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bpmack16

E30 Mastermind

Join Date: Aug 2006

Posts: 1521
#1

HELP New headers

10-25-2006, 02:28 PM

I just got a set of Racing Dynamics headers. They came off a 325i and went on my 325i. I got new gaskits and bulted it up. I have driven the car to work the next day and when I got to a red light the idle was all over the place and the car almost stalled. I looked at my vac gadge and it was at about 15-16. I am wondering 3 things could it be the O2 sensor, car ajusting to new airflow, or a vac leak some where or the AFM. The car ran fine before the headers and actuly had headers on it before The RD ones. any idea
Tags: None
Mike325

No R3VLimiter

Join Date: Mar 2006

Posts: 3685
#2

10-25-2006, 02:31 PM

Possible that the nuts holding the headers to the head came loose.

Originally posted by cabriodster87

"Honey? What color is this wire? Is it the same as that one? Are you sure? I don't believe it. OK, it works. Thank you sweetie."

Originally posted by Kershaw

i've got a boner and a desire to speed.
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bpmack16

E30 Mastermind

Join Date: Aug 2006

Posts: 1521
#3

10-25-2006, 02:35 PM

But would that change my VAC
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Mike325

No R3VLimiter

Join Date: Mar 2006

Posts: 3685
#4

10-25-2006, 02:45 PM

What does VAC stand for again?

Originally posted by cabriodster87

"Honey? What color is this wire? Is it the same as that one? Are you sure? I don't believe it. OK, it works. Thank you sweetie."

Originally posted by Kershaw

i've got a boner and a desire to speed.
Comment
Avus E30

No R3VLimiter

Join Date: Feb 2005

Posts: 3650
#5

10-25-2006, 02:54 PM

vacuum

HDE30 <3
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cthulu703

Wrencher

Join Date: Oct 2004

Posts: 288
#6

10-26-2006, 12:32 PM

It should have no effect on vacuum. It sounds like the most likely culprit is the O2 sensor.
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Digitalwave

is a poseur

Join Date: Oct 2003

Posts: 6280
#7

10-26-2006, 01:12 PM

I don't think I have ever heard of a bad O2 sensor causing an idle to go wild.

RISING EDGE
Let's drive fast and have fun.
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