loom on ebay or on the forums. P.S. The only reason I even went into the injectors was because they were giving funny ohm readings and that's when I found that the connectors were 'stuck on' to the injectors

04-28-2010, 05:58 PM	#2
GettaRobo 3" Exhaust Join Date: Apr 2009 Location: Saskatoon, SK Posts: 65	It seems to me that the main problem with using the manual loom with the auto tranny is the tranny itself since there is nothing for the connectors to plug into. If I were to use the manual loom and swap over the W58 from the parts car, would it be reasonable to assume that the issues mentioned above would go away?

04-28-2010, 07:05 PM	#4
GettaRobo 3" Exhaust Join Date: Apr 2009 Location: Saskatoon, SK Posts: 65	Yeah I was reading somewhere that you can jumper the connector for the neutral start switch which causes the reverse lights to magically not work anymore. It mentions that you have to wire them up separately for functionality, but I can't remember where I saw it.