Service engine soon?

[johnharley]

Does anyone have a link to search error codes on an 01 Gt? I plugged it in to a scanner and it showed P420 Catalyst system below threshold bank 1. Any suggestions? I am thinking maybe an 02 sensor. The car has pretty much been stored for over a year for my son who is returning next week from the military overseas. Any opinions would be appreciated. Thanks

 

[d98gt]

http://forums.stangnet.com/showthread.php?t=514350 Does this help

 

[johnharley]

Error code

Thanks for the link it says. "P0420 Catalyst System Efficiency below Limit - Bank No 1." But what does that mean?

 

[Kilgore Trout]

That is a common one, try a search of 4.6 tech and I am sure you will find the answer.

 

[ToplessStang]

P0420 is usually caused by the cat (bank 1 in this case) not doing is job anymore. It's a good reason to buy an O/R mid pipe with MIL eliminators . On the our cars the cats all come together as part of the mid pipe so you'd have to buy another stock mid pipe which is very $$$$ new.

A diagnostic test by a GOOD tech would be able to confirm 100% that the cat is the problem.

 

[BlackenedSVT]

send Mike a message on here. SVTtech. Or i'm sure he'll chime in soon. Hes a Ford tech and can help ya out in no time