Houstonderk

iTrader: (3)

When i hold the gas sitting still and get like 5 to 6k and let off the gas my a/f guage goes from rich all the way down and then doesn't show anything till idle then it pops back to rich, and there is some backfiring to. Is that just from that acv that i removed? And is there a way to get that to go away besides putting that valve back on?

hondahater

iTrader: (2)

that is normal. WHen you rev the engine and then stop revving it, the fuel is cut until it is needed at whatever the idle is set at thus creating a very lean spot. I see this all day long on my wideband.

Houstonderk

iTrader: (3)

Okay, because i didn't want my engine to pop. lol so I can't get it to stop backfiring? I timed it alittle better and its not too bad.

WAYNE88N/A

Seeing that is also a good indication that your TPS is connected and adjusted correctly

Houstonderk

iTrader: (3)

Why?

Houstonderk

iTrader: (3)

Oh and one last thing. It likes to flood alot after runnint alittle hard and im going to get the compression first of course but what else could do this? I know the injectors are fine because i could start it up alot when not too hot.

Houstonderk

iTrader: (3)

If that helps.

WAYNE88N/A

Because it's the TPS that tells the ECU you've lifted your foot off of the throttle...

Without a TPS input, or if it's adjusted high, the ECU won't fuel cut on a throttle lift...

Houstonderk

iTrader: (3)

oh okay.

Houstonderk

iTrader: (3)

But is there anything to adjust so it doesn't scare the crap out of me when it backfires?

WAYNE88N/A

There are several causes of backfiring other than TPS- improperly adjusted mechanical idle, bad anti-afterburn valve in the ACV, timing...

YearsOfDecay

Someone correct me if I'm wrong. but if you remove the ACV... doesn't that bung up the anit afterburn vavle???

WAYNE88N/A

Yep...

Houstonderk

iTrader: (3)

Well I think my fuel gauge was wrong and when boosting probably ran out of fuel and kapowee. Just took the engine out and already to pickup another n/a engine for 100 bucks.