Question about 2001 Chevrolet Camaro

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2001 cannot pass TX inspection

Three emission areas not passing: catalyst; evap; O2sensher

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  • maryarmstron Feb 10, 2009

    Thanks for trying. When given this response, the testing guy said it couldn't be this or the car wouldn't be running. Advised to drive the car about 30-50 miles to see if sensor will reset...meanwhile, requesting a waiver from the state.

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This Usually means that the Catalytic Converter is Bad and needs to be Replaced as the O2 Sensor is On the Exhaust System and the Evap is Detecting High o2 Levels. Please Rate My Response! Thanks!

Posted on Feb 07, 2009

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1 Answer

Where is the catalyst evap? on a


These are two separate systems. Catalysts and EVAP. Codes help.

Aug 21, 2015 | 2004 Pontiac Grand Prix

1 Answer

Won't pass emissions test. what is the catalyst evap?


it all part of your exhaust system, replace entire thing from motor to tailpipe and be done with it. catalyst evaporator is part of the catalytic converter thats part of yr exhaust system designed to remove impurities, they wear out and have platinum in them thats y they r sooo expensive

Aug 21, 2015 | 2004 Pontiac Grand Prix

1 Answer

No no it wasn't because of the O2 sensor that it didn't pass it was a couple of things that came up and the we're Catalyst not ready Monitor Evap not ready Monitor O2 not readyz


You have 8 I/M or Emission Monitors that have to run clear
BEFORE you can go to inspection

Your Catalyst Efficiency comes from the switching comparison
of the front & rear oxygen sensors being out of range

Until you resolve the rear O2 Sensor Heater Issue you won't
know if the cat is good or you have other problems

You need professional scan tool software & a long road test
to even find a problem,then component test,which apparently
wasn't done when they hung the new rear sensor on based on a code

Apr 30, 2014 | Cars & Trucks

2 Answers

Evap system and catalyst not passing for inspection


Evap could be numerous things need to smoke test it, catalyst effiency code? could be a leaky exhausts or need to to a pin point test for best results

Mar 07, 2013 | Cars & Trucks

1 Answer

Tried getting ford f150 4.2 2003 inspected. Replaced air filter and fuel filter already. Check engine lit was on before replacing them . Now check engine light is out . But won't pass inspection.


As for your codes p1131 and 1151: Ford - Lack Of Heated Oxygen Sensor Bank 1 Sensor 1 Switches - Sensor Indicates Lean


Last week I had the very same catalyst, evap and ECG codes come up on my 1999 Mercury Mystique which is like a Ford Taurus. A friend was able to find a hole or leak in the hose connected, replaced it and it runs fine. I havent run it a full and straight 50 miles yet to clear the check engine light but that repair alone changed the entire way the car was poorly driving. Im sure that hasnt fixed all the probs but thats a good starting point.

Mar 04, 2013 | 2003 Ford F150 Regular Cab

1 Answer

MY 2001 CHEVY BLAZER WOULD NOT PASS INSPECTION BECAUSE IF EMISSION PROBLEMS


Its generally a Catalytic Converter. Get a cheap one and get your emission passed. I've replaced everything, tuned everything, done everything, tried every trick...When I gave up and had a $100 Cat put on, It set a record for the cleanest emissions ever. Go figure.

Aug 18, 2010 | 2001 Chevrolet Blazer

1 Answer

Engine light on-trouble code P0452


EVAP fuel tank pressure sensor low output. It sounds like the charcoal -filled canister, it's near the gas tank in a cylinder shape.The canister may have cracks or a hose is leaking around the area and it will give a fault code of PO452. Are you smelling any odors or emission smell from the car?

Feb 26, 2010 | 2002 Ford Expedition

1 Answer

Having the same problem the other guy described.


First of all, these codes are what are called "Powertrain Trouble Codes' (that's what the "P" means P=Powertrain). TCM Request (Transmission Control Module = TCM). The request was to turn on the 'Check Engine" light.
P0720 - output speed sensor circuit malfunction
P0715 - Input speed sensor (turbin speed) circuit malfunction
P0442 - Evaporative Emission System Leak (Small Leak)
P0455 - Evaporative Emission System Leak (Large Leak)
Check fuel filler cap problems - for Evap Emiss leaks
Replace the pulse generators & have the trans fluid replaced/flushed.
The Main Catalyst System Efficiency Bank 1 Is P0420, not P0442
If you had P0420 code, the catalytic converter is shot... and that's an expensive component.

Oct 06, 2009 | 2001 Hyundai Elantra

1 Answer

Emission system problem


fill your muffler with SOS pads just before your test a wire coat hanger can remove them after the fact..
good luck its how i got my prelude to pass inspection in vancouver bc canada

Jan 16, 2009 | 1998 Ford Expedition

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