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Yes. Any faulty emissions control sensor, including knock sensors, will result in an automatic fail of any emissions control test, period. It doesn't even matter if your vehicle's actual exhaust emissions are within acceptable limits. In most cases, once it is determined that a sensor is bad, the test is ended immediately, and considered failed.
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Would someone help with 99 accord that keeps failing smog due to the MIL light The OBD codes that came up were P1164 P1149 P0401. Ive already spent 400 on a knock sensor and cleaning intake manifold?
P0401 EGR Insufficient Flow Detected P1149 Primary HO2S (Sensor 1) Circuit Range/Performance Problem P1164 61 Primary HO2S (No. 1) Circuit Range/Performance The 0401 = bad EGR valve The 1149 = bad O2 sensor, up front The 1164 = bad O2 sensor, up front
Is there another name for a pollution pump from a 1998 Ford Taurus Could this pump cause the check engine light to come on?
another name is smog pump.this could cause light to come on.
What gases are the sources of smog?
Sulfur dioxide is main source of gas in smog.
What is smog pump pressure psi?
30-40 psi
What do you call a dirty haze that forms when air pollution combines with moisture in the air?
That wet, dirty haze is called smog. It comes from combining the words smoke and fog.
Your 98 Chevy s10 fails smog test have replaced everything but egr valve and oxygen sensor what else can you do?
A faulty EGR valve can cause a 98 Chevy to fail a smog test. The oxygen sensors should also be tested as they can also cause a 98 Chevy to fail a smog test.
Will a bad egr cause smog test fail?
yes it suppose to circulate the smoke if clogged smog test will fail
When should the oxygen sensor be changed on a Grand Am?
Every 60,000 miles, though some can last longer before failing enough to cause you to fail smog.
Can a crankshaft sensor cause a failure to pass smog test?
Probably not as the emissions test (Smog test) is carried out by inserting a sensor into the exhaust pipe.
Will a bad catalytic converter cause you to fail the emissions portion of the smog test?
Yes!
What can cause a 1999 Saturn SC2 to fail the smog test after the battery was replaced?
Have it scanned to determine problem
Will a vehicle pass smog if the o2 sensor is out?
No, it will not pass the smog test with a defective or removed O2 sensor.
How do you test a 1999 daewoo nubira oxygen sensor when the car goes for the smog test it says obd2 fail?
obd2 means on board diagnostics failed not o2 sensor, 1st have to figure out why obd2 failed.
What can make a car not pass a smog check?
The answer to this question is fairly complex. We recommend you visit the link below to find out how to pass the smog check and what might cause your vehicle to fail... http://www.smogtips.com/passing_inspection.cfm
My 97 ram 1500 reads error code 441 evaporative canister will this cause it to fail the smog test?
It depends on where you live. If you live in a state that requires smog tests, yes, it will cause the vehicle to fail. The test includes verification of the status of the emissions diagnostic codes. In other words, if your car throws a code it won't pass.
What can cause a 1995 Honda civic to fail smog replaced catalytic converter o2 sensor and had a tune up done.?
If the vehicle has excessive miles it may be burning oil, If you are sure it is in OK condition to pass the test, Try this, drive the vehicle at highway speed for atleast 10 miles, this will get the emissions system up to full operating condition, and make it reduce smog at its max.
Will a missfire cause your car to fail the smog check?
I'm not sure what is checked during a smog check. In the UK we have an emissions test. If the vehicle (petrol engined) has a miss fire it will bring the carbon monoxide level down. But in doing so The hydrocarbon level will rise. That will cause a test failure
