Question about 1998 Toyota Corolla

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My 98 corolla failed the smog test because of something to do with the idle being too high when in park. It was at apprx 1268rpms and should be at apprx 700 or 800rpms...what should I do?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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

SOURCE: HELP MY OLDSMOBILE FAILED TEST ONLY SMOG

CHECK AND CLEAN I.A.C SENSIOR

Posted on Jun 12, 2008

justuscc
  • 360 Answers

SOURCE: CHEVY SUBURBAN FAILED SMOG BECAUSE OF HIGH NOX VALUES.

nox is from running lean..... its realy high temps that cause this.......... replace the o2 sensors this should cure that any more help let me know

Posted on Oct 24, 2008

  • 1596 Answers

SOURCE: My 1981 Toyota Corolla won't

A Vehicle This Old Must have Very High Millage, And it is Possible that there is NORMAL wear that has taken place that Unfortunatly ONLY a NEW or Newer Engine Will solve this Problem. IF ALL OTHER OPTIONS IN REPAIR HAVE BEEN EXHAUSTED--Such as Major tune up Valve adjustment - Emision system inspected and CLEARED of Defects , The Only FIX is A New Engine. As Part of my Job for some 25 + years I Have had to be the Bearer of BAD NEWS such as this, Good Luck 1981 toy Cor Millage is????

Posted on Jan 13, 2009

  • 290 Answers

SOURCE: Failed Smog test because of ignition timing

16 Degrees if you have the 1.8L PFI DOHC 4cyl

Posted on Mar 24, 2009

  • 714 Answers

SOURCE: My 1999 toyota corolla check engine is on for a

A code P0441 could mean one or more of the following has happened:

  • Bad vacuum switch
  • Broken or damaged EVAP line or canister
  • Open in PCM purge command circuit
  • Open or short in Voltage feed circuit to Purge Solenoid
  • Faulty purge solenoid
  • Restriction in EVAP solenoid, line or canister
  • Corrosion or resistance in purge connector
  • Bad PCM Evaporative Emission Control System Incorrect Purge Flow
    What does that mean? This indicates that a part of the EVAP control system is no longer fuctioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister
    , purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.
    EVAP emission canister purge is contolled by a valve which allows engine vacuum to pull stored fuel vapors from fuel tank
    into the engine to be burned, rather than be vented to atmosphere. A vacuum switch is used to detect when flow exists. If the PCM commands purge and sees that the switch is closed (indicating no detected purge flow) P0441 is set.

Posted on Jan 29, 2010

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I I I took my 1997 To I took my 1997 TOYOTA Corolla to get it smog and this Is the first time it failed idle speed to high 1400 rpm said I need to take it and have it turn down to 700rpm


Idle speed on most later model cars is automatically controlled by the on-board computer. If the idle is too fast, it is usually due to an intake leak somewhere on the engine, or a malfunctioning sensor. Either can cause this result. There is no "adjustment" to be done, but once the source of the problem that is resulting in the fast idle is corrected, it should return to normal.

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I have 1994 chevy 1500 it failed smog at idle . the hc ppm was100 max and i was putting out 848 what should i do. the high idle test at passed fine max is1.0 and i was.95


May not be much you can do yourself without a scanner and an exhaust gas analyzer.
High HC is too much fuel. So it could be a leaking injector, O2 sensor, air flow problem, or something else.
It could also be not up to normal operating temp due to an open thermostat.
Without the proper equipment you really have no way of knowing whats coming out the tailpipe.

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Smog test: fuel evaporative controls functional...failed


Your mechanic will know. Eva= evap system, usually a vacuum leak somewhere. Vacuum leaks will also affect idle.

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1989 cheverolet s 10 pick up 4.3 litre v-6, failed smog hc too high


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No the water pump will not affect the smog test. You probably failed the idle?
Usually with this age of vehicle you can replace the o2 (oxygen) sensor and it will pass. Cleaning the MAF if it has one cant hurt either if you do it right.

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Make sure all your tuneup stuff is good, plugs,wires, air filter. If the O2 senser is old it can be Lazy. Make sure the oil is changed before going for test. Make sure its good and warmed up as well. Good luck

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High hc


you may need replace the catalytic converter, but 1st do this, clean the throttle body and idle airbypass valve, change the oil before the retest as well, get it as hot as you can before the test, hold it at a high idle prior to the test, this may squeak you by, as a 20 year smog tech these are the thing I did, if all else fails do the cat conv.

Oct 08, 2008 | 1997 Toyota RAV4

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Hi, my car today failed in smock check,the emissions test fail, and I don't know how to read de results, can you help me to read and fixed the problem?


Go to AutoZone or Kragen and get a $9.00 bottle of PASS ANY SMOG TEST or double
your money back (keep your receipt). You just pour it into your gas tank at a FILL UP and run
that gas down then refill your tank and take your Smog Test. It will pass. What state are you in??
What are your smog test numbers??
MikNas in California

Aug 14, 2008 | 1989 Toyota Corolla 2 Door

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