went for e test today. failed.
got a 90 integra, with a b16, with hi flow cat. i just bought it.
heres the numbers.
@2500 rpm
HC PPM
Limit 200; reading 292

CO%
Limit 1; reading 4.24

NO PPM
N/A

RPM 2659
DILUTION:16.26

@Idle
HC PPM
Limit 200; reading 345

CO%
Limit 1; reading 2.91

NO PPM; N/A

RPM 894
DILUTION:15.73

I was just wondering how bad these numbers are.
it went with no tune up.
oil in the engine was still a gold color.
should i change the o2 sensor along with a tune up?,based on these numbers.
or just do a tune up.

 

N E 1?

 

if you failed which it looks like you did... then they are bad

 

I think he knows they're bad already, he asked "how bad" they are

 

exactly..

 

wow.. i would say your burning holes in the ozone layer. But on account that i'll die from cancer before it destroys the world.. im not too caring

 

it shouldn't matter how bad.... if you failed by more then double the allowable limits of most of the readings he should know his car sucks

 

OK, let's try to be helpful.... have you ever passed emissions before with this motor? What ECU are you running? Engine temp and intake temp - are those sensors reading okay? MAP sensor reading okay? What fuel pump and what fuel pressure regulator? Fresh spark plugs, and be sure you have a solid spark there to promote full burn.

 

K, let's try to be helpful.... have you ever passed emissions before with this motor?
YUP Previous owner said it passed 2 years ago.
What ECU are you running? PR3?
Engine temp and intake temp - are those sensors reading okay?
Throttle pos sensor code.
MAP sensor reading okay?
should be
What fuel pump and what fuel pressure regulator?
B&M fpr. stock pump
Fresh spark plugs, and be sure you have a solid spark there to promote full burn. installing tonite

you think ill pass with a full tune up?

 

put in a cat and you will pass... hi flow cats are pieces of crap and make you almost always fail.
The difference will be huge, you will pass for sure

 

even if the cat is 2 years old?

 

i used an 8 year old one once! It worked. Now I've got a brand new one, though, its healthier!

 

i mean the hi flow cat,2yes old
you think the throttle pos senser has anything to do with it?
its disconnected rite now

 

high flow cats that are working dont make you fail..
cripes.

i passed with a turdbo and 3" exhaust/3" high flow cat.

 

But I thought that emissions and turbos are a whole different story. I've seen firsthand a stock turbo ford thunderbird (or couger, I can't remember) pass with a hollow cat.

The emission guy apparently said that turbos are renowned to run really "clean" when tuned properly

 

Of course the TPS has something to do with it - grab a new one from a junkyard!!! TPS is key to how your car runs!!

 

Usually if your idle test is bad your cat is fried. You should have had the TPS on from the beginning. You have probably been running too rich which can foul the cat.

 

what honda tps's will fit on my b16 obd0 engine.

 

ok you guys are misisgn the fact aht he has a b$m FPR wchich is probobly runing ht car irch...back off on the fuel pressure...is your ecu chipped..?? get a stock cat and lean out the fuel pressure and you will pass....problem here I feel is the FPR

 

FPR is reading 40 psi.
whats the lowest i can set it