Posted by: Jose
Code PO420 - 08/03/05 07:42 PM
That code is on right now, its says catalyst insuficent flow beyond treshhold, something like that what could it be?
Posted by: snowcrash
Re: Code PO420 - 08/03/05 08:15 PM
not really sure, but by you saying catalyst, it kinda makes me believe that it is the rear o2 sensor. other than that, i don't know!
Posted by: Jose
Re: Code PO420 - 08/03/05 08:41 PM
i changed that sensor not to long ago.
Posted by: Jose
Re: Code PO420 - 08/03/05 10:59 PM
how many oxygen sensors do our cars have?
Posted by: AustinGTP
Re: Code PO420 - 08/03/05 11:08 PM
2, one at the U-bend to register a cat. The other is at the top of the D/P, right next to the rear spark plug on the drivers side.
Posted by: Jose
Re: Code PO420 - 08/03/05 11:11 PM
thats what i thought, the mechanic said ut could have four and i was like no only 2, he kept insisting so i just shut my mouth