Cis Co Adjustment

[oneblueyedog]

To set the mixture on my 78 911sc with air pump and euro pre muffler-you set the mixture, fully warmed engine to 2.0 with the air pump belt disconnected so it's not blowing extra O2 downstream, right?

Anyone in the DFW area know a shop that would let me use their sniffer? Of course I'd pay a fee. I want to set it.

Is there any reason to leave the car overnight as one shop suggests?

Another shop said not to waist his time or mine adjusting it. I was mentally prepared to pay $50 to twist a 3mm allen screw. The auto tune and lube business must be lucrative.

Almost tempted to build a wide band testing system as posted. I already have a sensor port on the Euro pre. Anyone do this?

I tried the K&N meter, but I don't trust it.

Thanks for any input.

[oneblueyedog]

Bump

[afterburn 549]

I know it has been discussed alot b4...do a lil sech, and the consesus wae you did not ned a machine

[oneblueyedog]

Thanks afterburn.

I think the hardest part is finding a shop that will humor my tinkering.

I might be running rich but it's pulling great without knock!

[afterburn 549]

I dont remember the whole story ,but something like back off till stumble and then turn back a 1/4 was better then any machine adj.Now dont quote me here it was just something like that.