Does removing the smog pump cause trouble codes?

L

leakyfaucet

Member

Dec 19, 2003

273

0

16

North Carolina

Mar 13, 2004

#1

• Mar 13, 2004

• #1

Hi, I recently checked my engine codes and got the codes 41, 81, and 91.

The 41 and 91 are from the oxygen sensors not working. I can verify this with terrible mileage and black tailpipes. The 81 is from the "thermactor air circuit." I have removed my smog pump and plugged the lines. I was wondering if anyone else has done this and got the code 81. I ask because the oxygen sensors are good, and I am thinking that if the TAB and TAD are bad it might cause the oxygen sensors not to switch on. Any truth to this?

 

L

leakyfaucet

Member

Dec 19, 2003

273

0

16

North Carolina

Mar 13, 2004

#2

• Mar 13, 2004

• #2

bump

 

89MustangGX

I have nothing productive to add!

Jul 3, 2001

10,262

1

0

Mill Creek, WA

Mar 13, 2004

#3

• Mar 13, 2004

• #3

Not having the pump will throw the thermactor code, but causes no other side effects.

 

latham83

New Member

Jul 24, 2003

496

0

0

Mar 14, 2004

#4

• Mar 14, 2004

• #4

i got rid of my pump and and all the tubing and didnt get a code?

 

89MustangGX

I have nothing productive to add!

Jul 3, 2001

10,262

1

0

Mill Creek, WA

Mar 14, 2004

#5

• Mar 14, 2004

• #5

latham83 said:

i got rid of my pump and and all the tubing and didnt get a code?

Click to expand...

It won't trip a light, but it will throw a code. If you run your codes you will see it (maybe #83??).

 

E

eagle87

Member

Apr 30, 2003

62

0

6

New York

Mar 14, 2004

#6

• Mar 14, 2004

• #6

I also have 41,91. I have removed the air pump also, I would like to know more about this becuase 41 and 91 read that the motor is LEAN. If somebody could explain further.

 

9

90stangLX302

New Member

Dec 2, 2003

76

0

0

Good ol' Bellaire Ohio

Mar 14, 2004

#7

• Mar 14, 2004

• #7

After i removed my smog pump,... i have smoke when i start the car up and right at first when i gas it. I also added GT-40P heads at the same time. I dont know if it's related or not but i was just curious

 

L

leakyfaucet

Member

Dec 19, 2003

273

0

16

North Carolina

Mar 14, 2004

#8

• Mar 14, 2004

• #8

89MustangGX said:

It won't trip a light, but it will throw a code. If you run your codes you will see it (maybe #83??).

Click to expand...

Mine threw an 81 for the "thermactor air circuit".

eagle87 said:

I also have 41,91. I have removed the air pump also, I would like to know more about this becuase 41 and 91 read that the motor is LEAN. If somebody could explain further.

Click to expand...

It means either lean or not switching on. Based on the fact that I have terrible gas mileage and black tailpipes (not to mention the rich smell) I'm going to have to guess that mine just aren't turning on.

 

9350notch

New Member

Dec 31, 2001

33

0

0

Boston, MA

Mar 14, 2004

#9

• Mar 14, 2004

• #9

My air pump is making a strange noise, that is rpm sensitive. It gets louder when you rev the engine. I can only describe the noise as a whirring noise, and I was wondering if this noise is normal or is something bad?? I was also thinking of removing it completely. Does this cause you to fail emissions, or any other side effect??

 

J

jester111

New Member

Mar 3, 2004

34

0

0

Toronto, Ca

Mar 14, 2004

#10

• Mar 14, 2004

• #10

hi
I just went through chasing down codes and i also had 41,91,81, check the tad solonoids located on the pass side shock tower mine were cracked, replaced both all codes gone. the 41,91 were false codes due to the code 81.
hope this helps

 

E

eagle87

Member

Apr 30, 2003

62

0

6

New York

Mar 14, 2004

#11

• Mar 14, 2004

• #11

Thanks for the help I think thats why I also have those codes.