Questions tagged [smog-pump]

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P0491 Secondary Air Injection System Insufficient Flow. Stumped

My VW CC 2010 is having a CEL with the code P0491 which means the pressure sensor is not detecting enough air being pumped from the intake into the exhaust. No other codes. No problems since this is ...
Salvador Martinez's user avatar
1 vote
2 answers

2000 mustang 3.8l v6 smog pump issues

I have a 2000 mustangs v6 3.8l The smog pump is not working (I think its an electrical problem) but that's outside of the point. I live in Oklahoma and we have no emission stuff (Amen!!!) so can I ...
Chris Manning's user avatar
2 votes
1 answer

Removing the smog pump on an 84 Ranger

I have an old 84 Ranger with a 2.8L V6 and I'm trying to squeeze out as much power out of the engine as possible. The cat had been removed by the last owner, so the pump was essentially just pushing ...
Kevin Evans's user avatar
  • 1,196
4 votes
2 answers

Are there plugs for sale that are used to plug unused (thin) vacuum lines?

A bit of the background: I have a Mercedes that has a serpentine belt-driven air pump to help reduce smog in the exhaust. I heard this whole pump can be removed without causing any trouble, so I ...
David Xu's user avatar
  • 357
4 votes
2 answers

Is a secondary air injection pump motor necessary?

My check engine light came on and the mechanic said the problem is that the secondary air injection pump motor broke. It's a used car (2004 VW new beetle) with about 150,000 miles on it and the parts ...
sq1020's user avatar
  • 143
4 votes
3 answers

2004 Jetta - Secondary Air Injection System Incorrect

My check engine light came on and I took it to the parts store to get the computer read. The error that came up is Secondary Air Injection System Incorrect. and the probable causes listed were: 1 ...
James's user avatar
  • 245