It's not so much that I'm failing emissions (I can get around that) but, based on what the test is saying I'm using more gas than I should. Here's where I'm at. After the 1st test the result was pass everything except high "HC". Which according to them is Hydro Carbons which is raw gas. To pass was 0.8 or less. I rang the bell at 5.432. I also had a fluctuating idle. So I replaced plugs, both 02 sensors and some leaking vacuum lines. The car ran much better. Went for the test today and "HC" is still high 5.209 and NOX is 1 point over passing. Failure on both now. Performance wise there is a problem. If I take it easy things seem OK. When I get on it there is a miss, around 4500rpm, or some other issue I can't figure out. I didn't change the plug wires at the time as they only have about 20,000 miles on them, according to the previous owner. I have tried to check for the miss by pulling the plug wires at the coil. It appears all are firing. When I changed the plugs I did notice that cylinder 6's plug was wet.... Not the good kind of wet, the gas soaked wet. The 02 sensors were black confirming a rich fuel mixture. Given this info does anyone have any advise/suggestions.

Is your car stock?

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06 Blue EVO 9

G-ELL,
It's a 1992,vr4, 13G turbos, Walbro fuel pump, and up until a couple hours ago had an APEXI-SAFC hooked up. I removed the SAFC thinking I'ld let the ECU take over. I had no clue as to what or how to use the SAFC anyway. The previous owner had it in for 550 injectors. I didn't know if it was "reset" when he put the stock injectors back in (without telling me) when I bought it. NO CHANGE. Timing belt was changed at 96,000 and it now has 113,000. Is it normal for the coil terminals to arc across eachother if a plug wire is pulled--as I did to try and look for the miss. BACK IN THE DAY this wasn't good. I think we use to call it Carbon Tracking. It usually took place inside the distributor cap. But, anyway...Hope to hear from you soon.
Mike

Yes that's normal for the coils to arc. That's actually a good thing (means they're still very strong).

What kind of plugs are you running and what are they gapped at? Run a compression test lately?

G-ell,
Just put in NGK, Iridium, gapped .40---parts guy said "do not regap" per NGK. Nope haven't checked compression....don't know if I want to either. But, of course I will just to be sure. Can you give me what the acceptable pressure range would be. Also if you know off hand- how much brake fluid does the system hold. I've got some speed bleeders coming so I can get rid of the coffee colored stuff in there now....
THANKS again for your attention.
Mike

IIRC, 0.040 is the stock gap. I'd bring that down to 0.034 or 0.032.

Mad Scientist -- won't he be real rich without the SAFC?

Hang in there Mike, we'll get'r done.

SJ

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Not with the stock injectors. ...and the .04 gap will do him better for emissions. He shouldn't narrow them any more.

I thought he had larger injectors?

SJ

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Uh -- duh.

Thanks Matty.

SJ

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take the injectors out, send them to cruisinperformance, and have them flow tested. perhaps one is stuck open. (or more than one.)

12 bucks an injector.

Plus they come back shiny, and like new with new o-rings and everything.

Adam

P.S. Matt, my o rly picture? eh? eh?

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I think these are stock injectors- gray body brown top? I can go get larger injectors if it will save SJ from a beat down. I saved one of the the old plugs and with a little wire and a switch I can screw it into the exhaust pipe and have a flame thrower with that much raw gas coming out....HOMER SAYS ---DOH !! Give me a day or 2 to borrow a compression tester and a week or 2 to work up the courage to get to those back plugs again... Actually I should be able to get to this in a couple days. If the wife will let me spend that much time with the car again. I just noticed I dropped a zero in my posting of the plug gap. SO---nope they are not gapped at almost a 1/2 inch (.40 vs. .040) Thanks for not pointing that out. Thanks again,
Mike

and check your oil.

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One more Mod that I didn't include...Now, bear with me cause I'm new at this and I'm 52 years old and don't know if this matters but, has a "manual boost control set at 15" per previous owners E-Bay listing.

what does the boost gauge say.

not the stock one. need a reading off an aftermarket one.

and I'd turn it down to 13 or 14 psi, just to be on the safe side with stock injectors in it. especially with 13G turbos.

Or put the air fuel controller back on, get some DSM injectors, and re-tune it.

_________________
Bad decisions make good stories.
Look at it! LOOK AT MY @SS AND TELL ME IT'S PRETTY!