Engine light if i take off cats?? - Mustang Evolution

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Old 08-14-2012, 07:48 PM   #1
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Engine light if i take off cats??

95 mustang gt does not need to pass emissions in massachusetts however if a dash light is on it is automatic fail. If I take my cats off will check engine light come on? Pre- obd II
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Old 08-14-2012, 07:53 PM   #2
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Re: Engine light if i take off cats??

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95 mustang gt does not need to pass emissions in massachusetts however if a dash light is on it is automatic fail. If I take my cats off will check engine light come on? Pre- obd II
If it doesnt have the o2 after the cat you should be fine..Which is pre obd2..How is it automatic fail if you dont need emmision??
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Old 08-14-2012, 07:55 PM   #3
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If any dash lights are on they fail you, for instance my airbag light comes on flashes a code 12 means system ok. Big red R didn't help that the day I got my sticker a state inspector was their
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Old 08-14-2012, 08:03 PM   #4
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Quote:
Originally Posted by mymustang

If it doesnt have the o2 after the cat you should be fine..Which is pre obd2..How is it automatic fail if you dont need emmision??
Kinda my thinking....,of you don't have to pass emissions why do you have to take the test and get a sticker? :confused;
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Old 08-14-2012, 08:09 PM   #5
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Emission test is not required on earlier then 1996 vehicles but everything else is required on every car unless the factory didn't produce a specific function like no seatbelts etc.
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Old 08-14-2012, 08:18 PM   #6
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Just pull the cel light out for the test
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Old 08-14-2012, 08:28 PM   #7
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That was another thought going to have to research where that is

---------- Post added at 08:28 PM ---------- Previous post was at 08:25 PM ----------

You mean the dash light got ya
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Old 08-15-2012, 05:40 PM   #8
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Re: Engine light if i take off cats??

They will need to see the light come on when they turn the key.
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Old 08-15-2012, 06:40 PM   #9
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It should still pass with the cel on according to their own site. The only way they would possibly fail you is if they look under the car and don't see the cats.
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Old 08-15-2012, 07:41 PM   #10
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light won't come on, took mine off on 95 cobra no light, since there are no sensors post cats
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Old 08-16-2012, 12:25 PM   #11
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From what I hear obd I mustangs don't have post cat o2s thank you guys
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Old 08-16-2012, 08:54 PM   #12
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I also live in mass and the law is any car before 1997 does not have to pass emmission test but can not have smoke coming from tailpipes (good oil change) and must pass safty and visual inspection and iam getting and h pipe put on monday and hopefully will still pass (also have the air bag light) there are some tunes that can make your o2 censors to stop throwing the code.
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Old 08-18-2012, 12:01 PM   #13
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Quote:
Originally Posted by Adogg
I also live in mass and the law is any car before 1997 does not have to pass emmission test but can not have smoke coming from tailpipes (good oil change) and must pass safty and visual inspection and iam getting and h pipe put on monday and hopefully will still pass (also have the air bag light) there are some tunes that can make your o2 censors to stop throwing the code.
I talked to my mechanic and obd II cars throw a light code so you should get your sticker then take them off until you figure out how to shut the check engine light off. The only light you can have on at a MA inspection is abs and probably (battery light)
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Old 08-20-2012, 09:11 PM   #14
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Quote:
Originally Posted by Dtibbz22

I talked to my mechanic and obd II cars throw a light code so you should get your sticker then take them off until you figure out how to shut the check engine light off. The only light you can have on at a MA inspection is abs and probably (battery light)
I got my h pipe on there today and it has not thrown any codes yet i have a 94 gt (obd1)
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Old 08-20-2012, 09:23 PM   #15
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wat does obd mean
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Old 08-20-2012, 09:30 PM   #16
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wat does obd mean
On board diagnostics it is the way u can scan your car for codes
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Old 08-20-2012, 09:31 PM   #17
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ohhhh ok my engine light is also on but it runs great
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Old 08-20-2012, 09:32 PM   #18
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Originally Posted by Robbiemustang96
ohhhh ok my engine light is also on but it runs great
Well some times your ecu can store codes you can reset ue ecu and see if it come back
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Old 08-20-2012, 09:34 PM   #19
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how do you reset it disconnect the negative side of the battery? for how long
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Old 08-20-2012, 09:45 PM   #20
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Originally Posted by Robbiemustang96
how do you reset it disconnect the negative side of the battery? for how long
Yes i would leave it off for like 10-30 if u have nothing to do i would say 30
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Old 08-20-2012, 09:47 PM   #21
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Quote:
Originally Posted by Adogg

Yes i would leave it off for like 10-30 if u have nothing to do i would say 30
minutes? does it take that long well i guess it isnt a phone haha ok i can try that on saturday
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Old 08-20-2012, 09:50 PM   #22
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Originally Posted by Robbiemustang96

minutes? does it take that long well i guess it isnt a phone haha ok i can try that on saturday
Just to let you after you do it your engine will go through a re learning process might run wierd but will fix it self and then will run better then ever
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Old 08-20-2012, 09:56 PM   #23
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like how crappy and how long will it take to relearn
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Old 08-20-2012, 09:59 PM   #24
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Originally Posted by Robbiemustang96
like how crappy and how long will it take to relearn
It wont run crappy just wierd you wont notice it that bad and you should drive it for around 10 miles and it will relearn
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Old 08-20-2012, 10:02 PM   #25
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ok
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Old 08-20-2012, 10:26 PM   #26
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I just bought a 02 and the light came on after about a day of driving. I took it back and the guy cleared the code, but it came back on. So I had a friend check the code. And I then learned the cats were removed. Then I discovered Plug-In MIL Eliminators from AM. Just 69.99. It clears the codes and keeps it off OBD II stangs. I ordered them today. Just waiting for them to arrive. I'll tell you all about them in a few days.
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