Hey Guys:

I failed an emissions test today:

Gas Cap Pressure = Reading=.50 in H20 Limit=7.19 Pass

IM240 Result:
HC = Reading=1.8533 GPM Limit = 1.20000 FAIL
CO = Reading = 27.8748 GPM = 20.00000 FAIL
NOX = Reading =3.5539 GPM 2.50000 FAIL


My question: Would doing the regular, basic stuff like Driving around for 45 minutes at highspeed and adding CRC 05063 type stuff work?

Or are these so HIGH that I need to replace the CC?

Thoughts?

Thanks!

Hunter

Sounds like doing a basic tune-up, an Italian Tune-up, check for vac leaks and try a re-test. cleaning the throttle body is optional but a good idea. Flame trap and hoses is the same.

Checking the O2 sensor to see if it is in spec would be wise.

So I will guess your cars is a 1992 240?

"adding CRC 05063 type stuff"

Not sure what this is?

When was the last time you did cap, rotor, plugs, wires, oil change, air filter? Are there any stored codes? How does the car actually run and what type of gas mileage do you get (stick or auto, type of driving?). Last time you cleaned the flame trap and associated hoses? Last time you cleaned the throttle body? Have you checked for vacuum leaks?

My best guess, we could get you to pass everything but the NOX with just a good tune-up, including an "Italian tune-up" if you normally drive the car like a grandma, and getting the car good and warm. I am not as confident on the NOX.

If this is the same rolling-road test I see for most pre-ODBII cars, even a decent running 240 with a working cat should pass. Do a search for all the other threads on failing emission for a 240 and check their fixes and the results. wWith the except of the California and Ontario Canada folks, it seems that most of us can get a car to pass without resort to a new cat but think DC (also making an assumption here based on your user name) mirrors the California testing method.

Thanks for the response:

Here's the stuff I mentioned:

http://www.amazon.com/CRC-05063-Guaranteed-Emissions-Formula/dp/B000CIPUR8/ref=cm_cr_pr_product_top

Exactly:

92 240 Volvo with 230,000 miles.

DC Testing.

Drives great. I get about 22-25 Highway. 17-18 city, I think.

Automatic

I probably ran the car for about 20 minutes in the city on the way there.

It was a stationary rolling test (I guess?).

When was the last time you did

cap: No idea.

rotor: No idea

plugs: No idea


wires: No idea

oil change: 1000 miles ago.

air filter: I replaced about 6 months ago.

Are there any stored codes: haven't checked.
ast time you cleaned the flame trap and associated hoses? Last time you cleaned the throttle body? No idea

Have you checked for vacuum leaks? No idea.

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