2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Engine does not turn 🙉 Help me please 😊

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Old Oct 17, 2022 | 01:28 PM
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Engine does not turn 🙉 Help me please 😊

Hi I have rebuildt a S5 T2 engine that is from a LHD car, and have insert it in my RHD jdm car. I used rhd engine harness and the ecu is jdm.
Now i got everything mounted, and i have a LHD T2 too, so I have been using that too see that I have done it right with the wiring and so on.
But now when i try to turn the key, nothing happens 😱

The display in the dash shows 'antilock' when i turn the last step on the key to start it...And i hear some clicking in the front.
I would think this is ABS, but I need to ask you guys if it could have anything to do with the starter want run? 😉
No stupid qustions? Or? 😆

If not, any ideas of what to do? 😊
Every grounds are good and on the right places.
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Old Oct 18, 2022 | 11:56 AM
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As far as I know, the starter is "dumb as a rock". If it gets power, and the cable from the ignition key delivers 12V, the starter will turn. ECU isn't involved.

Check that the starter gets 12V between the 2 thick cables. Then check if the small 1-pin cable delivers 12V against ground when you turn the ignition key to the starter position.
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Old Oct 18, 2022 | 12:08 PM
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Try jumping the starter with 12v at the starter cut relay. If it turns over, you have an issue with security, the clutch interlock switch, or the starter cut relay itself.
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Old Oct 18, 2022 | 08:01 PM
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Originally Posted by lsmsc
As far as I know, the starter is "dumb as a rock". If it gets power, and the cable from the ignition key delivers 12V, the starter will turn. ECU isn't involved.
negative, the CPU controls the starter cut relay as part of the theft deterrent control circuit. You can bypass the CPU by grounding the light green with yellow wire on the starter cut relay (the relay on the driver's side right by the firewall in the engine bay).
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Old Oct 19, 2022 | 08:14 AM
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http://www.banzai-racing.com/store/2...ter_93rx7.html

Theres also this.
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Old Oct 19, 2022 | 08:25 AM
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That was what I did, no it starts 😃
Orginal this car had automatic gearbox, and now it has manuel..so its a lot of wire's and contacts thats henging...it makes the job a litle harder 😉
It was a broken wire too, 33 years old harness 😱
Start brake in the new buildt engine soon, before I change out turbo,injectors,fuelrails, intercooler, fuelpump, maxxecu ++
Thanx guys! 😎👍
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Old Oct 19, 2022 | 02:09 PM
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Originally Posted by FührerTüner
Try jumping the starter with 12v at the starter cut relay. If it turns over, you have an issue with security, the clutch interlock switch, or the starter cut relay itself.
Thats optional.

IIt's best, you remove the starter, add, 12V (plus and minus) to the big connectors, than add 12V plus to the little connector. See if it clicks and turns.
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Old Oct 20, 2022 | 07:39 AM
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Originally Posted by lsmsc
Thats optional.

IIt's best, you remove the starter, add, 12V (plus and minus) to the big connectors, than add 12V plus to the little connector. See if it clicks and turns.
If you remove the starter, it wouldn't be grounded, thus would not turn over.

Besides, its easier to unplug the starter cut relay connctor and add 12v directly to the starter solenoid wire. This is how I turn the car over while I'm working under the hood.
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