I have a catalytic monitor incomplete and it won't pass the smog check there are no trouble codes it is a toyota camry le 1997


Asked by Jun 03, 2015 at 06:31 PM about the 1997 Toyota Camry LE

Question type: Maintenance & Repair

I have a check engine light on befor and I
have fixing all the problem and the light off
now but the smog test still fails.

16 Answers

What part failed? Is it Calif? If so it will be specific. What would be great is if you can scan the test results and post them. NoX, CO, hydrocarbons etc....?

1 people found this helpful.

Ya California catalyst monitor and evap not ready

22 people found this helpful.

Catalyst not ready and evap not ready

18 people found this helpful.

Sounds like all of the "monitors" in the computer have not run to completion. Try driving the vehicle around for a few days and if the CEL does NOT come on ...take it for that Smog Test. If the light DOES come back on...you need a diagnosis and repair of a emission control device.

2 people found this helpful.

That above is a good point. Like a heated 02 sensor is not heating. Now EVAP not ready...not ready for what? that I don't get... unless it means it's not getting a signal..not a fault just no indication either way. But just like Lastchancegarage says.... it takes a while. Disconnect battery for about 10 minutes, and drive for as much as possible, the ECU will either re-learn or go to factory default. When I bought a new battery for my Corolla it ran like crap for about 5 miles, then purrs like it does now. But sometimes it takes longer. Much longer. Did the smog guy get that from an OBDII scan? If so exactly whet codes?

1 people found this helpful.

I read your question again..sorry..I see no codes there.


9 people found this helpful.

I put that separate to make it easy to link. You gotta see THAT ONE above it shows special specific drive patterns...warm up..miles to drive..idle...drive again..idle...IMPORTANT and may be the key to the whole thing

2 people found this helpful.

Preconditions The monitor will not run unless: MIL is OFF. ECT (Coolant Temp) is 176 F (80 C) or greater. IAT (Intake Air) is 14 F (–10 C) or greater

2 people found this helpful.

Your smog shop may not know what they are doing...if they don't follow those -- from Toyota -- to a tee

2 people found this helpful.

http://www.justanswer.com/toyota/5c4es-toyota-camry-can-t-evap-catalyst-monitors-reset.html ----- What you are wanting to accomplish is not to have the monitors reset but rather you want the Evap and Catalyst monitors to 'Run' and give a judgment as to whether they pass or fail. This can be a tricky process but the instructions are laid out in the Toyota Repair manual on pages 05-20 for the 4 cylinder 2AZ engine and on page 05-475 for the 6cylinder 1MZ/3MZ engine. What the Technician needs to do is drive the vehicle in the prescribed pattern laid out in the manual and the computer will then run the monitor and render judgment. ****!!*** If they do not perform the drive cycle just as the repair manual lays out, the computer will not run the monitor and will not render a judgment.

4 people found this helpful.

Gas tank must be between ½ and ¾ full. NO more No less

The monitor will not run because the difference between ECT (Coolant Temp) and IAT (Intake Air) is greater than 13 F (7 C

5 people found this helpful.

Thank you I will try this and let you know

Just run your car till the the obd monitor ready mine toyota camry 2000 4cyl it take 450 mile befoe the monitor become ready

I have a 2004 Sienna van with the same problem - Catalyst and Evap System monitors are not resetting and mechanic cannot determine the cause & won't pass inspection. I have an OBDII unit and run Car Doctor which tells me the same info as mechanic - 2 monitors "N/A". I've driven 600+ miles with still no cleared monitors and the mechanic drove his "drive cycle" as well with no luck. I'm going to try one more time before donating the car - will hate to give it up but have no choice.

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