Questions & Answers for: Mercury Cougar fix failed smog test

...failed smog check'' I need to know what these fault codes mean: p1744 p1131 p1151 and air conditioning electrical diagram ...

my car didn't pass the test only-smog because of p1443 error code. It is a vapor control system code. Replace the complete evap purge valve and sensor assembly.

my 95 cougar(beast)as i call it.will not pass smog.had codes tested and it comes up as (code)0173&0174,bank 1&2?please help? you sure it's bank 1 and 2 ? they are both for bank 2. either way ...

test and the tools and chemicl can be purchaed at any parts house.. Of if you can drive to a smog machine they can sniff the vapors when the cooalant cap is removed. Ifany gasoline is present it means

...failed smog? Lack of HO2S-21 Switch, Sensor Indicates Lean A Heated Exhaust Oxygen (HO2S) sensor indicating lean at the end of a test is trying to correct for an over-rich condition. The test fails ...

...test ASAP. How can i reset my engine light? WITHOUT having something repaired 1995 Mercury Cougar v8 disconnecting your battery for about 10 minutes will clear the codes but if it comes back youll ...

...smog test went to have car smog check done and guy said shaking caused machine to abort test at high rpms he said the rear shakes excessively at high rpms. i never have problems while driving. what ...

smog test done. technician said excessive shaking during high rpms caused smog machine to abort smog test. he said excessive shaking in rear. dont shake while driving. what could be causing this motor

...smog test code 1131 came back. he replaced frontstream o@ sensor. went to another shop. failed again. stated sensor mounted in wron place. they fixed it. how can i pull codes myself without scanner. ...

obd connector integrity fail...no voltage fail emissions testing.how to I fix this problem If there is no voltage to the on board diagnostics interface check that the fuse is not blown That, I am ...