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Wiring Wideband O2(LC1) on Pre-Vats car

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Old 04-16-2010, 01:03 PM
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Wiring Wideband O2(LC1) on Pre-Vats car

Have a 87 Camaro I'm planning on putting a Innovate LC1 onto this weekend.

I have read that voltage spikes are bad and you should not have it powered when the car is cranking.

Where can I get voltage that is hot when key on...off when in start, and on when running?

I have looked for a relay for the starter that would provide such a voltage...but can't figure it out on my Non-VATs car. Most posts I've seen refer to the VATs relay.

Any suggestions?

Thanks,
Old 04-17-2010, 07:47 AM
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Re: Wiring Wideband O2(LC1) on Pre-Vats car

Originally Posted by gsf-87IROC
Where can I get voltage that is hot when key on...off when in start, and on when running?
,
Nowhere unless you use a relay controlled by the starter circuit as suggested in the Innovate instructions
Run key on power from suitable source through a 5 pin relay (wired NC ) that is opened by starter circuit.That will cut power to WB while cranking
Old 04-17-2010, 11:40 AM
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Re: Wiring Wideband O2(LC1) on Pre-Vats car

Originally Posted by vetteoz
Nowhere unless you use a relay controlled by the starter circuit as suggested in the Innovate instructions
Run key on power from suitable source through a 5 pin relay (wired NC ) that is opened by starter circuit.That will cut power to WB while cranking
Actually, after reading the Service manual, found that I already have a power source with this 'feature'. So I'm going to run that to a relay to power the relay and run 12V from the batter to the relay(Norm Open). Should get me what I need. Some of the fuses are hot all the time...some are on only when in run. I happened to have run such a wire years ago for N20....but its laying unused right now. So that was a bonus.

I read the Innovate manual and it only said to run 12V to it with min 5 A fuse. No where did I see anything about a relay in it. I tried to go to the forum yesterday and it was down.
Old 04-19-2010, 09:48 AM
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Less Relays, Less Weight !

Yes there a circuits which are hot in run but not hot in start no relays required.

One of them is the wiper circuit.

You can tap into that circuit, add a fuse, and you’re good 2 go.


Happy Racing!



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