Any interest in SAI delete circuit?

[particlewave]

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[alex.rhodes]

What's the cost? Is there a performance benefit from no SAI? I keep reading about the SAI headaches so getting rid of it could be a good thing.

[thstone]

PW, that looks like a nice bit of kit! Well done. SAI codes can be a real PITA.

Originally Posted by alex.rhodes

Is there a performance benefit from no SAI?

No. The secondary air injection system only operates for about 90 seconds at start up to reduce cold engine emissions (so your car might pollute more but it won't have more or less power).

[Gelbster]

Originally Posted by alex.rhodes

What's the cost? Is there a performance benefit from no SAI? I keep reading about the SAI headaches so getting rid of it could be a good thing.

Alex,
If this works s I hope it will permit complete removal of the entire SAI system.The entry ports for SAI air on top of each cylinder head could be blocked off with plates.This is what the Track guys do.
Previously there was a big penalty for doing this to road cars in California-The CEL would illuminate & it would fail the Smog Test and get you into hellish conflict with the Authorities.The Ready Status would also be a Smog failure.
Hopefully this hack would not trigger a CEL nor would it produce A "Ready Status " failure.
To pass the Visual Test as part of the Ca Smog Test, you could leave the SAI pump and visible hose in place. Just disconnect it electrically.
You would still need the crack-prone Vacuum Acumulator and it's brittle vac hoses for other vacuum controlled functions other than the SAI.
I am just learning about this new part so please do not rely on my optimism - yet.

[faverymi]

I'll buy one.

Please put me in line.

email directly at.

f a v e r y m i at yahoo dot com

Thank you

[78F350]

I'm interested. I keep telling myself I'll fix my '01's SAI next week (for about a year). I'd rather just cap off the vacuum.

[Dave80GTSi]

I applaud your efforts here, but what would -really- be a nice build would be a similar module which would emulate the signal from the post-cat oxygen sensor.

Thus allowing us to use aftermarket non-cat headers without the lack of a cat triggering the CEL due to the improper signal from the secondary oxygen sensor.

How complicated would this sort of thingy be to construct?

Cheers - DM

[Stroked & Blown]

I'm in for sure

[tommy583]

Yes....yes I am.

[Jamesp]

Originally Posted by Dave80GTSi

I applaud your efforts here, but what would -really- be a nice build would be a similar module which would emulate the signal from the post-cat oxygen sensor.

Thus allowing us to use aftermarket non-cat headers without the lack of a cat triggering the CEL due to the improper signal from the secondary oxygen sensor.

How complicated would this sort of thingy be to construct?

Cheers - DM

I think you just need a 600mv constant voltage power supply while the car is running hooked to the O2 leads, and a resistor to make the car think the heaters are working. For me that would be super complicated to build, for P-wave, well if he's reading this, he's already designed it.

[Jamesp]

And one more item, What are the SAI delete circuits going to run? I now consider myself an SAI surgeon after diagnosing and fixing mine, now I want to be an SAI ninja and chop the damned things head off.

[thstone]

Originally Posted by Gelbster

The entry ports for SAI air on top of each cylinder head could be blocked off with plates.This is what the Track guys do.

Here are the PN's for the blocking plates and gaskets:

[particlewave]

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[Jamesp]

Originally Posted by particlewave

I'm not looking to make a profit...

Make a profit, otherwise you'll starve. If that happens we don't get your follow on secondary O2 delete circuit.

[Stroked & Blown]

Thanks, Tom - I've been looking for those part numbers.

[steved0x]

Please put me in line for one at $60 or even a little higher.

[Gelbster]

For the late arrivals to this Thread, please note the first item we discussed is a SAI bypass hack. Later there is discussion about a post-cat O2 sensor emulator . Two totally different products. Both helpful but 2 different products.I hope this helps.

[PR61]

I'd like to buy the SAI bypass hack.

Perry

[particlewave]

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[j.fro]

I'd like to be in for this as well. PW, thanks for finding a solution!