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

100,675

That means that your catalytic converter has worn out.

Service Engine Soon~

21,325

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 of 2 people found this helpful.
45

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

1 of 1 people found this helpful.

7jimmy7 always astonishes, just like his genie icon~

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

45

burn baby burn

1 of 1 people found this helpful.
21,325

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 of 1 people found this helpful.
45

wow.

1 of 1 people found this 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 of 1 people found this helpful.
100,675

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

Best Answer Mark helpful
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?

21,325

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

Your Answer

Mustang

Looking for a Used Mustang in your area?

CarGurus has 38,301 nationwide Mustang listings starting at $895.

ZIP:

Ford Mustang Experts

  • #1
    Tom Demyan
    Reputation
    4,590
  • #2
    Bob Beaman
    Reputation
    1,260
  • #3
    COMETGUY61
    Reputation
    1,110
View All

Related Models For Sale

Used Chevrolet Camaro
410 Great Deals out of 30,658 listings starting at $3,550
Used Chevrolet Corvette
276 Great Deals out of 20,688 listings starting at $2,990
Used Ford Mustang SVT Cobra
8 Great Deals out of 285 listings starting at $4,800
Used Ford F-150
2,314 Great Deals out of 182,094 listings starting at $1,000
Used BMW 3 Series
1,143 Great Deals out of 33,037 listings starting at $1,000
Used Jeep Wrangler
293 Great Deals out of 16,176 listings starting at $2,500
Used Chevrolet Silverado 1500
2,142 Great Deals out of 167,073 listings starting at $1,498
Used BMW M3
46 Great Deals out of 1,758 listings starting at $5,995
Used Honda Civic
825 Great Deals out of 72,772 listings starting at $1,000

Used Cars For Sale

2017 Ford Mustang GT Premium Convertible For Sale
1,077 listings starting at $28,999
2016 Ford Mustang GT Premium Convertible For Sale
3 Great Deals out of 216 listings starting at $23,980
2015 Ford Mustang GT Premium Convertible For Sale
112 listings starting at $22,964

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.