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View Full Version : Did the plug fouler trick



BarryT82
09-25-2006, 05:14 PM
So today I was bored and decided to try out the plug fouler trick to get rid of the horrible gas smell the ATP test pipe causes. I got the 42002 HELP plug foulers for $3.97 and a 1/2" drill bit for $2.00. I drilled one of the foulers out and put it on the second 02 sensor and I'll be damned, THE SMELL IS GONE! I don't smell like fuel everytime I start the car in the garage now. I wish I would have done this when I installed the test pipe. I'm running a stock ecu until I get the chipped one back. Damn this thing is slow with a stock ecu.

pac1085
09-25-2006, 05:17 PM
Eh? Never heard of it being done to get rid of a gas smell, don't see why it would help either. I had mine non-foulers on for a while and never noticed a difference...

quickglx
09-25-2006, 05:34 PM
Yeah the fouler just helps get rid of thCEL... The cat is what burns off the COs to make it not smell. You must be high off the fumes

Neo1130
09-25-2006, 06:37 PM
C'mon Barry?! I thought you were one of the smart guys here!! I have to agree... The reason there should be no difference is because the post cat o2 has NO say in mixture...

durfA4
09-25-2006, 06:39 PM
the reason may be that the O2 sensor is reading normal, there for different mix to heat up the CAT. IE leaner no gas smell.

d_maniac
09-25-2006, 07:26 PM
barry how loud is you car with that setup??

pac1085
09-25-2006, 07:44 PM
Originally posted by durfA4
the reason may be that the O2 sensor is reading normal, there for different mix to heat up the CAT. IE leaner no gas smell.

Teh rear O2 sensor has NOTHING to do with how the engine runs, its just there to measure the cats effeciency. I've been running my car for months without it even plugged in.

nAUDI
09-25-2006, 09:02 PM
Originally posted by pac1085
Teh rear O2 sensor has NOTHING to do with how the engine runs, its just there to measure the cats effeciency. I've been running my car for months without it even plugged in.


I see what durfA4 is trying to say. The ECU may be compensating for the low delta reading between sensor 1 and sensor 2 during initial startup. Sensor 2 has nothing to do with AFR's during normal driving, but maybe something during startup? Could explain what BarryT82 is experiencing

Neo1130
09-26-2006, 03:21 AM
Originally posted by nAUDI
I see what durfA4 is trying to say. The ECU may be compensating for the low delta reading between sensor 1 and sensor 2 during initial startup. Sensor 2 has nothing to do with AFR's during normal driving, but maybe something during startup? Could explain what BarryT82 is experiencing


I thought that is what the secondary air inj pump was for... Squirts a little stream of air into the exhaust for a few seconds....

BarryT82
09-26-2006, 03:36 AM
It was running rich at idle because of the O2 sensor. Putting the plug fouler on caused it to stop running rich. I guess I should have worded that differently. [:D]

Insanehatter
09-26-2006, 06:36 AM
i still dont see how the o2 sensor would cause you to run rich... we are talking about the POST car 02 sensor correct?

BarryT82
09-26-2006, 07:46 AM
yup. I don't know, but it worked. When I start the car it doesn't smell bad like it did without it.

Chard
09-26-2006, 09:23 AM
I've been running with and without the non-fouler. All it does is gets rid of the CEL, still stinks.

pipe7284
09-26-2006, 09:25 AM
So it would be any problem running the car without the post O2 sensor? until i get a new one.

Chard
09-26-2006, 09:27 AM
Nope, you'll just have to live with the CEL. You'll have to clear the code when you eventually get the new post-cat sensor. It'll say inefficient catalyst.

bassed
09-26-2006, 10:40 AM
I still get a CEL with Non-Foulers stacked on Post Cat (my case 2 02 on TP)O2 sensor.

turboquattro068
09-26-2006, 10:55 AM
i have two on but havent yet got my new front o2 sensor, going to see how it all works out when she comes UPS!

BarryT82
09-26-2006, 10:59 AM
I have no CEL and it's not running rich now. I don;t know. I used the long fouler

bassed
09-26-2006, 11:10 AM
The combination of short and long varies even among same engine codes for some reason.

azndrunk74
09-26-2006, 01:49 PM
Was your O2 sensor already plugged in before installing the foulers? You probably got rid of the gas smell by physically plugging up the bung where the second O2 sensor goes. Any little leak will give you a gas smell.

BarryT82
09-26-2006, 03:47 PM
Yeah, it was installed before I put the fouler on. I removed it, then put it on.

Chard
09-27-2006, 04:31 PM
if you have a dbw, it won't work apparently. I have a 99.5 AEB motor and they (I have 2 stacked) work.

goody6691
09-27-2006, 09:40 PM
my rear o2 is hanging in the engine bay, i have no cel