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Joined: Feb 2001
Posts: 750
Veteran CEG\'er
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Veteran CEG\'er
Joined: Feb 2001
Posts: 750 |
Originally posted by HITMANinMI:
If you need to repalce the pre-cat it will cost you a ton. If that turns out to be your problem, install MIL eliminators. they make the computer think the cat is working fine so the check engine light wont come on.
I think if you're giving advices like that you should also inform him that doing this is against federal law...
On the other hand, running with plugged exhausts/cats will damage the car on the long run and no MIL eliminator will save you from that.
Tiv
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Joined: Apr 2004
Posts: 59
CEG\'er
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CEG\'er
Joined: Apr 2004
Posts: 59 |
check with a reputable ford dealer. last I heard they were having a recall for the cats going bad. beyond the 80k emissions warranty.
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Joined: Jun 2003
Posts: 3
Newbie
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Newbie
Joined: Jun 2003
Posts: 3 |
this my be a dumm question but what is mil eliminators?
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Joined: Sep 2003
Posts: 2,725
Hard-core CEG\'er
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Hard-core CEG\'er
Joined: Sep 2003
Posts: 2,725 |
Originally posted by Blancas2020:
this my be a dumm question but what is mil eliminators?
Not dumb at all. I guess I should spelled it out for those who dont know. MIL = Malfunction Indicator Light, which is basically the check engine light. Anyways MIL eliminators you place after I think, it may be before, the downstream O2 sensor if your cat goes bad. This makes the computer think the cat is working correctly so you dont get a check engine light. So MIL eliminators eliminate the check engine light.
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Joined: Apr 2004
Posts: 4
Newbie
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OP
Newbie
Joined: Apr 2004
Posts: 4 |
OK, been to the dealership and...source of the code was unable to be discovered. Per the service advisor, if the cats were bad, I should be seeing driveability problems (I am not). Oxy sensors were monitored and checked out OK. Since they were unable to successfully diagnose the problem, they discounted the $69 "check engine light diagnosis" to $59. Stay tuned.
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Joined: Sep 2003
Posts: 2,725
Hard-core CEG\'er
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Hard-core CEG\'er
Joined: Sep 2003
Posts: 2,725 |
Originally posted by Tom501:
OK, been to the dealership and...source of the code was unable to be discovered. Per the service advisor, if the cats were bad, I should be seeing driveability problems (I am not). Oxy sensors were monitored and checked out OK. Since they were unable to successfully diagnose the problem, they discounted the $69 "check engine light diagnosis" to $59. Stay tuned.
No you dont notice any driveability probelms if your cats are bad I believe.
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Joined: May 2000
Posts: 3,290
Hard-core CEG\'er
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Hard-core CEG\'er
Joined: May 2000
Posts: 3,290 |
Originally posted by HITMANinMI:
No you dont notice any driveability probelms if your cats are bad I believe.
Correct AFAIK... a cat can be operating below spec and still not cause driveability issues. But if you let it go and pretend the problem doesn't exist, it eventually will.
E0 #36
'95 Ranger
'82 Honda CX500
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Joined: Feb 2004
Posts: 13
New CEG\'er
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New CEG\'er
Joined: Feb 2004
Posts: 13 |
I took my car to autozone when the CEL came on and I got the same code you have. I called my mechanic and he told me to ignore it because many times it is a fluke. That was 3 weeks ago, the light is still on but the car is running OK. Until this morning...but my new problem is seemingly unrelated. I am going to do some intake cleaning this weekend and see if that does the trick...if not I may try the gutting suggestions since I live in the boonedocks where no-ones car could meet emissions!
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Joined: Nov 2003
Posts: 3,115
Hard-core CEG\'er
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Hard-core CEG\'er
Joined: Nov 2003
Posts: 3,115 |
My CSVT is throwing a P0420 code as well and say "catalyst efficiency below threshold." My car only has 45k and the service tech at the Ford dealership told me that it is probably a bad precat and is covered by the 8/80,000 emission warranty. My car runs fine, except I think the fuel pump is also going out because it bucks at 5,000 rpms when I only have 1/4 tank or less.
"Eagles may soar high, but weasels don't get sucked into jet engines."
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Joined: May 2000
Posts: 46
New CEG\'er
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New CEG\'er
Joined: May 2000
Posts: 46 |
I'm pretty sure this link has been pasted before, but it does a great job of explaining things. http://www.fordscorpio.co.uk/catmonitor.htm
2000 CSVT (#289 of 2150)
1989 Mustang GT
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