Question about 2003 Chevrolet Blazer

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Most chain store auto parts places or Midas muffler will clear the codes for you, no charge. Just make it sound like that you will do business with them when it comes time to get it fixed.

Posted on Sep 03, 2010

  • wraymon1975 Sep 03, 2010


  • Garrett Sep 03, 2010

    They can clear them with the code reader. Some vehicles will clear if the battery is disconnected for an hour or so but I don't recommend this because it can cause problems with things like an anti theft radio.



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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: po773 code on 1997 camry emissions will not clear

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Posted on Jul 30, 2009

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SOURCE: My alero's been fix but

Try resetting it by disconnecting the positive cable from the battery for 5 mins. Or take it to a Franchised auto parts shop they do it for free using the testor

Posted on Sep 16, 2010

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What does code dtc3 fail mean on my emissions test,,97 nissan pathfinder

I means that the vehicle failed it's emissions test as it failed the digital trouble code reading test 3
the testing station tests the exhaust emissions and the onboard computer
Your computer failed the test

May 16, 2017 | Nissan Cars & Trucks

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What are the drive cycle steps to reset the system so we can get an emissions test done?

Sometimes it's not just one sensor that is faulty or worn and won't activate the engine light until one sensor is replaced to clear the light. Some vehicles have more than one sensor( such as 2 or 3 catalytic converters could have an oxygen sensor for each converter). I would have the dealership do another scan to locate which sensor is activating the check engine light (CEL.) I imagine they warranty their work for the initial work done recently if that's the problem. Most auto part stores will run a scan for free to detect what part (sensor) is engaging the light.

Apr 09, 2016 | 2006 Suzuki Verona

1 Answer

Can u reset the check engine other than using a meter?

There are many folks here who will tell you how to do it without using a code reader. It may work or it may not. Be advised though, if you don't use a code reader and you try to do it by the battery disconnect method, you could wind up with a security lock on the radio. Also, trying to clear the Check Engine light just before emissions testing may result in the emissions testing station getting a "not ready" indication from your OBDII system when you attempt the test. This will result in a rejection and requirement to retest. The OBDII system must run for a certain period of cycles after it is reset before it will clear the "not ready" indication. This is to prevent emissions test cheats.

Mar 16, 2015 | 2008 Suzuki XL7

1 Answer

Did not pass emissions test for hydrocarbons

When was You're last Tune up?
Check the Spark Plugs to make sure the Gap is correct. HC is unburned fuel ,Check the Air filter and Replace as necessary,If coil over plugs Make sure to replace the Boots on the coils as they have a tendency to Bleed and wont show a trouble code.otherwise Change the Spark Plug Wires this should Clear You're Problem

Dec 31, 2014 | GMC Cars & Trucks

1 Answer

1997 Chev Silverado with 5.7 Litre Vortec V8 failed OBD smog test

You are not clear on what your asking. Please some more INFO.

Sep 15, 2014 | Cars & Trucks

1 Answer

Check engine lite on .pull codes p404. Also has lite miss on easy acceleration from stop.Need to pass state emissions test

P0404 EGR circuit range just replace the EGR,the light miss is from your egr pintle being stuck open. either you clear the code with a scan tool or if you dont have one it will take 2 trip of no emission problem for the ECM to clear the check engine light,

May 05, 2011 | Chevrolet 1500 Cars & Trucks

1 Answer

97 eagle talon fails state emissions test with

It sounds like the downstream O2 sensor may be going bad, as it is the sensor that checks the cat for proper operation, and throws a code if a fault is detected.

I’m happy to help further over the phone at

Oct 08, 2009 | 1997 Eagle Talon

1 Answer


First of all very nice car.your going to have to take it to MR.MB.sorry but at least you do not need them to install that air pump .Your mechanic did that for u and saved u a ton of money.And MR.MB dosnt like that .so they make sure they are the only ones who can reset that .p.s the light has to be out for more then 50 pass emissions if that helps you

Feb 28, 2009 | 1999 Mercedes-Benz E-Class

1 Answer

Pcm not ready to test 1997 chevy blazer

what DTC, and what monitors didn't pass? Drive cycling untill they clear or the code comes up is the only answer. Have you had a CEL or ran the battery dead lately?

Sep 25, 2008 | 1997 Chevrolet Blazer

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