clogged catalytic converter 2003 m45

Forum for Infiniti M35 and M45, and Nissan Fuga owners.
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GNR4ALL
Posts: 63
Joined: Tue Feb 06, 2007 6:30 am
Car: 2003 M45 Black Stallion

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So my car has been driving horribly lately. I tried a BG 44K session and now my mechanic says the catalytic converter is clogged thats why the performance is so bad. Is there any way to clean it? also if i need to replace it is this the part i need?

http://www.trademotion.com/par...gid=2


caug1
Posts: 152
Joined: Mon Jan 08, 2007 4:32 am
Car: 03 M45
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can you describe better " driving horiblly" ?did you use bad gas lately? car has to cats.thanks,caug.

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GNR4ALL
Posts: 63
Joined: Tue Feb 06, 2007 6:30 am
Car: 2003 M45 Black Stallion

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feels like the engine is choking. I always use 93 octane gas. the only thing i did recently was use the BG 44K. Is the link i put in my fist post the cats?

Q45tech
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Posts: 14296
Joined: Tue Apr 30, 2002 3:19 am
Car: 1990 Q45 342,400 miles 22 years ownership with original engine
1995 G20t 5 speed 334,000 miles 16" 2002 wheels - 205/50/16 Sr20ve vvl

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What do the individual cat back pressure vs rpm vs load measurements show. PSI? Make a graph.

It sounds like you might not be using a certified trained on this model TECHNICAN?....................."my mechanic"

Careful non oem aftermarkets and high flows are designed to only last a few years at best thus low cost..............just to get thru the next emission test to sell a car.

CAT failure is very rare unless mods or ecu reflash, etc. Some states have longer cat warranty than oem warranty check your state epa if you are above 70k.

auditech10
Posts: 821
Joined: Tue Mar 28, 2006 9:24 pm
Car: 03 M45

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You should have AT LEAST a 7year/70Kmile warranty on your cat. Bring it to the dealer and have a certified technician, as q45tech stated, look at it.

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szh
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Joined: Tue Jul 23, 2002 12:54 pm
Car: 2018 Tesla Model 3.

Unfortunately, no longer a Nissan or Infiniti, but continuing here at NICO!
Location: San Jose, CA

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If the cats do need replacements, keep in mind that this item may be covered by a warranty item that is required by Federal and many state laws (for smog control issues). Please see the dealer and get a correct assessment for sure!

Z

caug1
Posts: 152
Joined: Mon Jan 08, 2007 4:32 am
Car: 03 M45
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sounds like possibility of electrical problem?does this car has coil packs? or things that located right above the sparkplags? one of them not performing right?i forgot the name for them.

let us know.caug.

xerexabante
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Joined: Fri Sep 29, 2006 12:31 pm
Car: '02 Infiniti Q45
'02 Nissan Maxima SE
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Why not try to unhook the cat then run to see if it runs better. should be only 4 bolts holding them. Or you can take it to the dealer for warranty Federal Emissions Warranty should be 8years/80k miles

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GNR4ALL
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Joined: Tue Feb 06, 2007 6:30 am
Car: 2003 M45 Black Stallion

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Do you know if the 8 year 80,000 miles applies to NY too? i have 75000 miles on my car

xerexabante
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Car: '02 Infiniti Q45
'02 Nissan Maxima SE
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i read the warranty book before i cant find it. will try looking for it. i strongly believe it is 8/80k for emissions and ecu's

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GNR4ALL
Posts: 63
Joined: Tue Feb 06, 2007 6:30 am
Car: 2003 M45 Black Stallion

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thanx. i appreciate the help


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