How important is the air pump for smog testing?
#1
Senior Member
Thread Starter
How important is the air pump for smog testing?
Just wondering how important you guys feel the air pump is for smog testing perposes.... i removed it awhile ago and had a 2.5" exhaust put on the car. It uses one "long nose" magnaflow cat with no air pump or precat. Think i might be able to squeek it though if the car is hot? It runs fine otherwise, no smoke or backfiring etc.
and yes i did read the smog thread, but i am just wondering if it is worth my time to put the air pump back on, and have the port installed into the cat as the new 2.5" system dosnt have one. (the 1" line into the cat with the check valve on the end.
thanks,
brandon
thanks,
brandon
EDIT - Sorry its an 88 turboII
and yes i did read the smog thread, but i am just wondering if it is worth my time to put the air pump back on, and have the port installed into the cat as the new 2.5" system dosnt have one. (the 1" line into the cat with the check valve on the end.
thanks,
brandon
thanks,
brandon
EDIT - Sorry its an 88 turboII
#4
Moderator
iTrader: (3)
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,832
Received 2,599 Likes
on
1,846 Posts
air pump is more important than the cat. it MIGHT pass with a good cat an no pump.
#5
Senior Member
Thread Starter
i am not too worried about the visual inspection, the guys i take it too are good about that. But actually passing the tailpipe test is all im worried about. The cat is brand new, but i will install the air pump if it will be much help in passing the test.
So i should reinstall it?
thanks,
brandon
So i should reinstall it?
thanks,
brandon
#6
Engine, Not Motor
iTrader: (1)
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 108 Likes
on
91 Posts
If the cat has a connection for the split air pipe, then it needs air and hence the airpump. If the cat has no such connection then extra air is not required. However you may not pass without the airpump as it also serves to help combustion continue in the exhaust manifold and exhaust ports.
Thread
Thread Starter
Forum
Replies
Last Post
Skeese
Adaptronic Engine Mgmt - AUS
65
03-28-17 03:30 PM
12abridgeport
1st Generation Specific (1979-1985)
2
08-17-15 06:28 PM