O/R H-pipe installed. No CEL?!?!?!?!

LucasMelo

New Member

Feb 9, 2002

34

0

0

Miami, FL

May 21, 2007

#1

• May 21, 2007

• #1

Hey guys....
Had a shop install a O/R H-pipe last friday, Car sound awesome!!!
If you have not done it, DO IT NOW!!!!
Question is.... I do not have a CEL light!?!?
Already drove the car for almost 100 miles....
I bought the car in January. It's a 2001 Bullitt and the owner said that the car was bone stock. (looks bone stock).
How can I tell if my car has been tunned ???(CEL turned off)
The bulb is working because it lights up when I start the car.
What else could it be?????

Thanks....

 

R

RoadconeTuning

New Member

Apr 4, 2006

458

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Upstate, SC

May 21, 2007

#2

• May 21, 2007

• #2

took mine 174 miles to come on with an offroad prochamber, it WILL come on, just give it time.

 

lvmustanggt

New Member

Apr 9, 2006

721

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0

Las Vegas

May 21, 2007

#3

• May 21, 2007

• #3

don't worry it will come on. I had to use MIL Eliminators.

 

mustangman9812

10 Year Member

Jan 14, 2004

661

6

49

Mars Hill, NC

May 21, 2007

#4

• May 21, 2007

• #4

must be a 99-up thing. When I put my O/R X-Pipe on my car it never came on

 

timeless2

Vi Veri Veni Versum Vicus Vici

Admin Dude

Nov 29, 1999

1,366

202

154

the Shadow Gallery

May 21, 2007

#5

• May 21, 2007

• #5

Did you reset the PCM after the install?

 

mustangman9812

10 Year Member

Jan 14, 2004

661

6

49

Mars Hill, NC

May 21, 2007

#6

• May 21, 2007

• #6

me? Yes, and its been on my car for 8 months now LOL

 

T

thomas91169

I'd donkey punch my sister.

Aug 19, 2005

0

0

0

Modesto, CA

May 21, 2007

#7

• May 21, 2007

• #7

it all depends on alot of variables for the CEL to go off. It goes off because the rear/downstream o2's main (and only function) is to make sure the catalytics are still working, the ecu does this by cross referencing the data with the front o2's, if its far off the ecu knows they are working, if the numbers are the same then the ecu knows the cats are not working. MIL's work by faking the correct voltage the ecu needs to see to realize the cats are still in place.

i got a CEL as soon as i turned my car on, even with MIL's in place. i had to disable the rear o2's in the tune (DiabloPredator) and disable all the obdII checks for the rear o2's.

 

mustangman9812

10 Year Member

Jan 14, 2004

661

6

49

Mars Hill, NC

May 21, 2007

#8

• May 21, 2007

• #8

i guess it all depends on the car LOL

 

B

Black'02

Member

Mar 5, 2006

100

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Rochester, NY

May 21, 2007

#9

• May 21, 2007

• #9

Has the 100 miles you drove so far been a bunch of short trips? If so the computer may just be attributing the emissions to the cats not being warmed up yet. Im sure if you keep driving the car the light will eventually come on.

 

Twista

Active Member

May 7, 2004

510

2

29

@ the z00 in chicago

May 21, 2007

#10

• May 21, 2007

• #10

it takes awhile for mine to come up. Just drive it hard and rev it high.. thatll make it come on super quick.

 

LucasMelo

New Member

Feb 9, 2002

34

0

0

Miami, FL

May 21, 2007

#11

• May 21, 2007

• #11

They were short and long trips..... It's my DD.
And I did ran the bullitt at WOT!!!!! (More than a couple of times..... heheh )
I'll reset the "computer" now and see what happens.
So, there is no way to know if the car has a tune????

Thanks guys....

 

Twista

Active Member

May 7, 2004

510

2

29

@ the z00 in chicago

May 21, 2007

#12

• May 21, 2007

• #12

;] Just keep driving. Itll come on sooner or later. I just unplug my negative battery whenever it comes on.

 

bonestock87

Founding Member

Dec 19, 2001

732

12

38

Cape Coral, FL

May 21, 2007

#13

• May 21, 2007

• #13

As black-02 states, a bunch of short trips over several days will keep it from coming on. Installed mine a few months back and it took over a week before it came on. Then it finally did. Got the MIL eliminators and no CEL since.