Clogged cat converters?
Thread Starter
Teching In
Joined: Nov 2003
Posts: 47
Likes: 0
From: Indiana
Clogged cat converters? Hello all,
I think I have clogged cats. I am using up about 1/4 tank of gas per 18-20 miles of driving. This is not right. I usually use about 1/2 tank or less going to
Louisville visiting family. It is about 1.5 hrs. away from were I live.
Could it be the cats? or what?
Thanks,
Adam 2002 T/A Firehawk#536 M6
MAGNAFLOW EXHAUST
SLP Y-PIPE, 85MM MAF, STB
PPC BELLOW
BMR TUNNEL BRACE, LCA'S
SPHON ADJ PANHARD ROD
EDELBROCK TORQUE ARM
TSP 85MM LID
HOLLEY POWERSHOT FILTER
HOTCHKIS SFC'S
MSD WIRES w/NGK TR55'S GAP AT 0.55
I think I have clogged cats. I am using up about 1/4 tank of gas per 18-20 miles of driving. This is not right. I usually use about 1/2 tank or less going to
Louisville visiting family. It is about 1.5 hrs. away from were I live.
Could it be the cats? or what?
Thanks,
Adam 2002 T/A Firehawk#536 M6
MAGNAFLOW EXHAUST
SLP Y-PIPE, 85MM MAF, STB
PPC BELLOW
BMR TUNNEL BRACE, LCA'S
SPHON ADJ PANHARD ROD
EDELBROCK TORQUE ARM
TSP 85MM LID
HOLLEY POWERSHOT FILTER
HOTCHKIS SFC'S
MSD WIRES w/NGK TR55'S GAP AT 0.55
Joined: Nov 2001
Posts: 34,629
Likes: 2,550
From: Schiller Park, ILL Member: #317
What makes you think it's the cats? Exhaust note sound funny (quieter than normal)? Did you see one or both of the cats glowing red? Is the car running as normal other than the poor MPG?
Tons of things besides cats could cause your issue. Got an SES light? Got access to an OBD scanner?
Tons of things besides cats could cause your issue. Got an SES light? Got access to an OBD scanner?
On The Tree
Joined: Nov 2001
Posts: 175
Likes: 0
From: Cincinnati, OH
If a cat is clogged, it will throw a code. The trailing O2 sensor will report a voltage that varies more than it should. If you do have a clogged cat, the good news is that your emissions warranty is much longer than the rest of the car. I had a clogged cat last year and I got the dealer to replace both of them. didn't cost me a nickel.
