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Old 01-05-2023 | 07:23 PM
  #11  
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Originally Posted by greg8453
What does the scan tool show? Does it connect? Does it find all the modules?
The way it's running the CEL should be on.
Light is on
​​Been on for about 6 years from the hollow cat.
It connects and reads codes.
I have it scanned about every 3 months just to check things.
Had a new cat and O2 sensors installed about 6 months ago and it plugged up in about 3,000 mi so I hollowed it out again.
It does burn some oil. Enough apparently to destroy catalytic converters in about 3,000 MI, but the plugs last about a year.
I am constantly taking apart and cleaning things and maintaining it to keep it going.
Old 01-05-2023 | 07:27 PM
  #12  
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Originally Posted by Oldblue
Missed that one, is it P0420, because of the hollow catalytic converter?
Yes, the light has been on for about 6 years now.
It does burn some oil.
Enough to destroy a catalytic converter in about 3,000 mi but not enough to foul the plugs for about a year.
Just had a brand new cat and O2 sensors on it 6 months ago and it burned it up again and 3,000 MI so I hollered it back out. No other codes other than stuff I already replaced like the O2 sensor. I made a catch can for it and I keep the throttle body and everything I can as clean as I can to mitigate things plugging up and to keep it going till I can do a rebuild.









Old 01-05-2023 | 07:31 PM
  #13  
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Originally Posted by donbrew
Ever think maybe the computer is calibrated for a good catalytic converter?
So, we know there is one code, P0420, that masks some other codes.
I wouldn't mind doing that if it didn't burn them up every 3,000 miles.
Been this way for about 6 years.
It is what it is until I can rebuild or replace the engine.
For now it runs great with the exception of this issue and a bit of smoke when I get on it really hard between shifts.
Put over 130k on it with a hollow catalytic converter not really certain why the computer would just suddenly start having a problem with it unless there were some other sensor or something causing it.
Old 01-05-2023 | 07:33 PM
  #14  
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From: Arizona
Originally Posted by greg8453
So, the CEL is always on and the cat code is the only code?
You have misfires?
Yes, it will misfire at low RPM if there is no fuel injector cleaner added to the fuel. The fuel octane or type doesn't matter either. It just wants fuel injector cleaner to run normal at low RPM.
Old 01-05-2023 | 08:41 PM
  #15  
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Well, you have answered your own question. It runs poorly because it has been poorly treated.
P0420 prevents some tests from running.
Solution is a new engine and a new perspective on maintenance.
Old 01-05-2023 | 11:31 PM
  #16  
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From: Davison MI
Originally Posted by WhyWolf
Light is on
​​Been on for about 6 years from the hollow cat.
It connects and reads codes.
I have it scanned about every 3 months just to check things.
Had a new cat and O2 sensors installed about 6 months ago and it plugged up in about 3,000 mi so I hollowed it out again.
It does burn some oil. Enough apparently to destroy catalytic converters in about 3,000 MI, but the plugs last about a year.
I am constantly taking apart and cleaning things and maintaining it to keep it going.
Is that a code reader or a scan tool? If it's a scan tool what are the fuel trims doing?
Old 01-06-2023 | 05:17 PM
  #17  
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Originally Posted by donbrew
Well, you have answered your own question. It runs poorly because it has been poorly treated.
P0420 prevents some tests from running.
Solution is a new engine and a new perspective on maintenance.
Jeez,so much for the friendly car forums of people helping others I guess.
Ever hear the expression if you don't have anything good to say then don't say it at all?

Last edited by Oldblue; 01-06-2023 at 05:32 PM. Reason: Removed offensive abusive comments
Old 01-06-2023 | 08:40 PM
  #18  
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So now stating facts is rude? What good could be said? "Oh, the poor dear is going to die soon"?
There might have been something to that could have fixed the problem seven years ago.
Old 01-08-2023 | 01:42 PM
  #19  
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Originally Posted by WhyWolf
Jeez,so much for the friendly car forums of people helping others I guess.
Ever hear the expression if you don't have anything good to say then don't say it at all?
Donbrew - facts should only be given after asking permission to do so.
Glad to see you still hanging in there Don.
Old 01-08-2023 | 04:18 PM
  #20  
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I deleted the rest of the trash talk, then banned WhyWolf
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