my 2001 mustang gt serv.eng.soon is on.diagnostics say catalyst syst.efficiency below threshhold.[bank 2]???

45

Asked by Apr 10, 2013 at 08:55 PM about the 2001 Ford Mustang GT Premium Convertible

Question type: Maintenance & Repair

my 2001 mustang[4.6L] gt serv.eng.soon is on.diagnostics say catalyst syst.efficiency below threshhold.[bank
2]???

14 Answers

89,705

That means that your catalytic converter has worn out.

Service Engine Soon~

18,485

or sensor failing ,bank 2 sensor 2. burn a long hill wide open at lower gear restrain with brake up hill , light that catalyst up its self cleaning like a sears oven! avoid other traffic

2 out of 2 people think this is helpful.
45

R U serious?Going to give it a whirl.Hope this works.Thanks.

1 out of 1 people think this is helpful.

7jimmy7 always astonishes, just like his genie icon~

so cook it clean...wow, certainly an unconventional approach~

45

burn baby burn

1 out of 1 people think this is helpful.
18,485

you know thems acleaning when your behind one on a long hill that someone hasn't powered up for a while, smells like burnt hair ,feathers .ugg! choking !

1 out of 1 people think this is helpful.
45

wow.

1 out of 1 people think this is helpful.

let me get this straight, brake and gas at the same time? is that what we're about to do here? goose is cooked!~

45

high speed power brake.honk honk!

1 out of 1 people think this is helpful.
89,705

Or you put a motorcycle spark plug extender on the bung and move the sensor back out of the stream.

Best Answer
45

prob.just going to put dual bypass on[no em test here]&call it a day.wonder if this will still cause light to come on?

18,485

after bypass,light will come on unless front 02s are tapped in and if rear sensor equipped must hang in air,maby slight resistance added to rear if not yet code clear

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