Iiiiiiiit's smoggin time!

[MADMarc]

...okay, I hate smog time. Just did a little pretest on the car, because I just wasn't feeling my luck on the machine yet, and my HC's are high only at an idle. They spiked when he let off of the gas after maintaining higher RPMs and settled, but were still too high. That in it's own makes me want to look at the fuel components because of how it spiked. I have heard of many people passing smog w/o all of the required equipment, but just in case, here are the few things I have on the fuel system:

Hotwired Denso pump, resistor bypass, AEM AFPR and a custom fuel loop.

Should I toss back in my OEM fuel pump for the test? I don't think the AFPR or loop contribute...what about the resistor bypass? I'd be going from a hotwired pump to a hotwired pump, just one that flows much less.

As for plugs I have NGK BKR6ES gapped at about .036 (would 7's be better for efficient combustion?), new coils and MSD wires w/about 30k on them.

Ah, yes, this is where I say I also don't have precats, do have an a/m main cat, vac reduction, and egr delete.

I am going to pop in some new plugs because they're cheap and I was going to anyways, also thinking about bolting up the front precat if it will help, swap out the fuel pump and try again.

Ideas of what it might be?

[TwIzTeD_3kGt]

How do you have the pump hot-wired? The pump resistor shouldn't need to be bypassed if you hot-wired with the original power circuit switching a relay.

I would undo the hot-wire and see what happens. I know just a fuel pump hot-wire made my car run a lot more rich. A pre-cat in the mix should definitely help.

[i3igpete]

if you have an AFC, why not just dial back the correction a bunch at idle?

[ntcmpjg]

if you have an AFC, why not just dial back the correction a bunch at idle?

Because in cali the AFC will cause you to fail just being in the car. Cali sucks for modded cars


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[MADMarc]

It was a while ago but I ended up bypassing the resistor and then hotwired it down the road never going backwards. I am very curious if I should put that guy back on or not and the effects of doing so.

As for the smog, I am all good to go now A second test and voila!

[TwIzTeD_3kGt]

Ah no worries then, nice!

No point in putting the resistor back on.

[i3igpete]

install afc and hide it? or just purposely have a vacuum leak?

[MADMarc]

install afc and hide it? or just purposely have a vacuum leak?

Sorry, I don't follow :/

[TwIzTeD_3kGt]

They won't know about your AFC if it's hidden. A vacuum leak will lean out the A/F, thus less HC PPM. I wouldn't recommend inducing an un-metered air leak though.