EMISSION

We Replaced The Egr Valve. The Diagnostic Test Auto Zone Said That Is What It Was. Now It Will Not Start. Turns Over Really Good And...

New Gas Cap, Checked Purge Valve, And Checked Good Since Cover Was Off But New In. Went 2 Vent Valve Checked Good Could Blow Through...

I Have Taken My Truck 4 Times And Can Not Pass Emission Test. I Am Being Told That The Hc, And Nox Is High. So I Dont Know What To Do

My 1985 Lebaron, 2.2l 4cyl (efi) Will Not Pass Emissions Testing Because It Will Not Idle Below 1800 Rpm. I Am Tolfd That It Is The Idle...

Got It Diagnosed Today, Guy Said I Needed An O2 Sensor Replace, And New Catalytic Converter. I Got Them Both Today, Got It Tested, And...

Chilton's Book Says It's In The Oil Separator(?) On The Left Side Of The Engine.I Can't Find That Oil Separator. Can You Help Me...

Whenever We Get Gas On The 2002 Taurus, And Put The Car In The Garage, An Unbelievable Stench Of Gas Fills The Garage And The Floors Above...

My Car Will Not Pass Smog. Diagnostics On It, Does Not Show Anything Wrong With The Motor. The Tech Guy, Told Me To Drive It For 30 Miles...

Check Engine Light Has Codes P0102 & P0402 I Was Instructed That I Need To Replace The Egr Valve Or Clean - So I Used The Spray And No...

How Do You Change The Egr Valve On My Accord And How Do You Turn Off The Maintenance Light?